Merge branch 'master'

Documentation/connector/connector.txt

@@ -131,3 +131,47 @@ Netlink itself is not reliable protocol, that means that messages can
 be lost due to memory pressure or process' receiving queue overflowed,
 so caller is warned must be prepared. That is why struct cn_msg [main
 connector's message header] contains u32 seq and u32 ack fields.
+
+/*****************************************/
+Userspace usage.
+/*****************************************/
+2.6.14 has a new netlink socket implementation, which by default does not
+allow to send data to netlink groups other than 1.
+So, if to use netlink socket (for example using connector) 
+with different group number userspace application must subscribe to 
+that group. It can be achieved by following pseudocode:
+
+s = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
+
+l_local.nl_family = AF_NETLINK;
+l_local.nl_groups = 12345;
+l_local.nl_pid = 0;
+
+if (bind(s, (struct sockaddr *)&l_local, sizeof(struct sockaddr_nl)) == -1) {
+	perror("bind");
+	close(s);
+	return -1;
+}
+
+{
+	int on = l_local.nl_groups;
+	setsockopt(s, 270, 1, &on, sizeof(on));
+}
+
+Where 270 above is SOL_NETLINK, and 1 is a NETLINK_ADD_MEMBERSHIP socket
+option. To drop multicast subscription one should call above socket option
+with NETLINK_DROP_MEMBERSHIP parameter which is defined as 0.
+
+2.6.14 netlink code only allows to select a group which is less or equal to
+the maximum group number, which is used at netlink_kernel_create() time.
+In case of connector it is CN_NETLINK_USERS + 0xf, so if you want to use
+group number 12345, you must increment CN_NETLINK_USERS to that number.
+Additional 0xf numbers are allocated to be used by non-in-kernel users.
+
+Due to this limitation, group 0xffffffff does not work now, so one can
+not use add/remove connector's group notifications, but as far as I know, 
+only cn_test.c test module used it.
+
+Some work in netlink area is still being done, so things can be changed in
+2.6.15 timeframe, if it will happen, documentation will be updated for that
+kernel.

Documentation/dell_rbu.txt

@@ -35,6 +35,7 @@ The driver load creates the following directories under the /sys file system.
 /sys/class/firmware/dell_rbu/data
 /sys/devices/platform/dell_rbu/image_type
 /sys/devices/platform/dell_rbu/data
+/sys/devices/platform/dell_rbu/packet_size
 
 The driver supports two types of update mechanism; monolithic and packetized.
 These update mechanism depends upon the BIOS currently running on the system.
@@ -47,8 +48,26 @@ By default the driver uses monolithic memory for the update type. This can be
 changed to packets during the driver load time by specifying the load
 parameter image_type=packet.  This can also be changed later as below
 echo packet > /sys/devices/platform/dell_rbu/image_type
-Also echoing either mono ,packet or init in to image_type will free up the
+
-memory allocated by the driver.
+In packet update mode the packet size has to be given before any packets can
+be downloaded. It is done as below
+echo XXXX > /sys/devices/platform/dell_rbu/packet_size
+In the packet update mechanism, the user neesd to create a new file having
+packets of data arranged back to back. It can be done as follows
+The user creates packets header, gets the chunk of the BIOS image and
+placs it next to the packetheader; now, the packetheader + BIOS image chunk
+added to geather should match the specified packet_size. This makes one
+packet, the user needs to create more such packets out of the entire BIOS
+image file and then arrange all these packets back to back in to one single
+file.
+This file is then copied to /sys/class/firmware/dell_rbu/data.
+Once this file gets to the driver, the driver extracts packet_size data from
+the file and spreads it accross the physical memory in contiguous packet_sized
+space.
+This method makes sure that all the packets get to the driver in a single operation.
+
+In monolithic update the user simply get the BIOS image (.hdr file) and copies
+to the data file as is without any change to the BIOS image itself.
 
 Do the steps below to download the BIOS image.
 1) echo 1 > /sys/class/firmware/dell_rbu/loading
@@ -58,7 +77,10 @@ Do the steps below to download the BIOS image.
 The /sys/class/firmware/dell_rbu/ entries will remain till the following is
 done.
 echo -1 > /sys/class/firmware/dell_rbu/loading.
-Until this step is completed the drivr cannot be unloaded.
+Until this step is completed the driver cannot be unloaded.
+Also echoing either mono ,packet or init in to image_type will free up the
+memory allocated by the driver.
+
 If an user by accident executes steps 1 and 3 above without executing step 2;
 it will make the /sys/class/firmware/dell_rbu/ entries to disappear.
 The entries can be recreated by doing the following
@@ -66,15 +88,11 @@ echo init > /sys/devices/platform/dell_rbu/image_type
 NOTE: echoing init in image_type does not change it original value.
 
 Also the driver provides /sys/devices/platform/dell_rbu/data readonly file to
-read back the image downloaded. This is useful in case of packet update
+read back the image downloaded.
-mechanism where the above steps 1,2,3 will repeated for every packet.
-By reading the /sys/devices/platform/dell_rbu/data file all packet data
-downloaded can be verified in a single file.
-The packets are arranged in this file one after the other in a FIFO order.
 
 NOTE:
-This driver requires a patch for firmware_class.c which has the addition
+This driver requires a patch for firmware_class.c which has the modified
-of request_firmware_nowait_nohotplug function to wortk
+request_firmware_nowait function.
 Also after updating the BIOS image an user mdoe application neeeds to execute
 code which message the BIOS update request to the BIOS. So on the next reboot
 the BIOS knows about the new image downloaded and it updates it self.

Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 14
-EXTRAVERSION =-rc3
+EXTRAVERSION =-rc4
 NAME=Affluent Albatross
 
 # *DOCUMENTATION*

arch/arm/Makefile

@@ -53,7 +53,7 @@ tune-$(CONFIG_CPU_ARM926T)	:=-mtune=arm9tdmi
 tune-$(CONFIG_CPU_SA110)	:=-mtune=strongarm110
 tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100
 tune-$(CONFIG_CPU_XSCALE)	:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
-tune-$(CONFIG_CPU_V6)		:=-mtune=strongarm
+tune-$(CONFIG_CPU_V6)		:=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
 
 # Need -Uarm for gcc < 3.x
 CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)

arch/arm/kernel/armksyms.c

@@ -45,8 +45,8 @@ extern void fp_enter(void);
 
 #define EXPORT_SYMBOL_ALIAS(sym,orig)		\
  EXPORT_CRC_ALIAS(sym)				\
- const struct kernel_symbol __ksymtab_##sym	\
+ static const struct kernel_symbol __ksymtab_##sym	\
-  __attribute__((section("__ksymtab"))) =	\
+  __attribute_used__ __attribute__((section("__ksymtab"))) =	\
     { (unsigned long)&orig, #sym };
 
 /*

arch/arm/kernel/entry-common.S

@@ -106,15 +106,10 @@ ENTRY(ret_from_fork)
 	.endm
 
 .Larm700bug:
-	ldr	r0, [sp, #S_PSR]		@ Get calling cpsr
-	sub	lr, lr, #4
-	str	lr, [r8]
-	msr	spsr_cxsf, r0
 	ldmia	sp, {r0 - lr}^			@ Get calling r0 - lr
 	mov	r0, r0
-	ldr	lr, [sp, #S_PC]			@ Get PC
 	add	sp, sp, #S_FRAME_SIZE
-	movs	pc, lr
+	subs	pc, lr, #4
 #else
 	.macro	arm710_bug_check, instr, temp
 	.endm

arch/arm/mach-s3c2410/mach-anubis.c

@@ -125,7 +125,7 @@ static int external_map[]   = { 2 };
 static int chip0_map[]      = { 0 };
 static int chip1_map[]      = { 1 };
 
-struct mtd_partition anubis_default_nand_part[] = {
+static struct mtd_partition anubis_default_nand_part[] = {
 	[0] = {
 		.name	= "Boot Agent",
 		.size	= SZ_16K,

arch/arm/mach-s3c2410/mach-bast.c

@@ -230,7 +230,7 @@ static int chip0_map[] = { 1 };
 static int chip1_map[] = { 2 };
 static int chip2_map[] = { 3 };
 
-struct mtd_partition bast_default_nand_part[] = {
+static struct mtd_partition bast_default_nand_part[] = {
 	[0] = {
 		.name	= "Boot Agent",
 		.size	= SZ_16K,
@@ -340,7 +340,7 @@ static struct resource bast_dm9k_resource[] = {
  * better IO routines can be written and tested
 */
 
-struct dm9000_plat_data bast_dm9k_platdata = {
+static struct dm9000_plat_data bast_dm9k_platdata = {
 	.flags		= DM9000_PLATF_16BITONLY
 };
 

arch/arm/mach-s3c2410/mach-vr1000.c

@@ -288,7 +288,7 @@ static struct resource vr1000_dm9k1_resource[] = {
  * better IO routines can be written and tested
 */
 
-struct dm9000_plat_data vr1000_dm9k_platdata = {
+static struct dm9000_plat_data vr1000_dm9k_platdata = {
 	.flags		= DM9000_PLATF_16BITONLY,
 };
 

arch/arm/mach-s3c2410/s3c2410.c

@@ -125,9 +125,6 @@ static struct platform_device *uart_devices[] __initdata = {
 	&s3c_uart2
 };
 
-/* store our uart devices for the serial driver console */
-struct platform_device *s3c2410_uart_devices[3];
-
 static int s3c2410_uart_count = 0;
 
 /* uart registration process */

arch/arm/mach-s3c2410/s3c2440.c

@@ -151,7 +151,7 @@ void __init s3c2440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 
 #ifdef CONFIG_PM
 
-struct sleep_save s3c2440_sleep[] = {
+static struct sleep_save s3c2440_sleep[] = {
 	SAVE_ITEM(S3C2440_DSC0),
 	SAVE_ITEM(S3C2440_DSC1),
 	SAVE_ITEM(S3C2440_GPJDAT),
@@ -260,7 +260,7 @@ void __init s3c2440_init_clocks(int xtal)
  * as a driver which may support both 2410 and 2440 may try and use it.
 */
 
-int __init s3c2440_core_init(void)
+static int __init s3c2440_core_init(void)
 {
 	return sysdev_class_register(&s3c2440_sysclass);
 }

arch/arm/mach-s3c2410/time.c

@@ -38,6 +38,7 @@
 #include <asm/hardware/clock.h>
 
 #include "clock.h"
+#include "cpu.h"
 
 static unsigned long timer_startval;
 static unsigned long timer_usec_ticks;

arch/arm/nwfpe/fpa11.c

@@ -31,11 +31,6 @@
 #include <linux/string.h>
 #include <asm/system.h>
 
-/* forward declarations */
-unsigned int EmulateCPDO(const unsigned int);
-unsigned int EmulateCPDT(const unsigned int);
-unsigned int EmulateCPRT(const unsigned int);
-
 /* Reset the FPA11 chip.  Called to initialize and reset the emulator. */
 static void resetFPA11(void)
 {

arch/arm/nwfpe/fpa11.h

@@ -95,4 +95,24 @@ extern int8 SetRoundingMode(const unsigned int);
 extern int8 SetRoundingPrecision(const unsigned int);
 extern void nwfpe_init_fpa(union fp_state *fp);
 
+extern unsigned int EmulateAll(unsigned int opcode);
+
+extern unsigned int EmulateCPDT(const unsigned int opcode);
+extern unsigned int EmulateCPDO(const unsigned int opcode);
+extern unsigned int EmulateCPRT(const unsigned int opcode);
+
+/* fpa11_cpdt.c */
+extern unsigned int PerformLDF(const unsigned int opcode);
+extern unsigned int PerformSTF(const unsigned int opcode);
+extern unsigned int PerformLFM(const unsigned int opcode);
+extern unsigned int PerformSFM(const unsigned int opcode);
+
+/* single_cpdo.c */
+
+extern unsigned int SingleCPDO(struct roundingData *roundData,
+			       const unsigned int opcode, FPREG * rFd);
+/* double_cpdo.c */
+extern unsigned int DoubleCPDO(struct roundingData *roundData,
+			       const unsigned int opcode, FPREG * rFd);
+
 #endif

arch/arm/nwfpe/fpa11_cprt.c

@@ -26,12 +26,11 @@
 #include "fpa11.inl"
 #include "fpmodule.h"
 #include "fpmodule.inl"
+#include "softfloat.h"
 
 #ifdef CONFIG_FPE_NWFPE_XP
 extern flag floatx80_is_nan(floatx80);
 #endif
-extern flag float64_is_nan(float64);
-extern flag float32_is_nan(float32);
 
 unsigned int PerformFLT(const unsigned int opcode);
 unsigned int PerformFIX(const unsigned int opcode);

arch/arm/nwfpe/fpopcode.h

@@ -476,4 +476,10 @@ static inline unsigned int getDestinationSize(const unsigned int opcode)
 	return (nRc);
 }
 
+extern unsigned int checkCondition(const unsigned int opcode,
+				   const unsigned int ccodes);
+
+extern const float64 float64Constant[];
+extern const float32 float32Constant[];
+
 #endif

arch/arm/nwfpe/softfloat.h

@@ -265,4 +265,7 @@ static inline flag float64_lt_nocheck(float64 a, float64 b)
 	return (a != b) && (aSign ^ (a < b));
 }
 
+extern flag float32_is_nan( float32 a );
+extern flag float64_is_nan( float64 a );
+
 #endif

arch/cris/arch-v32/kernel/smp.c

@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/cpumask.h>
 #include <linux/interrupt.h>
+#include <linux/module.h>
 
 #define IPI_SCHEDULE 1
 #define IPI_CALL 2
@@ -28,6 +29,7 @@ spinlock_t cris_atomic_locks[] = { [0 ... LOCK_COUNT - 1] = SPIN_LOCK_UNLOCKED};
 /* CPU masks */
 cpumask_t cpu_online_map = CPU_MASK_NONE;
 cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
+EXPORT_SYMBOL(phys_cpu_present_map);
 
 /* Variables used during SMP boot */
 volatile int cpu_now_booting = 0;

arch/m32r/kernel/entry.S

@@ -681,6 +681,15 @@ ENTRY(debug_trap)
 	bl	do_debug_trap
 	bra	error_code
 
+ENTRY(ill_trap)
+	/* void ill_trap(void) */
+	SWITCH_TO_KERNEL_STACK
+	SAVE_ALL
+	ldi	r1, #0				; error_code ; FIXME
+	mv	r0, sp				; pt_regs
+	bl	do_ill_trap
+	bra	error_code
+
 
 /* Cache flushing handler */
 ENTRY(cache_flushing_handler)

arch/m32r/kernel/traps.c

@@ -5,8 +5,6 @@
  *                            Hitoshi Yamamoto
  */
 
-/* $Id$ */
-
 /*
  * 'traps.c' handles hardware traps and faults after we have saved some
  * state in 'entry.S'.
@@ -35,6 +33,7 @@ asmlinkage void ei_handler(void);
 asmlinkage void rie_handler(void);
 asmlinkage void debug_trap(void);
 asmlinkage void cache_flushing_handler(void);
+asmlinkage void ill_trap(void);
 
 #ifdef CONFIG_SMP
 extern void smp_reschedule_interrupt(void);
@@ -77,22 +76,22 @@ void	set_eit_vector_entries(void)
 	eit_vector[5] = BRA_INSN(default_eit_handler, 5);
 	eit_vector[8] = BRA_INSN(rie_handler, 8);
 	eit_vector[12] = BRA_INSN(alignment_check, 12);
-	eit_vector[16] = 0xff000000UL;
+	eit_vector[16] = BRA_INSN(ill_trap, 16);
 	eit_vector[17] = BRA_INSN(debug_trap, 17);
 	eit_vector[18] = BRA_INSN(system_call, 18);
-	eit_vector[19] = 0xff000000UL;
+	eit_vector[19] = BRA_INSN(ill_trap, 19);
-	eit_vector[20] = 0xff000000UL;
+	eit_vector[20] = BRA_INSN(ill_trap, 20);
-	eit_vector[21] = 0xff000000UL;
+	eit_vector[21] = BRA_INSN(ill_trap, 21);
-	eit_vector[22] = 0xff000000UL;
+	eit_vector[22] = BRA_INSN(ill_trap, 22);
-	eit_vector[23] = 0xff000000UL;
+	eit_vector[23] = BRA_INSN(ill_trap, 23);
-	eit_vector[24] = 0xff000000UL;
+	eit_vector[24] = BRA_INSN(ill_trap, 24);
-	eit_vector[25] = 0xff000000UL;
+	eit_vector[25] = BRA_INSN(ill_trap, 25);
-	eit_vector[26] = 0xff000000UL;
+	eit_vector[26] = BRA_INSN(ill_trap, 26);
-	eit_vector[27] = 0xff000000UL;
+	eit_vector[27] = BRA_INSN(ill_trap, 27);
 	eit_vector[28] = BRA_INSN(cache_flushing_handler, 28);
-	eit_vector[29] = 0xff000000UL;
+	eit_vector[29] = BRA_INSN(ill_trap, 29);
-	eit_vector[30] = 0xff000000UL;
+	eit_vector[30] = BRA_INSN(ill_trap, 30);
-	eit_vector[31] = 0xff000000UL;
+	eit_vector[31] = BRA_INSN(ill_trap, 31);
 	eit_vector[32] = BRA_INSN(ei_handler, 32);
 	eit_vector[64] = BRA_INSN(pie_handler, 64);
 #ifdef CONFIG_MMU
@@ -286,7 +285,8 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
 
 DO_ERROR( 1, SIGTRAP, "debug trap", debug_trap)
 DO_ERROR_INFO(0x20, SIGILL,  "reserved instruction ", rie_handler, ILL_ILLOPC, regs->bpc)
-DO_ERROR_INFO(0x100, SIGILL,  "privilege instruction", pie_handler, ILL_PRVOPC, regs->bpc)
+DO_ERROR_INFO(0x100, SIGILL,  "privileged instruction", pie_handler, ILL_PRVOPC, regs->bpc)
+DO_ERROR_INFO(-1, SIGILL,  "illegal trap", ill_trap, ILL_ILLTRP, regs->bpc)
 
 extern int handle_unaligned_access(unsigned long, struct pt_regs *);
 
@@ -329,4 +329,3 @@ asmlinkage void do_alignment_check(struct pt_regs *regs, long error_code)
 		set_fs(oldfs);
 	}
 }
-

arch/ppc/kernel/cputable.c

@@ -91,7 +91,7 @@ struct cpu_spec	cpu_specs[] = {
 		.cpu_features		= CPU_FTR_COMMON | CPU_FTR_601 |
 			CPU_FTR_HPTE_TABLE,
 		.cpu_user_features 	= COMMON_PPC | PPC_FEATURE_601_INSTR |
-			PPC_FEATURE_UNIFIED_CACHE,
+			PPC_FEATURE_UNIFIED_CACHE | PPC_FEATURE_NO_TB,
 		.icache_bsize		= 32,
 		.dcache_bsize		= 32,
 		.cpu_setup		= __setup_cpu_601
@@ -745,7 +745,8 @@ struct cpu_spec	cpu_specs[] = {
 		.cpu_name		= "403GCX",
 		.cpu_features		= CPU_FTR_SPLIT_ID_CACHE |
 			CPU_FTR_USE_TB,
-		.cpu_user_features	= PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
+		.cpu_user_features	= PPC_FEATURE_32 |
+		 	PPC_FEATURE_HAS_MMU | PPC_FEATURE_NO_TB,
 		.icache_bsize		= 16,
 		.dcache_bsize		= 16,
 	},

arch/ppc/kernel/dma-mapping.c

@@ -401,10 +401,10 @@ EXPORT_SYMBOL(__dma_sync);
 static inline void __dma_sync_page_highmem(struct page *page,
 		unsigned long offset, size_t size, int direction)
 {
-	size_t seg_size = min((size_t)PAGE_SIZE, size) - offset;
+	size_t seg_size = min((size_t)(PAGE_SIZE - offset), size);
 	size_t cur_size = seg_size;
 	unsigned long flags, start, seg_offset = offset;
-	int nr_segs = PAGE_ALIGN(size + (PAGE_SIZE - offset))/PAGE_SIZE;
+	int nr_segs = 1 + ((size - seg_size) + PAGE_SIZE - 1)/PAGE_SIZE;
 	int seg_nr = 0;
 
 	local_irq_save(flags);

arch/ppc64/kernel/module.c

@@ -341,6 +341,19 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 			*(unsigned long *)location = my_r2(sechdrs, me);
 			break;
 
+		case R_PPC64_TOC16:
+			/* Subtact TOC pointer */
+			value -= my_r2(sechdrs, me);
+			if (value + 0x8000 > 0xffff) {
+				printk("%s: bad TOC16 relocation (%lu)\n",
+				       me->name, value);
+				return -ENOEXEC;
+			}
+			*((uint16_t *) location)
+				= (*((uint16_t *) location) & ~0xffff)
+				| (value & 0xffff);
+			break;
+
 		case R_PPC64_TOC16_DS:
 			/* Subtact TOC pointer */
 			value -= my_r2(sechdrs, me);

arch/ppc64/kernel/pSeries_pci.c

@@ -32,7 +32,7 @@
 
 #include "pci.h"
 
-static int __initdata s7a_workaround = -1;
+static int __devinitdata s7a_workaround = -1;
 
 #if 0
 void pcibios_name_device(struct pci_dev *dev)
@@ -60,7 +60,7 @@ void pcibios_name_device(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device);
 #endif
 
-static void __init check_s7a(void)
+static void __devinit check_s7a(void)
 {
 	struct device_node *root;
 	char *model;

arch/sh/kernel/smp.c

@@ -22,6 +22,7 @@
 #include <linux/time.h>
 #include <linux/timex.h>
 #include <linux/sched.h>
+#include <linux/module.h>
 
 #include <asm/atomic.h>
 #include <asm/processor.h>
@@ -39,6 +40,8 @@ struct sh_cpuinfo cpu_data[NR_CPUS];
 extern void per_cpu_trap_init(void);
 
 cpumask_t cpu_possible_map;
+EXPORT_SYMBOL(cpu_possible_map);
+
 cpumask_t cpu_online_map;
 static atomic_t cpus_booted = ATOMIC_INIT(0);
 

arch/sparc/Kconfig

@@ -21,10 +21,6 @@ config GENERIC_ISA_DMA
 	bool
 	default y
 
-config GENERIC_IOMAP
-	bool
-	default y
-
 source "init/Kconfig"
 
 menu "General machine setup"

arch/sparc/defconfig

@@ -5,7 +5,6 @@ CONFIG_MMU=y
 CONFIG_UID16=y
 CONFIG_HIGHMEM=y
 CONFIG_GENERIC_ISA_DMA=y
-CONFIG_GENERIC_IOMAP=y
 
 #
 # Code maturity level options

arch/sparc64/kernel/dtlb_base.S

@@ -53,19 +53,18 @@
  * be guaranteed to be 0 ... mmu_context.h does guarantee this
  * by only using 10 bits in the hwcontext value.
  */
-#define CREATE_VPTE_OFFSET1(r1, r2)
+#define CREATE_VPTE_OFFSET1(r1, r2) nop
 #define CREATE_VPTE_OFFSET2(r1, r2) \
 				srax	r1, 10, r2
-#define CREATE_VPTE_NOP		nop
 #else
 #define CREATE_VPTE_OFFSET1(r1, r2) \
 				srax	r1, PAGE_SHIFT, r2
 #define CREATE_VPTE_OFFSET2(r1, r2) \
 				sllx	r2, 3, r2
-#define CREATE_VPTE_NOP
 #endif
 
 /* DTLB ** ICACHE line 1: Quick user TLB misses		*/
+	mov		TLB_SFSR, %g1
 	ldxa		[%g1 + %g1] ASI_DMMU, %g4	! Get TAG_ACCESS
 	andcc		%g4, TAG_CONTEXT_BITS, %g0	! From Nucleus?
 from_tl1_trap:
@@ -74,18 +73,16 @@ from_tl1_trap:
 	be,pn		%xcc, kvmap			! Yep, special processing
 	 CREATE_VPTE_OFFSET2(%g4, %g6)			! Create VPTE offset
 	cmp		%g5, 4				! Last trap level?
-	be,pn		%xcc, longpath			! Yep, cannot risk VPTE miss
-	 nop						! delay slot
 
 /* DTLB ** ICACHE line 2: User finish + quick kernel TLB misses	*/
+	be,pn		%xcc, longpath			! Yep, cannot risk VPTE miss
+	 nop						! delay slot
 	ldxa		[%g3 + %g6] ASI_S, %g5		! Load VPTE
 1:	brgez,pn	%g5, longpath			! Invalid, branch out
 	 nop						! Delay-slot
 9:	stxa		%g5, [%g0] ASI_DTLB_DATA_IN	! Reload TLB
 	retry						! Trap return
 	nop
-	nop
-	nop
 
 /* DTLB ** ICACHE line 3: winfixups+real_faults		*/
 longpath:
@@ -106,8 +103,7 @@ longpath:
 	nop
 	nop
 	nop
-	CREATE_VPTE_NOP
+	nop
 
 #undef CREATE_VPTE_OFFSET1
 #undef CREATE_VPTE_OFFSET2
-#undef CREATE_VPTE_NOP

arch/sparc64/kernel/dtlb_prot.S

@@ -14,14 +14,14 @@
  */
 
 /* PROT ** ICACHE line 1: User DTLB protection trap	*/
-	stxa		%g0, [%g1] ASI_DMMU		! Clear SFSR FaultValid bit
+	mov		TLB_SFSR, %g1
-	membar		#Sync				! Synchronize ASI stores
+	stxa		%g0, [%g1] ASI_DMMU		! Clear FaultValid bit
-	rdpr		%pstate, %g5			! Move into alternate globals
+	membar		#Sync				! Synchronize stores
+	rdpr		%pstate, %g5			! Move into alt-globals
 	wrpr		%g5, PSTATE_AG|PSTATE_MG, %pstate
-	rdpr		%tl, %g1			! Need to do a winfixup?
+	rdpr		%tl, %g1			! Need a winfixup?
 	cmp		%g1, 1				! Trap level >1?
-	mov		TLB_TAG_ACCESS, %g4		! Prepare reload of vaddr
+	mov		TLB_TAG_ACCESS, %g4		! For reload of vaddr
-	nop
 
 /* PROT ** ICACHE line 2: More real fault processing */
 	bgu,pn		%xcc, winfix_trampoline		! Yes, perform winfixup

arch/sparc64/kernel/head.S

@@ -28,19 +28,14 @@
 #include <asm/mmu.h>
 	
 /* This section from from _start to sparc64_boot_end should fit into
- * 0x0000.0000.0040.4000 to 0x0000.0000.0040.8000 and will be sharing space
+ * 0x0000000000404000 to 0x0000000000408000.
- * with bootup_user_stack, which is from 0x0000.0000.0040.4000 to
- * 0x0000.0000.0040.6000 and empty_bad_page, which is from
- * 0x0000.0000.0040.6000 to 0x0000.0000.0040.8000. 
  */
-
 	.text
 	.globl	start, _start, stext, _stext
 _start:
 start:
 _stext:
 stext:
-bootup_user_stack:
 ! 0x0000000000404000
 	b	sparc64_boot
 	 flushw					/* Flush register file.      */
@@ -191,8 +186,9 @@ prom_boot_mapping_phys_low:
 	stx	%l3, [%sp + 2047 + 128 + 0x10]	! num_rets, 5
 	stx	%l2, [%sp + 2047 + 128 + 0x18]	! arg1: "translate"
 	stx	%l5, [%sp + 2047 + 128 + 0x20]	! arg2: prom_mmu_ihandle_cache
-	srlx	%l0, 22, %l3
+	/* PAGE align */
-	sllx	%l3, 22, %l3
+	srlx	%l0, 13, %l3
+	sllx	%l3, 13, %l3
 	stx	%l3, [%sp + 2047 + 128 + 0x28]	! arg3: vaddr, our PC
 	stx	%g0, [%sp + 2047 + 128 + 0x30]	! res1
 	stx	%g0, [%sp + 2047 + 128 + 0x38]	! res2
@@ -211,6 +207,9 @@ prom_boot_mapping_phys_low:
 	ldx	[%sp + 2047 + 128 + 0x48], %l2	! physaddr high
 	stx	%l2, [%l4 + 0x0]
 	ldx	[%sp + 2047 + 128 + 0x50], %l3	! physaddr low
+	/* 4MB align */
+	srlx	%l3, 22, %l3
+	sllx	%l3, 22, %l3
 	stx	%l3, [%l4 + 0x8]
 
 	/* Leave service as-is, "call-method" */
@@ -388,31 +387,30 @@ tlb_fixup_done:
 	 * former does use this code, the latter does not yet due
 	 * to some complexities.  That should be fixed up at some
 	 * point.
+	 *
+	 * There used to be enormous complexity wrt. transferring
+	 * over from the firwmare's trap table to the Linux kernel's.
+	 * For example, there was a chicken & egg problem wrt. building
+	 * the OBP page tables, yet needing to be on the Linux kernel
+	 * trap table (to translate PAGE_OFFSET addresses) in order to
+	 * do that.
+	 *
+	 * We now handle OBP tlb misses differently, via linear lookups
+	 * into the prom_trans[] array.  So that specific problem no
+	 * longer exists.  Yet, unfortunately there are still some issues
+	 * preventing trampoline.S from using this code... ho hum.
 	 */
 	.globl	setup_trap_table
 setup_trap_table:
 	save	%sp, -192, %sp
 
-	/* Force interrupts to be disabled.  Transferring over to
+	/* Force interrupts to be disabled. */
-	 * the Linux trap table is a very delicate operation.
-	 * Until we are actually on the Linux trap table, we cannot
-	 * get the PAGE_OFFSET linear mappings translated.  We need
-	 * that mapping to be setup in order to initialize the firmware
-	 * page tables.
-	 *
-	 * So there is this window of time, from the return from
-	 * prom_set_trap_table() until inherit_prom_mappings_post()
-	 * (in arch/sparc64/mm/init.c) completes, during which no
-	 * firmware address space accesses can be made.
-	 */
 	rdpr	%pstate, %o1
 	andn	%o1, PSTATE_IE, %o1
 	wrpr	%o1, 0x0, %pstate
 	wrpr	%g0, 15, %pil
 
-	/* Ok, now make the final valid firmware call to jump over
+	/* Make the firmware call to jump over to the Linux trap table.  */
-	 * to the Linux trap table.
-	 */
 	call	prom_set_trap_table
 	 sethi	%hi(sparc64_ttable_tl0), %o0
 
@@ -536,15 +534,21 @@ setup_tba:	/* i0 = is_starfire */
 
 	ret
 	 restore
+sparc64_boot_end:
+
+#include "systbls.S"
+#include "ktlb.S"
+#include "etrap.S"
+#include "rtrap.S"
+#include "winfixup.S"
+#include "entry.S"
 
 /*
- * The following skips make sure the trap table in ttable.S is aligned
+ * The following skip makes sure the trap table in ttable.S is aligned
  * on a 32K boundary as required by the v9 specs for TBA register.
  */
-sparc64_boot_end:
+1:
-	.skip	0x2000 + _start - sparc64_boot_end
+	.skip	0x4000 + _start - 1b
-bootup_user_stack_end:
-	.skip	0x2000
 
 #ifdef CONFIG_SBUS
 /* This is just a hack to fool make depend config.h discovering
@@ -556,15 +560,6 @@ bootup_user_stack_end:
 ! 0x0000000000408000
 
 #include "ttable.S"
-#include "systbls.S"
-#include "ktlb.S"
-#include "etrap.S"
-#include "rtrap.S"
-#include "winfixup.S"
-#include "entry.S"
-
-	/* This is just anal retentiveness on my part... */
-	.align	16384
 
 	.data
 	.align	8

arch/sparc64/kernel/itlb_base.S

@@ -15,14 +15,12 @@
  */
 #define CREATE_VPTE_OFFSET1(r1, r2) \
 				srax	r1, 10, r2
-#define CREATE_VPTE_OFFSET2(r1, r2)
+#define CREATE_VPTE_OFFSET2(r1, r2) nop
-#define CREATE_VPTE_NOP		nop
 #else /* PAGE_SHIFT */
 #define CREATE_VPTE_OFFSET1(r1, r2) \
 				srax	r1, PAGE_SHIFT, r2
 #define CREATE_VPTE_OFFSET2(r1, r2) \
 				sllx	r2, 3, r2
-#define CREATE_VPTE_NOP
 #endif /* PAGE_SHIFT */
 
 
@@ -36,6 +34,7 @@
  */
 
 /* ITLB ** ICACHE line 1: Quick user TLB misses		*/
+	mov		TLB_SFSR, %g1
 	ldxa		[%g1 + %g1] ASI_IMMU, %g4	! Get TAG_ACCESS
 	CREATE_VPTE_OFFSET1(%g4, %g6)			! Create VPTE offset
 	CREATE_VPTE_OFFSET2(%g4, %g6)			! Create VPTE offset
@@ -43,41 +42,38 @@
 1:	brgez,pn	%g5, 3f				! Not valid, branch out
 	 sethi		%hi(_PAGE_EXEC), %g4		! Delay-slot
 	andcc		%g5, %g4, %g0			! Executable?
+
+/* ITLB ** ICACHE line 2: Real faults			*/
 	be,pn		%xcc, 3f			! Nope, branch.
 	 nop						! Delay-slot
 2:	stxa		%g5, [%g0] ASI_ITLB_DATA_IN	! Load PTE into TLB
 	retry						! Trap return
-3:	rdpr		%pstate, %g4			! Move into alternate globals
+3:	rdpr		%pstate, %g4			! Move into alt-globals
-
-/* ITLB ** ICACHE line 2: Real faults			*/
 	wrpr		%g4, PSTATE_AG|PSTATE_MG, %pstate
 	rdpr		%tpc, %g5			! And load faulting VA
 	mov		FAULT_CODE_ITLB, %g4		! It was read from ITLB
-sparc64_realfault_common:				! Called by TL0 dtlb_miss too
+
+/* ITLB ** ICACHE line 3: Finish faults	*/
+sparc64_realfault_common:				! Called by dtlb_miss
 	stb		%g4, [%g6 + TI_FAULT_CODE]
 	stx		%g5, [%g6 + TI_FAULT_ADDR]
 	ba,pt		%xcc, etrap			! Save state
 1:	 rd		%pc, %g7			! ...
-	nop
-
-/* ITLB ** ICACHE line 3: Finish faults + window fixups	*/
 	call		do_sparc64_fault		! Call fault handler
 	 add		%sp, PTREGS_OFF, %o0! Compute pt_regs arg
 	ba,pt		%xcc, rtrap_clr_l6		! Restore cpu state
 	 nop
+
+/* ITLB ** ICACHE line 4: Window fixups */
 winfix_trampoline:
 	rdpr		%tpc, %g3			! Prepare winfixup TNPC
-	or		%g3, 0x7c, %g3			! Compute offset to branch
+	or		%g3, 0x7c, %g3			! Compute branch offset
 	wrpr		%g3, %tnpc			! Write it into TNPC
 	done						! Do it to it
-
-/* ITLB ** ICACHE line 4: Unused...	*/
 	nop
 	nop
 	nop
 	nop
-	CREATE_VPTE_NOP
 
 #undef CREATE_VPTE_OFFSET1
 #undef CREATE_VPTE_OFFSET2
-#undef CREATE_VPTE_NOP

arch/sparc64/kernel/ktlb.S

@@ -58,9 +58,6 @@ vpte_noent:
 	done
 
 vpte_insn_obp:
-	sethi		%hi(prom_pmd_phys), %g5
-	ldx		[%g5 + %lo(prom_pmd_phys)], %g5
-
 	/* Behave as if we are at TL0.  */
 	wrpr		%g0, 1, %tl
 	rdpr		%tpc, %g4	/* Find original faulting iaddr */
@@ -71,58 +68,57 @@ vpte_insn_obp:
 	mov		TLB_SFSR, %g1
 	stxa		%g4, [%g1 + %g1] ASI_IMMU
 
-	/* Get PMD offset.  */
+	sethi		%hi(prom_trans), %g5
-	srlx		%g4, 23, %g6
+	or		%g5, %lo(prom_trans), %g5
-	and		%g6, 0x7ff, %g6
-	sllx		%g6, 2, %g6
 
-	/* Load PMD, is it valid?  */
+1:	ldx		[%g5 + 0x00], %g6	! base
-	lduwa		[%g5 + %g6] ASI_PHYS_USE_EC, %g5
+	brz,a,pn	%g6, longpath		! no more entries, fail
-	brz,pn		%g5, longpath
+	 mov		TLB_SFSR, %g1		! and restore %g1
-	 sllx		%g5, 11, %g5
+	ldx		[%g5 + 0x08], %g1	! len
+	add		%g6, %g1, %g1		! end
+	cmp		%g6, %g4
+	bgu,pt		%xcc, 2f
+	 cmp		%g4, %g1
+	bgeu,pt		%xcc, 2f
+	 ldx		[%g5 + 0x10], %g1	! PTE
 
-	/* Get PTE offset.  */
+	/* TLB load, restore %g1, and return from trap.  */
-	srlx		%g4, 13, %g6
+	sub		%g4, %g6, %g6
-	and		%g6, 0x3ff, %g6
+	add		%g1, %g6, %g5
-	sllx		%g6, 3, %g6
+	mov		TLB_SFSR, %g1
-
-	/* Load PTE.  */
-	ldxa		[%g5 + %g6] ASI_PHYS_USE_EC, %g5
-	brgez,pn	%g5, longpath
-	 nop
-
-	/* TLB load and return from trap.  */
 	stxa		%g5, [%g0] ASI_ITLB_DATA_IN
 	retry
 
+2:	ba,pt		%xcc, 1b
+	 add		%g5, (3 * 8), %g5	! next entry
+
 kvmap_do_obp:
-	sethi		%hi(prom_pmd_phys), %g5
+	sethi		%hi(prom_trans), %g5
-	ldx		[%g5 + %lo(prom_pmd_phys)], %g5
+	or		%g5, %lo(prom_trans), %g5
+	srlx		%g4, 13, %g4
+	sllx		%g4, 13, %g4
 
-	/* Get PMD offset.  */
+1:	ldx		[%g5 + 0x00], %g6	! base
-	srlx		%g4, 23, %g6
+	brz,a,pn	%g6, longpath		! no more entries, fail
-	and		%g6, 0x7ff, %g6
+	 mov		TLB_SFSR, %g1		! and restore %g1
-	sllx		%g6, 2, %g6
+	ldx		[%g5 + 0x08], %g1	! len
+	add		%g6, %g1, %g1		! end
+	cmp		%g6, %g4
+	bgu,pt		%xcc, 2f
+	 cmp		%g4, %g1
+	bgeu,pt		%xcc, 2f
+	 ldx		[%g5 + 0x10], %g1	! PTE
 
-	/* Load PMD, is it valid?  */
+	/* TLB load, restore %g1, and return from trap.  */
-	lduwa		[%g5 + %g6] ASI_PHYS_USE_EC, %g5
+	sub		%g4, %g6, %g6
-	brz,pn		%g5, longpath
+	add		%g1, %g6, %g5
-	 sllx		%g5, 11, %g5
+	mov		TLB_SFSR, %g1
-
-	/* Get PTE offset.  */
-	srlx		%g4, 13, %g6
-	and		%g6, 0x3ff, %g6
-	sllx		%g6, 3, %g6
-
-	/* Load PTE.  */
-	ldxa		[%g5 + %g6] ASI_PHYS_USE_EC, %g5
-	brgez,pn	%g5, longpath
-	 nop
-
-	/* TLB load and return from trap.  */
 	stxa		%g5, [%g0] ASI_DTLB_DATA_IN
 	retry
 
+2:	ba,pt		%xcc, 1b
+	 add		%g5, (3 * 8), %g5	! next entry
+
 /*
  * On a first level data miss, check whether this is to the OBP range (note
  * that such accesses can be made by prom, as well as by kernel using

arch/sparc64/mm/init.c

@@ -367,8 +367,11 @@ struct linux_prom_translation {
 	unsigned long size;
 	unsigned long data;
 };
-static struct linux_prom_translation prom_trans[512] __initdata;
+
-static unsigned int prom_trans_ents __initdata;
+/* Exported for kernel TLB miss handling in ktlb.S */
+struct linux_prom_translation prom_trans[512] __read_mostly;
+unsigned int prom_trans_ents __read_mostly;
+unsigned int swapper_pgd_zero __read_mostly;
 
 extern unsigned long prom_boot_page;
 extern void prom_remap(unsigned long physpage, unsigned long virtpage, int mmu_ihandle);
@@ -378,122 +381,57 @@ extern void register_prom_callbacks(void);
 /* Exported for SMP bootup purposes. */
 unsigned long kern_locked_tte_data;
 
-/* Exported for kernel TLB miss handling in ktlb.S */
-unsigned long prom_pmd_phys __read_mostly;
-unsigned int swapper_pgd_zero __read_mostly;
-
-static pmd_t *prompmd __read_mostly;
-
-#define BASE_PAGE_SIZE 8192
-
 /*
  * Translate PROM's mapping we capture at boot time into physical address.
  * The second parameter is only set from prom_callback() invocations.
  */
 unsigned long prom_virt_to_phys(unsigned long promva, int *error)
 {
-	pmd_t *pmdp = prompmd + ((promva >> 23) & 0x7ff);
+	int i;
-	pte_t *ptep;
+
-	unsigned long base;
+	for (i = 0; i < prom_trans_ents; i++) {
+		struct linux_prom_translation *p = &prom_trans[i];
+
+		if (promva >= p->virt &&
+		    promva < (p->virt + p->size)) {
+			unsigned long base = p->data & _PAGE_PADDR;
 
-	if (pmd_none(*pmdp)) {
 			if (error)
-			*error = 1;
-		return 0;
-	}
-	ptep = (pte_t *)__pmd_page(*pmdp) + ((promva >> 13) & 0x3ff);
-	if (!pte_present(*ptep)) {
-		if (error)
-			*error = 1;
-		return 0;
-	}
-	if (error) {
 				*error = 0;
-		return pte_val(*ptep);
+			return base + (promva & (8192 - 1));
 		}
-	base = pte_val(*ptep) & _PAGE_PADDR;
+	}
-
+	if (error)
-	return base + (promva & (BASE_PAGE_SIZE - 1));
+		*error = 1;
+	return 0UL;
 }
 
 /* The obp translations are saved based on 8k pagesize, since obp can
  * use a mixture of pagesizes. Misses to the LOW_OBP_ADDRESS ->
- * HI_OBP_ADDRESS range are handled in entry.S and do not use the vpte
+ * HI_OBP_ADDRESS range are handled in ktlb.S and do not use the vpte
  * scheme (also, see rant in inherit_locked_prom_mappings()).
  */
-static void __init build_obp_range(unsigned long start, unsigned long end, unsigned long data)
-{
-	unsigned long vaddr;
-
-	for (vaddr = start; vaddr < end; vaddr += BASE_PAGE_SIZE) {
-		unsigned long val;
-		pmd_t *pmd;
-		pte_t *pte;
-
-		pmd = prompmd + ((vaddr >> 23) & 0x7ff);
-		if (pmd_none(*pmd)) {
-			pte = __alloc_bootmem(BASE_PAGE_SIZE, BASE_PAGE_SIZE,
-					      PAGE_SIZE);
-			if (!pte)
-				prom_halt();
-			memset(pte, 0, BASE_PAGE_SIZE);
-			pmd_set(pmd, pte);
-		}
-		pte = (pte_t *) __pmd_page(*pmd) + ((vaddr >> 13) & 0x3ff);
-
-		val = data;
-
-		/* Clear diag TTE bits. */
-		if (tlb_type == spitfire)
-			val &= ~0x0003fe0000000000UL;
-
-		set_pte_at(&init_mm, vaddr, pte,
-			   __pte(val | _PAGE_MODIFIED));
-
-		data += BASE_PAGE_SIZE;
-	}
-}
-
 static inline int in_obp_range(unsigned long vaddr)
 {
 	return (vaddr >= LOW_OBP_ADDRESS &&
 		vaddr < HI_OBP_ADDRESS);
 }
 
-#define OBP_PMD_SIZE 2048
+static int cmp_ptrans(const void *a, const void *b)
-static void __init build_obp_pgtable(void)
 {
-	unsigned long i;
+	const struct linux_prom_translation *x = a, *y = b;
 
-	prompmd = __alloc_bootmem(OBP_PMD_SIZE, OBP_PMD_SIZE, PAGE_SIZE);
+	if (x->virt > y->virt)
-	if (!prompmd)
+		return 1;
-		prom_halt();
+	if (x->virt < y->virt)
-
+		return -1;
-	memset(prompmd, 0, OBP_PMD_SIZE);
+	return 0;
-
-	prom_pmd_phys = __pa(prompmd);
-
-	for (i = 0; i < prom_trans_ents; i++) {
-		unsigned long start, end;
-
-		if (!in_obp_range(prom_trans[i].virt))
-			continue;
-
-		start = prom_trans[i].virt;
-		end = start + prom_trans[i].size;
-		if (end > HI_OBP_ADDRESS)
-			end = HI_OBP_ADDRESS;
-
-		build_obp_range(start, end, prom_trans[i].data);
-	}
 }
 
-/* Read OBP translations property into 'prom_trans[]'.
+/* Read OBP translations property into 'prom_trans[]'.  */
- * Return the number of entries.
- */
 static void __init read_obp_translations(void)
 {
-	int n, node;
+	int n, node, ents, first, last, i;
 
 	node = prom_finddevice("/virtual-memory");
 	n = prom_getproplen(node, "translations");
@@ -515,7 +453,41 @@ static void __init read_obp_translations(void)
 
 	n = n / sizeof(struct linux_prom_translation);
 
-	prom_trans_ents = n;
+	ents = n;
+
+	sort(prom_trans, ents, sizeof(struct linux_prom_translation),
+	     cmp_ptrans, NULL);
+
+	/* Now kick out all the non-OBP entries.  */
+	for (i = 0; i < ents; i++) {
+		if (in_obp_range(prom_trans[i].virt))
+			break;
+	}
+	first = i;
+	for (; i < ents; i++) {
+		if (!in_obp_range(prom_trans[i].virt))
+			break;
+	}
+	last = i;
+
+	for (i = 0; i < (last - first); i++) {
+		struct linux_prom_translation *src = &prom_trans[i + first];
+		struct linux_prom_translation *dest = &prom_trans[i];
+
+		*dest = *src;
+	}
+	for (; i < ents; i++) {
+		struct linux_prom_translation *dest = &prom_trans[i];
+		dest->virt = dest->size = dest->data = 0x0UL;
+	}
+
+	prom_trans_ents = last - first;
+
+	if (tlb_type == spitfire) {
+		/* Clear diag TTE bits. */
+		for (i = 0; i < prom_trans_ents; i++)
+			prom_trans[i].data &= ~0x0003fe0000000000UL;
+	}
 }
 
 static void __init remap_kernel(void)
@@ -553,21 +525,18 @@ static void __init remap_kernel(void)
 }
 
 
-static void __init inherit_prom_mappings_pre(void)
+static void __init inherit_prom_mappings(void)
 {
 	read_obp_translations();
 
 	/* Now fixup OBP's idea about where we really are mapped. */
 	prom_printf("Remapping the kernel... ");
 	remap_kernel();
-
 	prom_printf("done.\n");
-}
 
-static void __init inherit_prom_mappings_post(void)
+	prom_printf("Registering callbacks... ");
-{
-	build_obp_pgtable();
 	register_prom_callbacks();
+	prom_printf("done.\n");
 }
 
 /* The OBP specifications for sun4u mark 0xfffffffc00000000 and
@@ -1519,7 +1488,7 @@ void __init paging_init(void)
 	
 	swapper_pgd_zero = pgd_val(swapper_pg_dir[0]);
 	
-	inherit_prom_mappings_pre();
+	inherit_prom_mappings();
 	
 	/* Ok, we can use our TLB miss and window trap handlers safely.
 	 * We need to do a quick peek here to see if we are on StarFire
@@ -1530,23 +1499,15 @@ void __init paging_init(void)
 		extern void setup_tba(int);
 		setup_tba(this_is_starfire);
 	}
-	__flush_tlb_all();
 
-	/* Everything from this point forward, until we are done with
+	inherit_locked_prom_mappings(1);
-	 * inherit_prom_mappings_post(), must complete successfully
+
-	 * without calling into the firmware.  The firwmare page tables
+	__flush_tlb_all();
-	 * have not been built, but we are running on the Linux kernel's
-	 * trap table.
-	 */
 
 	/* Setup bootmem... */
 	pages_avail = 0;
 	last_valid_pfn = end_pfn = bootmem_init(&pages_avail);
 
-	inherit_prom_mappings_post();
-
-	inherit_locked_prom_mappings(1);
-
 #ifdef CONFIG_DEBUG_PAGEALLOC
 	kernel_physical_mapping_init();
 #endif

arch/um/drivers/Makefile

@@ -13,7 +13,7 @@ mcast-objs := mcast_kern.o mcast_user.o
 net-objs := net_kern.o net_user.o
 mconsole-objs := mconsole_kern.o mconsole_user.o
 hostaudio-objs := hostaudio_kern.o
-ubd-objs := ubd_kern.o
+ubd-objs := ubd_kern.o ubd_user.o
 port-objs := port_kern.o port_user.o
 harddog-objs := harddog_kern.o harddog_user.o
 

arch/um/drivers/ubd_kern.c

@@ -35,7 +35,6 @@
 #include "linux/blkpg.h"
 #include "linux/genhd.h"
 #include "linux/spinlock.h"
-#include "asm/atomic.h"
 #include "asm/segment.h"
 #include "asm/uaccess.h"
 #include "asm/irq.h"
@@ -54,21 +53,20 @@
 #include "mem.h"
 #include "mem_kern.h"
 #include "cow.h"
-#include "aio.h"
 
 enum ubd_req { UBD_READ, UBD_WRITE };
 
 struct io_thread_req {
-	enum aio_type op;
+	enum ubd_req op;
 	int fds[2];
 	unsigned long offsets[2];
 	unsigned long long offset;
 	unsigned long length;
 	char *buffer;
 	int sectorsize;
-	int bitmap_offset;
+	unsigned long sector_mask;
-	long bitmap_start;
+	unsigned long long cow_offset;
-	long bitmap_end;
+	unsigned long bitmap_words[2];
 	int error;
 };
 
@@ -82,31 +80,28 @@ extern int create_cow_file(char *cow_file, char *backing_file,
 			   unsigned long *bitmap_len_out,
 			   int *data_offset_out);
 extern int read_cow_bitmap(int fd, void *buf, int offset, int len);
-extern void do_io(struct io_thread_req *req, struct request *r,
+extern void do_io(struct io_thread_req *req);
-		  unsigned long *bitmap);
 
-static inline int ubd_test_bit(__u64 bit, void *data)
+static inline int ubd_test_bit(__u64 bit, unsigned char *data)
 {
-	unsigned char *buffer = data;
 	__u64 n;
 	int bits, off;
 
-	bits = sizeof(buffer[0]) * 8;
+	bits = sizeof(data[0]) * 8;
 	n = bit / bits;
 	off = bit % bits;
-	return((buffer[n] & (1 << off)) != 0);
+	return((data[n] & (1 << off)) != 0);
 }
 
-static inline void ubd_set_bit(__u64 bit, void *data)
+static inline void ubd_set_bit(__u64 bit, unsigned char *data)
 {
-	unsigned char *buffer = data;
 	__u64 n;
 	int bits, off;
 
-	bits = sizeof(buffer[0]) * 8;
+	bits = sizeof(data[0]) * 8;
 	n = bit / bits;
 	off = bit % bits;
-	buffer[n] |= (1 << off);
+	data[n] |= (1 << off);
 }
 /*End stuff from ubd_user.h*/
 
@@ -115,6 +110,8 @@ static inline void ubd_set_bit(__u64 bit, void *data)
 static DEFINE_SPINLOCK(ubd_io_lock);
 static DEFINE_SPINLOCK(ubd_lock);
 
+static void (*do_ubd)(void);
+
 static int ubd_open(struct inode * inode, struct file * filp);
 static int ubd_release(struct inode * inode, struct file * file);
 static int ubd_ioctl(struct inode * inode, struct file * file,
@@ -161,8 +158,6 @@ struct cow {
         int data_offset;
 };
 
-#define MAX_SG 64
-
 struct ubd {
 	char *file;
 	int count;
@@ -173,7 +168,6 @@ struct ubd {
 	int no_cow;
 	struct cow cow;
 	struct platform_device pdev;
-        struct scatterlist sg[MAX_SG];
 };
 
 #define DEFAULT_COW { \
@@ -466,114 +460,81 @@ __uml_help(fakehd,
 );
 
 static void do_ubd_request(request_queue_t * q);
-static int in_ubd;
+
+/* Only changed by ubd_init, which is an initcall. */
+int thread_fd = -1;
 
 /* Changed by ubd_handler, which is serialized because interrupts only
  * happen on CPU 0.
  */
 int intr_count = 0;
 
-static void ubd_end_request(struct request *req, int bytes, int uptodate)
-{
-	if (!end_that_request_first(req, uptodate, bytes >> 9)) {
-		add_disk_randomness(req->rq_disk);
-		end_that_request_last(req);
-	}
-}
-
 /* call ubd_finish if you need to serialize */
-static void __ubd_finish(struct request *req, int bytes)
+static void __ubd_finish(struct request *req, int error)
 {
-	if(bytes < 0){
+	int nsect;
-		ubd_end_request(req, 0, 0);
+
+	if(error){
+		end_request(req, 0);
 		return;
 	}
-
+	nsect = req->current_nr_sectors;
-	ubd_end_request(req, bytes, 1);
+	req->sector += nsect;
+	req->buffer += nsect << 9;
+	req->errors = 0;
+	req->nr_sectors -= nsect;
+	req->current_nr_sectors = 0;
+	end_request(req, 1);
 }
 
-static inline void ubd_finish(struct request *req, int bytes)
+static inline void ubd_finish(struct request *req, int error)
 {
  	spin_lock(&ubd_io_lock);
-	__ubd_finish(req, bytes);
+	__ubd_finish(req, error);
 	spin_unlock(&ubd_io_lock);
 }
 
-struct bitmap_io {
+/* Called without ubd_io_lock held */
-        atomic_t count;
+static void ubd_handler(void)
-        struct aio_context aio;
+{
-};
+	struct io_thread_req req;
+	struct request *rq = elv_next_request(ubd_queue);
+	int n;
 
-struct ubd_aio {
+	do_ubd = NULL;
-        struct aio_context aio;
+	intr_count++;
-        struct request *req;
+	n = os_read_file(thread_fd, &req, sizeof(req));
-        int len;
+	if(n != sizeof(req)){
-        struct bitmap_io *bitmap;
+		printk(KERN_ERR "Pid %d - spurious interrupt in ubd_handler, "
-        void *bitmap_buf;
+		       "err = %d\n", os_getpid(), -n);
-};
+		spin_lock(&ubd_io_lock);
+		end_request(rq, 0);
+		spin_unlock(&ubd_io_lock);
+		return;
+	}
         
-static int ubd_reply_fd = -1;
+	ubd_finish(rq, req.error);
+	reactivate_fd(thread_fd, UBD_IRQ);	
+	do_ubd_request(ubd_queue);
+}
 
 static irqreturn_t ubd_intr(int irq, void *dev, struct pt_regs *unused)
 {
-	struct aio_thread_reply reply;
+	ubd_handler();
-	struct ubd_aio *aio;
-	struct request *req;
-	int err, n, fd = (int) (long) dev;
-
-	while(1){
-		err = os_read_file(fd, &reply, sizeof(reply));
-		if(err == -EAGAIN)
-			break;
-		if(err < 0){
-			printk("ubd_aio_handler - read returned err %d\n",
-			       -err);
-			break;
-		}
-
-                aio = container_of(reply.data, struct ubd_aio, aio);
-                n = reply.err;
-
-		if(n == 0){
-			req = aio->req;
-			req->nr_sectors -= aio->len >> 9;
-
-			if((aio->bitmap != NULL) &&
-			   (atomic_dec_and_test(&aio->bitmap->count))){
-                                aio->aio = aio->bitmap->aio;
-                                aio->len = 0;
-                                kfree(aio->bitmap);
-                                aio->bitmap = NULL;
-                                submit_aio(&aio->aio);
-			}
-			else {
-				if((req->nr_sectors == 0) &&
-                                   (aio->bitmap == NULL)){
-					int len = req->hard_nr_sectors << 9;
-					ubd_finish(req, len);
-				}
-
-                                if(aio->bitmap_buf != NULL)
-                                        kfree(aio->bitmap_buf);
-				kfree(aio);
-			}
-		}
-                else if(n < 0){
-                        ubd_finish(aio->req, n);
-                        if(aio->bitmap != NULL)
-                                kfree(aio->bitmap);
-                        if(aio->bitmap_buf != NULL)
-                                kfree(aio->bitmap_buf);
-                        kfree(aio);
-                }
-	}
-	reactivate_fd(fd, UBD_IRQ);
-
-        do_ubd_request(ubd_queue);
-
 	return(IRQ_HANDLED);
 }
 
+/* Only changed by ubd_init, which is an initcall. */
+static int io_pid = -1;
+
+void kill_io_thread(void)
+{
+	if(io_pid != -1) 
+		os_kill_process(io_pid, 1);
+}
+
+__uml_exitcall(kill_io_thread);
+
 static int ubd_file_size(struct ubd *dev, __u64 *size_out)
 {
 	char *file;
@@ -870,10 +831,6 @@ int ubd_init(void)
 {
         int i;
 
-	ubd_reply_fd = init_aio_irq(UBD_IRQ, "ubd", ubd_intr);
-	if(ubd_reply_fd < 0)
-		printk("Setting up ubd AIO failed, err = %d\n", ubd_reply_fd);
-
 	devfs_mk_dir("ubd");
 	if (register_blkdev(MAJOR_NR, "ubd"))
 		return -1;
@@ -884,7 +841,6 @@ int ubd_init(void)
 		return -1;
 	}
 		
-	blk_queue_max_hw_segments(ubd_queue, MAX_SG);
 	if (fake_major != MAJOR_NR) {
 		char name[sizeof("ubd_nnn\0")];
 
@@ -896,12 +852,40 @@ int ubd_init(void)
 	driver_register(&ubd_driver);
 	for (i = 0; i < MAX_DEV; i++) 
 		ubd_add(i);
-
 	return 0;
 }
 
 late_initcall(ubd_init);
 
+int ubd_driver_init(void){
+	unsigned long stack;
+	int err;
+
+	/* Set by CONFIG_BLK_DEV_UBD_SYNC or ubd=sync.*/
+	if(global_openflags.s){
+		printk(KERN_INFO "ubd: Synchronous mode\n");
+		/* Letting ubd=sync be like using ubd#s= instead of ubd#= is
+		 * enough. So use anyway the io thread. */
+	}
+	stack = alloc_stack(0, 0);
+	io_pid = start_io_thread(stack + PAGE_SIZE - sizeof(void *), 
+				 &thread_fd);
+	if(io_pid < 0){
+		printk(KERN_ERR 
+		       "ubd : Failed to start I/O thread (errno = %d) - "
+		       "falling back to synchronous I/O\n", -io_pid);
+		io_pid = -1;
+		return(0);
+	}
+	err = um_request_irq(UBD_IRQ, thread_fd, IRQ_READ, ubd_intr, 
+			     SA_INTERRUPT, "ubd", ubd_dev);
+	if(err != 0)
+		printk(KERN_ERR "um_request_irq failed - errno = %d\n", -err);
+	return(err);
+}
+
+device_initcall(ubd_driver_init);
+
 static int ubd_open(struct inode *inode, struct file *filp)
 {
 	struct gendisk *disk = inode->i_bdev->bd_disk;
@@ -939,55 +923,105 @@ static int ubd_release(struct inode * inode, struct file * file)
 	return(0);
 }
 
-static void cowify_bitmap(struct io_thread_req *req, unsigned long *bitmap)
+static void cowify_bitmap(__u64 io_offset, int length, unsigned long *cow_mask,
+			  __u64 *cow_offset, unsigned long *bitmap,
+			  __u64 bitmap_offset, unsigned long *bitmap_words,
+			  __u64 bitmap_len)
 {
-        __u64 sector = req->offset / req->sectorsize;
+	__u64 sector = io_offset >> 9;
-        int i;
+	int i, update_bitmap = 0;
 
-        for(i = 0; i < req->length / req->sectorsize; i++){
+	for(i = 0; i < length >> 9; i++){
-                if(ubd_test_bit(sector + i, bitmap))
+		if(cow_mask != NULL)
+			ubd_set_bit(i, (unsigned char *) cow_mask);
+		if(ubd_test_bit(sector + i, (unsigned char *) bitmap))
 			continue;
 
-                if(req->bitmap_start == -1)
+		update_bitmap = 1;
-                        req->bitmap_start = sector + i;
+		ubd_set_bit(sector + i, (unsigned char *) bitmap);
-                req->bitmap_end = sector + i + 1;
-
-                ubd_set_bit(sector + i, bitmap);
 	}
+
+	if(!update_bitmap)
+		return;
+
+	*cow_offset = sector / (sizeof(unsigned long) * 8);
+
+	/* This takes care of the case where we're exactly at the end of the
+	 * device, and *cow_offset + 1 is off the end.  So, just back it up
+	 * by one word.  Thanks to Lynn Kerby for the fix and James McMechan
+	 * for the original diagnosis.
+	 */
+	if(*cow_offset == ((bitmap_len + sizeof(unsigned long) - 1) /
+			   sizeof(unsigned long) - 1))
+		(*cow_offset)--;
+
+	bitmap_words[0] = bitmap[*cow_offset];
+	bitmap_words[1] = bitmap[*cow_offset + 1];
+
+	*cow_offset *= sizeof(unsigned long);
+	*cow_offset += bitmap_offset;
+}
+
+static void cowify_req(struct io_thread_req *req, unsigned long *bitmap,
+		       __u64 bitmap_offset, __u64 bitmap_len)
+{
+	__u64 sector = req->offset >> 9;
+	int i;
+
+	if(req->length > (sizeof(req->sector_mask) * 8) << 9)
+		panic("Operation too long");
+
+	if(req->op == UBD_READ) {
+		for(i = 0; i < req->length >> 9; i++){
+			if(ubd_test_bit(sector + i, (unsigned char *) bitmap))
+				ubd_set_bit(i, (unsigned char *) 
+					    &req->sector_mask);
+                }
+	}
+	else cowify_bitmap(req->offset, req->length, &req->sector_mask,
+			   &req->cow_offset, bitmap, bitmap_offset,
+			   req->bitmap_words, bitmap_len);
 }
 
 /* Called with ubd_io_lock held */
-static int prepare_request(struct request *req, struct io_thread_req *io_req,
+static int prepare_request(struct request *req, struct io_thread_req *io_req)
-                           unsigned long long offset, int page_offset,
-                           int len, struct page *page)
 {
 	struct gendisk *disk = req->rq_disk;
 	struct ubd *dev = disk->private_data;
+	__u64 offset;
+	int len;
+
+	if(req->rq_status == RQ_INACTIVE) return(1);
 
 	/* This should be impossible now */
 	if((rq_data_dir(req) == WRITE) && !dev->openflags.w){
 		printk("Write attempted on readonly ubd device %s\n", 
 		       disk->disk_name);
-                ubd_end_request(req, 0, 0);
+		end_request(req, 0);
 		return(1);
 	}
 
+	offset = ((__u64) req->sector) << 9;
+	len = req->current_nr_sectors << 9;
+
 	io_req->fds[0] = (dev->cow.file != NULL) ? dev->cow.fd : dev->fd;
 	io_req->fds[1] = dev->fd;
+	io_req->cow_offset = -1;
 	io_req->offset = offset;
 	io_req->length = len;
 	io_req->error = 0;
-	io_req->op = (rq_data_dir(req) == READ) ? AIO_READ : AIO_WRITE;
+	io_req->sector_mask = 0;
+
+	io_req->op = (rq_data_dir(req) == READ) ? UBD_READ : UBD_WRITE;
 	io_req->offsets[0] = 0;
 	io_req->offsets[1] = dev->cow.data_offset;
-        io_req->buffer = page_address(page) + page_offset;
+	io_req->buffer = req->buffer;
 	io_req->sectorsize = 1 << 9;
-        io_req->bitmap_offset = dev->cow.bitmap_offset;
-        io_req->bitmap_start = -1;
-        io_req->bitmap_end = -1;
 
-        if((dev->cow.file != NULL) && (io_req->op == UBD_WRITE))
+	if(dev->cow.file != NULL)
-                cowify_bitmap(io_req, dev->cow.bitmap);
+		cowify_req(io_req, dev->cow.bitmap, dev->cow.bitmap_offset,
+			   dev->cow.bitmap_len);
+
 	return(0);
 }
 
@@ -996,36 +1030,30 @@ static void do_ubd_request(request_queue_t *q)
 {
 	struct io_thread_req io_req;
 	struct request *req;
-	__u64 sector;
+	int err, n;
-	int err;
 
-	if(in_ubd)
+	if(thread_fd == -1){
-		return;
-	in_ubd = 1;
 		while((req = elv_next_request(q)) != NULL){
-		struct gendisk *disk = req->rq_disk;
+			err = prepare_request(req, &io_req);
-		struct ubd *dev = disk->private_data;
+			if(!err){
-		int n, i;
+				do_io(&io_req);
-
+				__ubd_finish(req, io_req.error);
-		blkdev_dequeue_request(req);
+			}
-
+		}
-		sector = req->sector;
+	}
-		n = blk_rq_map_sg(q, req, dev->sg);
+	else {
-
+		if(do_ubd || (req = elv_next_request(q)) == NULL)
-		for(i = 0; i < n; i++){
+			return;
-			struct scatterlist *sg = &dev->sg[i];
+		err = prepare_request(req, &io_req);
-
+		if(!err){
-			err = prepare_request(req, &io_req, sector << 9,
+			do_ubd = ubd_handler;
-					      sg->offset, sg->length,
+			n = os_write_file(thread_fd, (char *) &io_req,
-					      sg->page);
+					 sizeof(io_req));
-			if(err)
+			if(n != sizeof(io_req))
-				continue;
+				printk("write to io thread failed, "
-
+				       "errno = %d\n", -n);
-			sector += sg->length >> 9;
-			do_io(&io_req, req, dev->cow.bitmap);
 		}
 	}
-	in_ubd = 0;
 }
 
 static int ubd_ioctl(struct inode * inode, struct file * file,
@@ -1241,95 +1269,131 @@ int create_cow_file(char *cow_file, char *backing_file, struct openflags flags,
 	return(err);
 }
 
-void do_io(struct io_thread_req *req, struct request *r, unsigned long *bitmap)
+static int update_bitmap(struct io_thread_req *req)
+{
+	int n;
+
+	if(req->cow_offset == -1)
+		return(0);
+
+	n = os_seek_file(req->fds[1], req->cow_offset);
+	if(n < 0){
+		printk("do_io - bitmap lseek failed : err = %d\n", -n);
+		return(1);
+	}
+
+	n = os_write_file(req->fds[1], &req->bitmap_words,
+		          sizeof(req->bitmap_words));
+	if(n != sizeof(req->bitmap_words)){
+		printk("do_io - bitmap update failed, err = %d fd = %d\n", -n,
+		       req->fds[1]);
+		return(1);
+	}
+
+	return(0);
+}
+
+void do_io(struct io_thread_req *req)
 {
-        struct ubd_aio *aio;
-        struct bitmap_io *bitmap_io = NULL;
 	char *buf;
-        void *bitmap_buf = NULL;
+	unsigned long len;
-        unsigned long len, sector;
+	int n, nsectors, start, end, bit;
-        int nsectors, start, end, bit, err;
+	int err;
 	__u64 off;
 
-        if(req->bitmap_start != -1){
-                /* Round up to the nearest word */
-                int round = sizeof(unsigned long);
-                len = (req->bitmap_end - req->bitmap_start +
-                       round * 8 - 1) / (round * 8);
-                len *= round;
-
-                off = req->bitmap_start / (8 * round);
-                off *= round;
-
-                bitmap_io = kmalloc(sizeof(*bitmap_io), GFP_KERNEL);
-                if(bitmap_io == NULL){
-                        printk("Failed to kmalloc bitmap IO\n");
-                        req->error = 1;
-                        return;
-                }
-
-                bitmap_buf = kmalloc(len, GFP_KERNEL);
-                if(bitmap_buf == NULL){
-                        printk("do_io : kmalloc of bitmap chunk "
-                               "failed\n");
-                        kfree(bitmap_io);
-                        req->error = 1;
-                        return;
-                }
-                memcpy(bitmap_buf, &bitmap[off / sizeof(bitmap[0])], len);
-
-                *bitmap_io = ((struct bitmap_io)
-                        { .count	= ATOMIC_INIT(0),
-                          .aio		= INIT_AIO(AIO_WRITE, req->fds[1],
-                                                   bitmap_buf, len,
-                                                   req->bitmap_offset + off,
-                                                   ubd_reply_fd) } );
-        }
-
 	nsectors = req->length / req->sectorsize;
 	start = 0;
-        end = nsectors;
-        bit = 0;
 	do {
-                if(bitmap != NULL){
+		bit = ubd_test_bit(start, (unsigned char *) &req->sector_mask);
-                        sector = req->offset / req->sectorsize;
-                        bit = ubd_test_bit(sector + start, bitmap);
 		end = start;
 		while((end < nsectors) &&
-                              (ubd_test_bit(sector + end, bitmap) == bit))
+		      (ubd_test_bit(end, (unsigned char *)
+				    &req->sector_mask) == bit))
 			end++;
-                }
 
-                off = req->offsets[bit] + req->offset +
+		off = req->offset + req->offsets[bit] +
 			start * req->sectorsize;
 		len = (end - start) * req->sectorsize;
 		buf = &req->buffer[start * req->sectorsize];
 
-                aio = kmalloc(sizeof(*aio), GFP_KERNEL);
+		err = os_seek_file(req->fds[bit], off);
-                if(aio == NULL){
+		if(err < 0){
+			printk("do_io - lseek failed : err = %d\n", -err);
 			req->error = 1;
 			return;
 		}
-
+		if(req->op == UBD_READ){
-                *aio = ((struct ubd_aio)
+			n = 0;
-                        { .aio		= INIT_AIO(req->op, req->fds[bit], buf,
+			do {
-                                                   len, off, ubd_reply_fd),
+				buf = &buf[n];
-                          .len		= len,
+				len -= n;
-                          .req		= r,
+				n = os_read_file(req->fds[bit], buf, len);
-                          .bitmap	= bitmap_io,
+				if (n < 0) {
-                          .bitmap_buf 	= bitmap_buf });
+					printk("do_io - read failed, err = %d "
-
+					       "fd = %d\n", -n, req->fds[bit]);
-                if(aio->bitmap != NULL)
-                        atomic_inc(&aio->bitmap->count);
-
-                err = submit_aio(&aio->aio);
-                if(err){
-                        printk("do_io - submit_aio failed, "
-                               "err = %d\n", err);
 					req->error = 1;
 					return;
 				}
+			} while((n < len) && (n != 0));
+			if (n < len) memset(&buf[n], 0, len - n);
+		} else {
+			n = os_write_file(req->fds[bit], buf, len);
+			if(n != len){
+				printk("do_io - write failed err = %d "
+				       "fd = %d\n", -n, req->fds[bit]);
+				req->error = 1;
+				return;
+			}
+		}
 
 		start = end;
 	} while(start < nsectors);
+
+	req->error = update_bitmap(req);
 }
+
+/* Changed in start_io_thread, which is serialized by being called only
+ * from ubd_init, which is an initcall.
+ */
+int kernel_fd = -1;
+
+/* Only changed by the io thread */
+int io_count = 0;
+
+int io_thread(void *arg)
+{
+	struct io_thread_req req;
+	int n;
+
+	ignore_sigwinch_sig();
+	while(1){
+		n = os_read_file(kernel_fd, &req, sizeof(req));
+		if(n != sizeof(req)){
+			if(n < 0)
+				printk("io_thread - read failed, fd = %d, "
+				       "err = %d\n", kernel_fd, -n);
+			else {
+				printk("io_thread - short read, fd = %d, "
+				       "length = %d\n", kernel_fd, n);
+			}
+			continue;
+		}
+		io_count++;
+		do_io(&req);
+		n = os_write_file(kernel_fd, &req, sizeof(req));
+		if(n != sizeof(req))
+			printk("io_thread - write failed, fd = %d, err = %d\n",
+			       kernel_fd, -n);
+	}
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */

arch/um/drivers/ubd_user.c

@@ -0,0 +1,75 @@
+/* 
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2001 Ridgerun,Inc (glonnon@ridgerun.com)
+ * Licensed under the GPL
+ */
+
+#include <stddef.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sched.h>
+#include <signal.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <sys/mman.h>
+#include <sys/param.h>
+#include "asm/types.h"
+#include "user_util.h"
+#include "kern_util.h"
+#include "user.h"
+#include "ubd_user.h"
+#include "os.h"
+#include "cow.h"
+
+#include <endian.h>
+#include <byteswap.h>
+
+void ignore_sigwinch_sig(void)
+{
+	signal(SIGWINCH, SIG_IGN);
+}
+
+int start_io_thread(unsigned long sp, int *fd_out)
+{
+	int pid, fds[2], err;
+
+	err = os_pipe(fds, 1, 1);
+	if(err < 0){
+		printk("start_io_thread - os_pipe failed, err = %d\n", -err);
+		goto out;
+	}
+
+	kernel_fd = fds[0];
+	*fd_out = fds[1];
+
+	pid = clone(io_thread, (void *) sp, CLONE_FILES | CLONE_VM | SIGCHLD,
+		    NULL);
+	if(pid < 0){
+		printk("start_io_thread - clone failed : errno = %d\n", errno);
+		err = -errno;
+		goto out_close;
+	}
+
+	return(pid);
+
+ out_close:
+	os_close_file(fds[0]);
+	os_close_file(fds[1]);
+	kernel_fd = -1;
+	*fd_out = -1;
+ out:
+	return(err);
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */

arch/um/include/aio.h

@@ -14,27 +14,15 @@ struct aio_thread_reply {
 };
 
 struct aio_context {
-	enum aio_type type;
-	int fd;
-	void *data;
-	int len;
-	unsigned long long offset;
 	int reply_fd;
 	struct aio_context *next;
 };
 
-#define INIT_AIO(aio_type, aio_fd, aio_data, aio_len, aio_offset, \
-		 aio_reply_fd) \
-	{ .type 	= aio_type, \
-	  .fd		= aio_fd, \
-	  .data		= aio_data, \
-	  .len		= aio_len, \
-	  .offset	= aio_offset, \
-	  .reply_fd	= aio_reply_fd }
-
 #define INIT_AIO_CONTEXT { .reply_fd	= -1, \
 			   .next	= NULL }
 
-extern int submit_aio(struct aio_context *aio);
+extern int submit_aio(enum aio_type type, int fd, char *buf, int len,
+		      unsigned long long offset, int reply_fd,
+                      struct aio_context *aio);
 
 #endif

arch/um/include/os.h

@@ -6,6 +6,7 @@
 #ifndef __OS_H__
 #define __OS_H__
 
+#include "uml-config.h"
 #include "asm/types.h"
 #include "../os/include/file.h"
 
@@ -159,7 +160,11 @@ extern int can_do_skas(void);
 
 /* Make sure they are clear when running in TT mode. Required by
  * SEGV_MAYBE_FIXABLE */
+#ifdef UML_CONFIG_MODE_SKAS
 #define clear_can_do_skas() do { ptrace_faultinfo = proc_mm = 0; } while (0)
+#else
+#define clear_can_do_skas() do {} while (0)
+#endif
 
 /* mem.c */
 extern int create_mem_file(unsigned long len);

arch/um/os-Linux/aio.c

@@ -6,7 +6,6 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <signal.h>
-#include <string.h>
 #include <errno.h>
 #include <sched.h>
 #include <sys/syscall.h>
@@ -17,31 +16,18 @@
 #include "user.h"
 #include "mode.h"
 
+struct aio_thread_req {
+        enum aio_type type;
+        int io_fd;
+        unsigned long long offset;
+        char *buf;
+        int len;
+        struct aio_context *aio;
+};
+
 static int aio_req_fd_r = -1;
 static int aio_req_fd_w = -1;
 
-static int update_aio(struct aio_context *aio, int res)
-{
-        if(res < 0)
-                aio->len = res;
-        else if((res == 0) && (aio->type == AIO_READ)){
-                /* This is the EOF case - we have hit the end of the file
-                 * and it ends in a partial block, so we fill the end of
-                 * the block with zeros and claim success.
-                 */
-                memset(aio->data, 0, aio->len);
-                aio->len = 0;
-        }
-        else if(res > 0){
-                aio->len -= res;
-                aio->data += res;
-                aio->offset += res;
-                return aio->len;
-        }
-
-        return 0;
-}
-
 #if defined(HAVE_AIO_ABI)
 #include <linux/aio_abi.h>
 
@@ -80,7 +66,8 @@ static long io_getevents(aio_context_t ctx_id, long min_nr, long nr,
  * that it now backs the mmapped area.
  */
 
-static int do_aio(aio_context_t ctx, struct aio_context *aio)
+static int do_aio(aio_context_t ctx, enum aio_type type, int fd, char *buf,
+                  int len, unsigned long long offset, struct aio_context *aio)
 {
         struct iocb iocb, *iocbp = &iocb;
         char c;
@@ -88,39 +75,40 @@ static int do_aio(aio_context_t ctx, struct aio_context *aio)
 
         iocb = ((struct iocb) { .aio_data 	= (unsigned long) aio,
                                 .aio_reqprio	= 0,
-                                .aio_fildes	= aio->fd,
+                                .aio_fildes	= fd,
-                                .aio_buf	= (unsigned long) aio->data,
+                                .aio_buf	= (unsigned long) buf,
-                                .aio_nbytes	= aio->len,
+                                .aio_nbytes	= len,
-                                .aio_offset	= aio->offset,
+                                .aio_offset	= offset,
                                 .aio_reserved1	= 0,
                                 .aio_reserved2	= 0,
                                 .aio_reserved3	= 0 });
 
-        switch(aio->type){
+        switch(type){
         case AIO_READ:
                 iocb.aio_lio_opcode = IOCB_CMD_PREAD;
+                err = io_submit(ctx, 1, &iocbp);
                 break;
         case AIO_WRITE:
                 iocb.aio_lio_opcode = IOCB_CMD_PWRITE;
+                err = io_submit(ctx, 1, &iocbp);
                 break;
         case AIO_MMAP:
                 iocb.aio_lio_opcode = IOCB_CMD_PREAD;
                 iocb.aio_buf = (unsigned long) &c;
                 iocb.aio_nbytes = sizeof(c);
+                err = io_submit(ctx, 1, &iocbp);
                 break;
         default:
-                printk("Bogus op in do_aio - %d\n", aio->type);
+                printk("Bogus op in do_aio - %d\n", type);
                 err = -EINVAL;
-                goto out;
+                break;
         }
 
-        err = io_submit(ctx, 1, &iocbp);
         if(err > 0)
                 err = 0;
 	else
 		err = -errno;
 
- out:
         return err;
 }
 
@@ -129,9 +117,8 @@ static aio_context_t ctx = 0;
 static int aio_thread(void *arg)
 {
         struct aio_thread_reply reply;
-        struct aio_context *aio;
         struct io_event event;
-        int err, n;
+        int err, n, reply_fd;
 
         signal(SIGWINCH, SIG_IGN);
 
@@ -144,22 +131,14 @@ static int aio_thread(void *arg)
                                "errno = %d\n", errno);
                 }
                 else {
-			/* This is safe as we've just a pointer here. */
-			aio = (struct aio_context *) (long) event.data;
-			if(update_aio(aio, event.res)){
-				do_aio(ctx, aio);
-				continue;
-			}
-
                         reply = ((struct aio_thread_reply)
-				{ .data = aio,
+				 { .data = (void *) (long) event.data,
-				  .err	= aio->len });
+				   .err	= event.res });
-			err = os_write_file(aio->reply_fd, &reply,
+			reply_fd = ((struct aio_context *) reply.data)->reply_fd;
-					    sizeof(reply));
+			err = os_write_file(reply_fd, &reply, sizeof(reply));
                         if(err != sizeof(reply))
-				printk("aio_thread - write failed, "
+				printk("aio_thread - write failed, fd = %d, "
-				       "fd = %d, err = %d\n", aio->reply_fd,
+                                       "err = %d\n", aio_req_fd_r, -err);
-				       -err);
                 }
         }
         return 0;
@@ -167,35 +146,35 @@ static int aio_thread(void *arg)
 
 #endif
 
-static int do_not_aio(struct aio_context *aio)
+static int do_not_aio(struct aio_thread_req *req)
 {
         char c;
         int err;
 
-        switch(aio->type){
+        switch(req->type){
         case AIO_READ:
-                err = os_seek_file(aio->fd, aio->offset);
+                err = os_seek_file(req->io_fd, req->offset);
                 if(err)
                         goto out;
 
-                err = os_read_file(aio->fd, aio->data, aio->len);
+                err = os_read_file(req->io_fd, req->buf, req->len);
                 break;
         case AIO_WRITE:
-                err = os_seek_file(aio->fd, aio->offset);
+                err = os_seek_file(req->io_fd, req->offset);
                 if(err)
                         goto out;
 
-                err = os_write_file(aio->fd, aio->data, aio->len);
+                err = os_write_file(req->io_fd, req->buf, req->len);
                 break;
         case AIO_MMAP:
-                err = os_seek_file(aio->fd, aio->offset);
+                err = os_seek_file(req->io_fd, req->offset);
                 if(err)
                         goto out;
 
-                err = os_read_file(aio->fd, &c, sizeof(c));
+                err = os_read_file(req->io_fd, &c, sizeof(c));
                 break;
         default:
-                printk("do_not_aio - bad request type : %d\n", aio->type);
+                printk("do_not_aio - bad request type : %d\n", req->type);
                 err = -EINVAL;
                 break;
         }
@@ -206,14 +185,14 @@ static int do_not_aio(struct aio_context *aio)
 
 static int not_aio_thread(void *arg)
 {
-        struct aio_context *aio;
+        struct aio_thread_req req;
         struct aio_thread_reply reply;
         int err;
 
         signal(SIGWINCH, SIG_IGN);
         while(1){
-                err = os_read_file(aio_req_fd_r, &aio, sizeof(aio));
+                err = os_read_file(aio_req_fd_r, &req, sizeof(req));
-                if(err != sizeof(aio)){
+                if(err != sizeof(req)){
                         if(err < 0)
                                 printk("not_aio_thread - read failed, "
                                        "fd = %d, err = %d\n", aio_req_fd_r,
@@ -224,34 +203,17 @@ static int not_aio_thread(void *arg)
                         }
                         continue;
                 }
- again:
+                err = do_not_aio(&req);
-                err = do_not_aio(aio);
+                reply = ((struct aio_thread_reply) { .data 	= req.aio,
-
+                                                     .err	= err });
-                if(update_aio(aio, err))
+                err = os_write_file(req.aio->reply_fd, &reply, sizeof(reply));
-                        goto again;
-
-                reply = ((struct aio_thread_reply) { .data 	= aio,
-                                                     .err	= aio->len });
-                err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
                 if(err != sizeof(reply))
                         printk("not_aio_thread - write failed, fd = %d, "
                                "err = %d\n", aio_req_fd_r, -err);
         }
 }
 
-static int submit_aio_24(struct aio_context *aio)
-{
-        int err;
-
-        err = os_write_file(aio_req_fd_w, &aio, sizeof(aio));
-        if(err == sizeof(aio))
-                err = 0;
-
-        return err;
-}
-
 static int aio_pid = -1;
-static int (*submit_proc)(struct aio_context *aio);
 
 static int init_aio_24(void)
 {
@@ -283,33 +245,11 @@ static int init_aio_24(void)
 #endif
 	printk("2.6 host AIO support not used - falling back to I/O "
 	       "thread\n");
-
-	submit_proc = submit_aio_24;
-
         return 0;
 }
 
 #ifdef HAVE_AIO_ABI
 #define DEFAULT_24_AIO 0
-static int submit_aio_26(struct aio_context *aio)
-{
-	struct aio_thread_reply reply;
-	int err;
-
-	err = do_aio(ctx, aio);
-	if(err){
-		reply = ((struct aio_thread_reply) { .data = aio,
-					             .err  = err });
-		err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
-		if(err != sizeof(reply))
-			printk("submit_aio_26 - write failed, "
-			       "fd = %d, err = %d\n", aio->reply_fd, -err);
-		else err = 0;
-	}
-
-	return err;
-}
-
 static int init_aio_26(void)
 {
         unsigned long stack;
@@ -330,22 +270,39 @@ static int init_aio_26(void)
         aio_pid = err;
 
 	printk("Using 2.6 host AIO\n");
-
-	submit_proc = submit_aio_26;
-
         return 0;
 }
 
+static int submit_aio_26(enum aio_type type, int io_fd, char *buf, int len,
+			 unsigned long long offset, struct aio_context *aio)
+{
+        struct aio_thread_reply reply;
+        int err;
+
+        err = do_aio(ctx, type, io_fd, buf, len, offset, aio);
+        if(err){
+                reply = ((struct aio_thread_reply) { .data = aio,
+                                                     .err  = err });
+                err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
+                if(err != sizeof(reply))
+                        printk("submit_aio_26 - write failed, "
+                               "fd = %d, err = %d\n", aio->reply_fd, -err);
+                else err = 0;
+        }
+
+        return err;
+}
+
 #else
 #define DEFAULT_24_AIO 1
-static int submit_aio_26(struct aio_context *aio)
+static int init_aio_26(void)
 {
         return -ENOSYS;
 }
 
-static int init_aio_26(void)
+static int submit_aio_26(enum aio_type type, int io_fd, char *buf, int len,
+			 unsigned long long offset, struct aio_context *aio)
 {
-	submit_proc = submit_aio_26;
         return -ENOSYS;
 }
 #endif
@@ -412,7 +369,33 @@ static void exit_aio(void)
 
 __uml_exitcall(exit_aio);
 
-int submit_aio(struct aio_context *aio)
+static int submit_aio_24(enum aio_type type, int io_fd, char *buf, int len,
+			 unsigned long long offset, struct aio_context *aio)
 {
-	return (*submit_proc)(aio);
+        struct aio_thread_req req = { .type 		= type,
+                                      .io_fd		= io_fd,
+                                      .offset		= offset,
+                                      .buf		= buf,
+                                      .len		= len,
+                                      .aio		= aio,
+        };
+        int err;
+
+        err = os_write_file(aio_req_fd_w, &req, sizeof(req));
+        if(err == sizeof(req))
+                err = 0;
+
+        return err;
+}
+
+int submit_aio(enum aio_type type, int io_fd, char *buf, int len,
+               unsigned long long offset, int reply_fd,
+               struct aio_context *aio)
+{
+        aio->reply_fd = reply_fd;
+        if(aio_24)
+                return submit_aio_24(type, io_fd, buf, len, offset, aio);
+        else {
+                return submit_aio_26(type, io_fd, buf, len, offset, aio);
+        }
 }

drivers/firmware/dell_rbu.c

@@ -50,7 +50,7 @@
 MODULE_AUTHOR("Abhay Salunke <abhay_salunke@dell.com>");
 MODULE_DESCRIPTION("Driver for updating BIOS image on DELL systems");
 MODULE_LICENSE("GPL");
-MODULE_VERSION("2.0");
+MODULE_VERSION("3.0");
 
 #define BIOS_SCAN_LIMIT 0xffffffff
 #define MAX_IMAGE_LENGTH 16
@@ -62,15 +62,16 @@ static struct _rbu_data {
 	int dma_alloc;
 	spinlock_t lock;
 	unsigned long packet_read_count;
-	unsigned long packet_write_count;
 	unsigned long num_packets;
 	unsigned long packetsize;
+	unsigned long imagesize;
 	int entry_created;
 } rbu_data;
 
 static char image_type[MAX_IMAGE_LENGTH + 1] = "mono";
 module_param_string(image_type, image_type, sizeof (image_type), 0);
-MODULE_PARM_DESC(image_type, "BIOS image type. choose- mono or packet");
+MODULE_PARM_DESC(image_type,
+	"BIOS image type. choose- mono or packet or init");
 
 struct packet_data {
 	struct list_head list;
@@ -88,55 +89,13 @@ static dma_addr_t dell_rbu_dmaaddr;
 static void init_packet_head(void)
 {
 	INIT_LIST_HEAD(&packet_data_head.list);
-	rbu_data.packet_write_count = 0;
 	rbu_data.packet_read_count = 0;
 	rbu_data.num_packets = 0;
 	rbu_data.packetsize = 0;
+	rbu_data.imagesize = 0;
 }
 
-static int fill_last_packet(void *data, size_t length)
+static int create_packet(void *data, size_t length)
-{
-	struct list_head *ptemp_list;
-	struct packet_data *packet = NULL;
-	int packet_count = 0;
-
-	pr_debug("fill_last_packet: entry \n");
-
-	if (!rbu_data.num_packets) {
-		pr_debug("fill_last_packet: num_packets=0\n");
-		return -ENOMEM;
-	}
-
-	packet_count = rbu_data.num_packets;
-
-	ptemp_list = (&packet_data_head.list)->prev;
-
-	packet = list_entry(ptemp_list, struct packet_data, list);
-
-	if ((rbu_data.packet_write_count + length) > rbu_data.packetsize) {
-		pr_debug("dell_rbu:%s: packet size data "
-			"overrun\n", __FUNCTION__);
-		return -EINVAL;
-	}
-
-	pr_debug("fill_last_packet : buffer = %p\n", packet->data);
-
-	memcpy((packet->data + rbu_data.packet_write_count), data, length);
-
-	if ((rbu_data.packet_write_count + length) == rbu_data.packetsize) {
-		/*
-		 * this was the last data chunk in the packet
-		 * so reinitialize the packet data counter to zero
-		 */
-		rbu_data.packet_write_count = 0;
-	} else
-		rbu_data.packet_write_count += length;
-
-	pr_debug("fill_last_packet: exit \n");
-	return 0;
-}
-
-static int create_packet(size_t length)
 {
 	struct packet_data *newpacket;
 	int ordernum = 0;
@@ -186,9 +145,11 @@ static int create_packet(size_t length)
 	INIT_LIST_HEAD(&newpacket->list);
 	list_add_tail(&newpacket->list, &packet_data_head.list);
 	/*
-	 * packets have fixed size
+	 * packets may not have fixed size
 	 */
-	newpacket->length = rbu_data.packetsize;
+	newpacket->length = length;
+
+	memcpy(newpacket->data, data, length);
 
 	pr_debug("create_packet: exit \n");
 
@@ -198,14 +159,38 @@ static int create_packet(size_t length)
 static int packetize_data(void *data, size_t length)
 {
 	int rc = 0;
-
+	int done = 0;
-	if (!rbu_data.packet_write_count) {
+	int packet_length;
-		if ((rc = create_packet(length)))
+	u8 *temp;
-			return rc;
+	u8 *end = (u8 *) data + length;
+	pr_debug("packetize_data: data length %d\n", length);
+	if (!rbu_data.packetsize) {
+		printk(KERN_WARNING
+			"dell_rbu: packetsize not specified\n");
+		return -EIO;
 	}
-	if ((rc = fill_last_packet(data, length)))
+
+	temp = (u8 *) data;
+
+	/* packetize the hunk */
+	while (!done) {
+		if ((temp + rbu_data.packetsize) < end)
+			packet_length = rbu_data.packetsize;
+		else {
+			/* this is the last packet */
+			packet_length = end - temp;
+			done = 1;
+		}
+
+		if ((rc = create_packet(temp, packet_length)))
 			return rc;
 
+		pr_debug("%lu:%lu\n", temp, (end - temp));
+		temp += packet_length;
+	}
+
+	rbu_data.imagesize = length;
+
 	return rc;
 }
 
@@ -303,10 +288,9 @@ static void packet_empty_list(void)
 			newpacket->ordernum);
 		kfree(newpacket);
 	}
-	rbu_data.packet_write_count = 0;
 	rbu_data.packet_read_count = 0;
 	rbu_data.num_packets = 0;
-	rbu_data.packetsize = 0;
+	rbu_data.imagesize = 0;
 }
 
 /*
@@ -425,7 +409,6 @@ static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count)
 	size_t bytes_left;
 	size_t data_length;
 	char *ptempBuf = buffer;
-	unsigned long imagesize;
 
 	/* check to see if we have something to return */
 	if (rbu_data.num_packets == 0) {
@@ -434,22 +417,20 @@ static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count)
 		goto read_rbu_data_exit;
 	}
 
-	imagesize = rbu_data.num_packets * rbu_data.packetsize;
+	if (pos > rbu_data.imagesize) {
-
-	if (pos > imagesize) {
 		retval = 0;
 		printk(KERN_WARNING "dell_rbu:read_packet_data: "
 			"data underrun\n");
 		goto read_rbu_data_exit;
 	}
 
-	bytes_left = imagesize - pos;
+	bytes_left = rbu_data.imagesize - pos;
 	data_length = min(bytes_left, count);
 
 	if ((retval = packet_read_list(ptempBuf, &data_length)) < 0)
 		goto read_rbu_data_exit;
 
-	if ((pos + count) > imagesize) {
+	if ((pos + count) > rbu_data.imagesize) {
 		rbu_data.packet_read_count = 0;
 		/* this was the last copy */
 		retval = bytes_left;
@@ -531,13 +512,18 @@ static void callbackfn_rbu(const struct firmware *fw, void *context)
 			memcpy(rbu_data.image_update_buffer,
 				fw->data, fw->size);
 	} else if (!strcmp(image_type, "packet")) {
-		if (!rbu_data.packetsize)
+		/*
-			rbu_data.packetsize = fw->size;
+		 * we need to free previous packets if a
-		else if (rbu_data.packetsize != fw->size) {
+		 * new hunk of packets needs to be downloaded
+		 */
+		packet_empty_list();
+		if (packetize_data(fw->data, fw->size))
+			/* Incase something goes wrong when we are
+			 * in middle of packetizing the data, we
+			 * need to free up whatever packets might
+			 * have been created before we quit.
+			 */
 			packet_empty_list();
-			rbu_data.packetsize = fw->size;
-		}
-		packetize_data(fw->data, fw->size);
 	} else
 		pr_debug("invalid image type specified.\n");
 	spin_unlock(&rbu_data.lock);
@@ -621,25 +607,49 @@ static ssize_t write_rbu_image_type(struct kobject *kobj, char *buffer,
 	return rc;
 }
 
+static ssize_t read_rbu_packet_size(struct kobject *kobj, char *buffer,
+	loff_t pos, size_t count)
+{
+	int size = 0;
+	if (!pos) {
+		spin_lock(&rbu_data.lock);
+		size = sprintf(buffer, "%lu\n", rbu_data.packetsize);
+		spin_unlock(&rbu_data.lock);
+	}
+	return size;
+}
+
+static ssize_t write_rbu_packet_size(struct kobject *kobj, char *buffer,
+	loff_t pos, size_t count)
+{
+	unsigned long temp;
+	spin_lock(&rbu_data.lock);
+	packet_empty_list();
+	sscanf(buffer, "%lu", &temp);
+	if (temp < 0xffffffff)
+		rbu_data.packetsize = temp;
+
+	spin_unlock(&rbu_data.lock);
+	return count;
+}
+
 static struct bin_attribute rbu_data_attr = {
-	.attr = {
+	.attr = {.name = "data",.owner = THIS_MODULE,.mode = 0444},
-		.name = "data",
-		.owner = THIS_MODULE,
-		.mode = 0444,
-	},
 	.read = read_rbu_data,
 };
 
 static struct bin_attribute rbu_image_type_attr = {
-	.attr = {
+	.attr = {.name = "image_type",.owner = THIS_MODULE,.mode = 0644},
-		.name = "image_type",
-		.owner = THIS_MODULE,
-		.mode = 0644,
-	},
 	.read = read_rbu_image_type,
 	.write = write_rbu_image_type,
 };
 
+static struct bin_attribute rbu_packet_size_attr = {
+	.attr = {.name = "packet_size",.owner = THIS_MODULE,.mode = 0644},
+	.read = read_rbu_packet_size,
+	.write = write_rbu_packet_size,
+};
+
 static int __init dcdrbu_init(void)
 {
 	int rc = 0;
@@ -657,6 +667,8 @@ static int __init dcdrbu_init(void)
 
 	sysfs_create_bin_file(&rbu_device->dev.kobj, &rbu_data_attr);
 	sysfs_create_bin_file(&rbu_device->dev.kobj, &rbu_image_type_attr);
+	sysfs_create_bin_file(&rbu_device->dev.kobj,
+		&rbu_packet_size_attr);
 
 	rc = request_firmware_nowait(THIS_MODULE, FW_ACTION_NOHOTPLUG,
 		"dell_rbu", &rbu_device->dev, &context, callbackfn_rbu);

drivers/media/video/bttv-cards.c

@@ -2393,10 +2393,10 @@ struct tvcard bttv_tvcards[] = {
 	.tuner          = 0,
 	.tuner_type     = TUNER_LG_TDVS_H062F,
 	.tuner_addr	= ADDR_UNSET,
-	.video_inputs   = 2,
+	.video_inputs   = 3,
 	.audio_inputs   = 1,
 	.svhs           = 2,
-	.muxsel		= { 2, 3 },
+	.muxsel		= { 2, 3, 1 },
 	.gpiomask       = 0x00e00007,
 	.audiomux       = { 0x00400005, 0, 0x00000001, 0, 0x00c00007, 0 },
 	.no_msp34xx     = 1,

drivers/net/e100.c

@@ -903,8 +903,8 @@ static void mdio_write(struct net_device *netdev, int addr, int reg, int data)
 
 static void e100_get_defaults(struct nic *nic)
 {
-	struct param_range rfds = { .min = 16, .max = 256, .count = 256 };
+	struct param_range rfds = { .min = 16, .max = 256, .count = 64 };
-	struct param_range cbs  = { .min = 64, .max = 256, .count = 128 };
+	struct param_range cbs  = { .min = 64, .max = 256, .count = 64 };
 
 	pci_read_config_byte(nic->pdev, PCI_REVISION_ID, &nic->rev_id);
 	/* MAC type is encoded as rev ID; exception: ICH is treated as 82559 */
@@ -1007,212 +1007,24 @@ static void e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb)
 		c[16], c[17], c[18], c[19], c[20], c[21], c[22], c[23]);
 }
 
-/********************************************************/
-/*  Micro code for 8086:1229 Rev 8                      */
-/********************************************************/
-
-/*  Parameter values for the D101M B-step  */
-#define D101M_CPUSAVER_TIMER_DWORD		78
-#define D101M_CPUSAVER_BUNDLE_DWORD		65
-#define D101M_CPUSAVER_MIN_SIZE_DWORD		126
-
-#define D101M_B_RCVBUNDLE_UCODE \
-{\
-0x00550215, 0xFFFF0437, 0xFFFFFFFF, 0x06A70789, 0xFFFFFFFF, 0x0558FFFF, \
-0x000C0001, 0x00101312, 0x000C0008, 0x00380216, \
-0x0010009C, 0x00204056, 0x002380CC, 0x00380056, \
-0x0010009C, 0x00244C0B, 0x00000800, 0x00124818, \
-0x00380438, 0x00000000, 0x00140000, 0x00380555, \
-0x00308000, 0x00100662, 0x00100561, 0x000E0408, \
-0x00134861, 0x000C0002, 0x00103093, 0x00308000, \
-0x00100624, 0x00100561, 0x000E0408, 0x00100861, \
-0x000C007E, 0x00222C21, 0x000C0002, 0x00103093, \
-0x00380C7A, 0x00080000, 0x00103090, 0x00380C7A, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x0010009C, 0x00244C2D, 0x00010004, 0x00041000, \
-0x003A0437, 0x00044010, 0x0038078A, 0x00000000, \
-0x00100099, 0x00206C7A, 0x0010009C, 0x00244C48, \
-0x00130824, 0x000C0001, 0x00101213, 0x00260C75, \
-0x00041000, 0x00010004, 0x00130826, 0x000C0006, \
-0x002206A8, 0x0013C926, 0x00101313, 0x003806A8, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00080600, 0x00101B10, 0x00050004, 0x00100826, \
-0x00101210, 0x00380C34, 0x00000000, 0x00000000, \
-0x0021155B, 0x00100099, 0x00206559, 0x0010009C, \
-0x00244559, 0x00130836, 0x000C0000, 0x00220C62, \
-0x000C0001, 0x00101B13, 0x00229C0E, 0x00210C0E, \
-0x00226C0E, 0x00216C0E, 0x0022FC0E, 0x00215C0E, \
-0x00214C0E, 0x00380555, 0x00010004, 0x00041000, \
-0x00278C67, 0x00040800, 0x00018100, 0x003A0437, \
-0x00130826, 0x000C0001, 0x00220559, 0x00101313, \
-0x00380559, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00130831, 0x0010090B, 0x00124813, \
-0x000CFF80, 0x002606AB, 0x00041000, 0x00010004, \
-0x003806A8, 0x00000000, 0x00000000, 0x00000000, \
-}
-
-/********************************************************/
-/*  Micro code for 8086:1229 Rev 9                      */
-/********************************************************/
-
-/*  Parameter values for the D101S  */
-#define D101S_CPUSAVER_TIMER_DWORD		78
-#define D101S_CPUSAVER_BUNDLE_DWORD		67
-#define D101S_CPUSAVER_MIN_SIZE_DWORD		128
-
-#define D101S_RCVBUNDLE_UCODE \
-{\
-0x00550242, 0xFFFF047E, 0xFFFFFFFF, 0x06FF0818, 0xFFFFFFFF, 0x05A6FFFF, \
-0x000C0001, 0x00101312, 0x000C0008, 0x00380243, \
-0x0010009C, 0x00204056, 0x002380D0, 0x00380056, \
-0x0010009C, 0x00244F8B, 0x00000800, 0x00124818, \
-0x0038047F, 0x00000000, 0x00140000, 0x003805A3, \
-0x00308000, 0x00100610, 0x00100561, 0x000E0408, \
-0x00134861, 0x000C0002, 0x00103093, 0x00308000, \
-0x00100624, 0x00100561, 0x000E0408, 0x00100861, \
-0x000C007E, 0x00222FA1, 0x000C0002, 0x00103093, \
-0x00380F90, 0x00080000, 0x00103090, 0x00380F90, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x0010009C, 0x00244FAD, 0x00010004, 0x00041000, \
-0x003A047E, 0x00044010, 0x00380819, 0x00000000, \
-0x00100099, 0x00206FFD, 0x0010009A, 0x0020AFFD, \
-0x0010009C, 0x00244FC8, 0x00130824, 0x000C0001, \
-0x00101213, 0x00260FF7, 0x00041000, 0x00010004, \
-0x00130826, 0x000C0006, 0x00220700, 0x0013C926, \
-0x00101313, 0x00380700, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00080600, 0x00101B10, 0x00050004, 0x00100826, \
-0x00101210, 0x00380FB6, 0x00000000, 0x00000000, \
-0x002115A9, 0x00100099, 0x002065A7, 0x0010009A, \
-0x0020A5A7, 0x0010009C, 0x002445A7, 0x00130836, \
-0x000C0000, 0x00220FE4, 0x000C0001, 0x00101B13, \
-0x00229F8E, 0x00210F8E, 0x00226F8E, 0x00216F8E, \
-0x0022FF8E, 0x00215F8E, 0x00214F8E, 0x003805A3, \
-0x00010004, 0x00041000, 0x00278FE9, 0x00040800, \
-0x00018100, 0x003A047E, 0x00130826, 0x000C0001, \
-0x002205A7, 0x00101313, 0x003805A7, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00130831, \
-0x0010090B, 0x00124813, 0x000CFF80, 0x00260703, \
-0x00041000, 0x00010004, 0x00380700  \
-}
-
-/********************************************************/
-/*  Micro code for the 8086:1229 Rev F/10               */
-/********************************************************/
-
-/*  Parameter values for the D102 E-step  */
-#define D102_E_CPUSAVER_TIMER_DWORD		42
-#define D102_E_CPUSAVER_BUNDLE_DWORD		54
-#define D102_E_CPUSAVER_MIN_SIZE_DWORD		46
-
-#define     D102_E_RCVBUNDLE_UCODE \
-{\
-0x007D028F, 0x0E4204F9, 0x14ED0C85, 0x14FA14E9, 0x0EF70E36, 0x1FFF1FFF, \
-0x00E014B9, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014BD, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014D5, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014C1, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014C8, 0x00000000, 0x00000000, 0x00000000, \
-0x00200600, 0x00E014EE, 0x00000000, 0x00000000, \
-0x0030FF80, 0x00940E46, 0x00038200, 0x00102000, \
-0x00E00E43, 0x00000000, 0x00000000, 0x00000000, \
-0x00300006, 0x00E014FB, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00906E41, 0x00800E3C, 0x00E00E39, 0x00000000, \
-0x00906EFD, 0x00900EFD, 0x00E00EF8, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-}
-
 static void e100_load_ucode(struct nic *nic, struct cb *cb, struct sk_buff *skb)
 {
-/* *INDENT-OFF* */
-	static struct {
-		u32 ucode[UCODE_SIZE + 1];
-		u8 mac;
-		u8 timer_dword;
-		u8 bundle_dword;
-		u8 min_size_dword;
-	} ucode_opts[] = {
-		{ D101M_B_RCVBUNDLE_UCODE,
-		  mac_82559_D101M,
-		  D101M_CPUSAVER_TIMER_DWORD,
-		  D101M_CPUSAVER_BUNDLE_DWORD,
-		  D101M_CPUSAVER_MIN_SIZE_DWORD },
-		{ D101S_RCVBUNDLE_UCODE,
-		  mac_82559_D101S,
-		  D101S_CPUSAVER_TIMER_DWORD,
-		  D101S_CPUSAVER_BUNDLE_DWORD,
-		  D101S_CPUSAVER_MIN_SIZE_DWORD },
-		{ D102_E_RCVBUNDLE_UCODE,
-		  mac_82551_F,
-		  D102_E_CPUSAVER_TIMER_DWORD,
-		  D102_E_CPUSAVER_BUNDLE_DWORD,
-		  D102_E_CPUSAVER_MIN_SIZE_DWORD },
-		{ D102_E_RCVBUNDLE_UCODE,
-		  mac_82551_10,
-		  D102_E_CPUSAVER_TIMER_DWORD,
-		  D102_E_CPUSAVER_BUNDLE_DWORD,
-		  D102_E_CPUSAVER_MIN_SIZE_DWORD },
-		{ {0}, 0, 0, 0, 0}
-	}, *opts;
-/* *INDENT-ON* */
-
-#define BUNDLESMALL 1
-#define BUNDLEMAX 50
-#define INTDELAY 15000
-
-	opts = ucode_opts;
-
-	/* do not load u-code for ICH devices */
-	if (nic->flags & ich)
-		return;
-
-	/* Search for ucode match against h/w rev_id */
-	while (opts->mac) {
-		if (nic->mac == opts->mac) {
 	int i;
-			u32 *ucode = opts->ucode;
+	static const u32 ucode[UCODE_SIZE] = {
-
+		/* NFS packets are misinterpreted as TCO packets and
-			/* Insert user-tunable settings */
+		 * incorrectly routed to the BMC over SMBus.  This
-			ucode[opts->timer_dword] &= 0xFFFF0000;
+		 * microcode patch checks the fragmented IP bit in the
-			ucode[opts->timer_dword] |=
+		 * NFS/UDP header to distinguish between NFS and TCO. */
-				(u16) INTDELAY;
+		0x0EF70E36, 0x1FFF1FFF, 0x1FFF1FFF, 0x1FFF1FFF, 0x1FFF1FFF,
-			ucode[opts->bundle_dword] &= 0xFFFF0000;
+		0x1FFF1FFF, 0x00906E41, 0x00800E3C, 0x00E00E39, 0x00000000,
-			ucode[opts->bundle_dword] |= (u16) BUNDLEMAX;
+		0x00906EFD, 0x00900EFD,	0x00E00EF8,
-			ucode[opts->min_size_dword] &= 0xFFFF0000;
+	};
-			ucode[opts->min_size_dword] |=
-				(BUNDLESMALL) ?  0xFFFF : 0xFF80;
 
+	if(nic->mac == mac_82551_F || nic->mac == mac_82551_10) {
 		for(i = 0; i < UCODE_SIZE; i++)
 			cb->u.ucode[i] = cpu_to_le32(ucode[i]);
 		cb->command = cpu_to_le16(cb_ucode);
-			return;
+	} else
-		}
-		opts++;
-	}
-
 		cb->command = cpu_to_le16(cb_nop);
 }
 

drivers/s390/cio/device.c

@@ -544,7 +544,7 @@ get_disc_ccwdev_by_devno(unsigned int devno, struct ccw_device *sibling)
 		.sibling = sibling,
 	};
 
-	dev = bus_find_device(&css_bus_type, NULL, &data, match_devno);
+	dev = bus_find_device(&ccw_bus_type, NULL, &data, match_devno);
 
 	return dev ? to_ccwdev(dev) : NULL;
 }

drivers/serial/imx.c

@@ -73,7 +73,7 @@ struct imx_port {
 	struct uart_port	port;
 	struct timer_list	timer;
 	unsigned int		old_status;
-	int txirq,rxirq;
+	int txirq,rxirq,rtsirq;
 };
 
 /*
@@ -181,6 +181,22 @@ static void imx_start_tx(struct uart_port *port)
 		imx_transmit_buffer(sport);
 }
 
+static irqreturn_t imx_rtsint(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct imx_port *sport = (struct imx_port *)dev_id;
+	unsigned int val = USR1((u32)sport->port.membase)&USR1_RTSS;
+	unsigned long flags;
+
+	spin_lock_irqsave(&sport->port.lock, flags);
+
+	USR1((u32)sport->port.membase) = USR1_RTSD;
+	uart_handle_cts_change(&sport->port, !!val);
+	wake_up_interruptible(&sport->port.info->delta_msr_wait);
+
+	spin_unlock_irqrestore(&sport->port.lock, flags);
+	return IRQ_HANDLED;
+}
+
 static irqreturn_t imx_txint(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct imx_port *sport = (struct imx_port *)dev_id;
@@ -386,15 +402,21 @@ static int imx_startup(struct uart_port *port)
 	if (retval) goto error_out1;
 
 	retval = request_irq(sport->txirq, imx_txint, 0,
-			     "imx-uart", sport);
+			     DRIVER_NAME, sport);
 	if (retval) goto error_out2;
 
+	retval = request_irq(sport->rtsirq, imx_rtsint, 0,
+			     DRIVER_NAME, sport);
+	if (retval) goto error_out3;
+	set_irq_type(sport->rtsirq, IRQT_BOTHEDGE);
+
 	/*
 	 * Finally, clear and enable interrupts
 	 */
 
+	USR1((u32)sport->port.membase) = USR1_RTSD;
 	UCR1((u32)sport->port.membase) |=
-	                 (UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_UARTEN);
+	                 (UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
 
 	UCR2((u32)sport->port.membase) |= (UCR2_RXEN | UCR2_TXEN);
 	/*
@@ -406,6 +428,8 @@ static int imx_startup(struct uart_port *port)
 
 	return 0;
 
+error_out3:
+	free_irq(sport->txirq, sport);
 error_out2:
 	free_irq(sport->rxirq, sport);
 error_out1:
@@ -424,6 +448,7 @@ static void imx_shutdown(struct uart_port *port)
 	/*
 	 * Free the interrupts
 	 */
+	free_irq(sport->rtsirq, sport);
 	free_irq(sport->txirq, sport);
 	free_irq(sport->rxirq, sport);
 
@@ -432,7 +457,7 @@ static void imx_shutdown(struct uart_port *port)
 	 */
 
 	UCR1((u32)sport->port.membase) &=
-	                 ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_UARTEN);
+	                 ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
 }
 
 static void
@@ -522,7 +547,7 @@ imx_set_termios(struct uart_port *port, struct termios *termios,
 	 * disable interrupts and drain transmitter
 	 */
 	old_ucr1 = UCR1((u32)sport->port.membase);
-	UCR1((u32)sport->port.membase) &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN);
+	UCR1((u32)sport->port.membase) &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN);
 
 	while ( !(USR2((u32)sport->port.membase) & USR2_TXDC))
 		barrier();
@@ -643,6 +668,7 @@ static struct imx_port imx_ports[] = {
 	{
 	.txirq  = UART1_MINT_TX,
 	.rxirq  = UART1_MINT_RX,
+	.rtsirq = UART1_MINT_RTS,
 	.port	= {
 		.type		= PORT_IMX,
 		.iotype		= SERIAL_IO_MEM,
@@ -658,6 +684,7 @@ static struct imx_port imx_ports[] = {
 	}, {
 	.txirq  = UART2_MINT_TX,
 	.rxirq  = UART2_MINT_RX,
+	.rtsirq = UART2_MINT_RTS,
 	.port	= {
 		.type		= PORT_IMX,
 		.iotype		= SERIAL_IO_MEM,
@@ -737,7 +764,7 @@ imx_console_write(struct console *co, const char *s, unsigned int count)
 
 	UCR1((u32)sport->port.membase) =
 	                   (old_ucr1 | UCR1_UARTCLKEN | UCR1_UARTEN)
-	                   & ~(UCR1_TXMPTYEN | UCR1_RRDYEN);
+	                   & ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN);
 	UCR2((u32)sport->port.membase) = old_ucr2 | UCR2_TXEN;
 
 	/*

drivers/serial/pxa.c

@@ -499,7 +499,7 @@ serial_pxa_set_termios(struct uart_port *port, struct termios *termios,
 	/*
 	 * Update the per-port timeout.
 	 */
-	uart_update_timeout(port, termios->c_cflag, quot);
+	uart_update_timeout(port, termios->c_cflag, baud);
 
 	up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
 	if (termios->c_iflag & INPCK)

drivers/serial/s3c2410.c

@@ -1092,7 +1092,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 
 static int probe_index = 0;
 
-int s3c24xx_serial_probe(struct device *_dev,
+static int s3c24xx_serial_probe(struct device *_dev,
 				struct s3c24xx_uart_info *info)
 {
 	struct s3c24xx_uart_port *ourport;
@@ -1120,7 +1120,7 @@ int s3c24xx_serial_probe(struct device *_dev,
 	return ret;
 }
 
-int s3c24xx_serial_remove(struct device *_dev)
+static int s3c24xx_serial_remove(struct device *_dev)
 {
 	struct uart_port *port = s3c24xx_dev_to_port(_dev);
 
@@ -1134,7 +1134,8 @@ int s3c24xx_serial_remove(struct device *_dev)
 
 #ifdef CONFIG_PM
 
-int s3c24xx_serial_suspend(struct device *dev, pm_message_t state, u32 level)
+static int s3c24xx_serial_suspend(struct device *dev, pm_message_t state,
+				  u32 level)
 {
 	struct uart_port *port = s3c24xx_dev_to_port(dev);
 
@@ -1144,7 +1145,7 @@ int s3c24xx_serial_suspend(struct device *dev, pm_message_t state, u32 level)
 	return 0;
 }
 
-int s3c24xx_serial_resume(struct device *dev, u32 level)
+static int s3c24xx_serial_resume(struct device *dev, u32 level)
 {
 	struct uart_port *port = s3c24xx_dev_to_port(dev);
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
@@ -1165,7 +1166,7 @@ int s3c24xx_serial_resume(struct device *dev, u32 level)
 #define s3c24xx_serial_resume  NULL
 #endif
 
-int s3c24xx_serial_init(struct device_driver *drv,
+static int s3c24xx_serial_init(struct device_driver *drv,
 			       struct s3c24xx_uart_info *info)
 {
 	dbg("s3c24xx_serial_init(%p,%p)\n", drv, info);

drivers/serial/sunsab.c

@@ -274,7 +274,6 @@ static void transmit_chars(struct uart_sunsab_port *up,
 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
 		up->interrupt_mask1 |= SAB82532_IMR1_XPR;
 		writeb(up->interrupt_mask1, &up->regs->w.imr1);
-		uart_write_wakeup(&up->port);
 		return;
 	}
 

drivers/serial/sunzilog.c

@@ -517,10 +517,9 @@ static void sunzilog_transmit_chars(struct uart_sunzilog_port *up,
 	if (up->port.info == NULL)
 		goto ack_tx_int;
 	xmit = &up->port.info->xmit;
-	if (uart_circ_empty(xmit)) {
+	if (uart_circ_empty(xmit))
-		uart_write_wakeup(&up->port);
 		goto ack_tx_int;
-	}
+
 	if (uart_tx_stopped(&up->port))
 		goto ack_tx_int;
 

fs/9p/vfs_file.c

@@ -175,16 +175,16 @@ static int v9fs_file_lock(struct file *filp, int cmd, struct file_lock *fl)
 }
 
 /**
- * v9fs_read - read from a file (internal)
+ * v9fs_file_read - read from a file
  * @filep: file pointer to read
  * @data: data buffer to read data into
  * @count: size of buffer
  * @offset: offset at which to read data
  *
  */
-
 static ssize_t
-v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
+v9fs_file_read(struct file *filp, char __user * data, size_t count,
+	       loff_t * offset)
 {
 	struct inode *inode = filp->f_dentry->d_inode;
 	struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
@@ -194,6 +194,7 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
 	int rsize = 0;
 	int result = 0;
 	int total = 0;
+	int n;
 
 	dprintk(DEBUG_VFS, "\n");
 
@@ -216,10 +217,15 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
 		} else
 			*offset += result;
 
-		/* XXX - extra copy */
+		n = copy_to_user(data, fcall->params.rread.data, result);
-		memcpy(buffer, fcall->params.rread.data, result);
+		if (n) {
+			dprintk(DEBUG_ERROR, "Problem copying to user %d\n", n);
+			kfree(fcall);
+			return -EFAULT;
+		}
+
 		count -= result;
-		buffer += result;
+		data += result;
 		total += result;
 
 		kfree(fcall);
@@ -231,101 +237,6 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
 	return total;
 }
 
-/**
- * v9fs_file_read - read from a file
- * @filep: file pointer to read
- * @data: data buffer to read data into
- * @count: size of buffer
- * @offset: offset at which to read data
- *
- */
-
-static ssize_t
-v9fs_file_read(struct file *filp, char __user * data, size_t count,
-	       loff_t * offset)
-{
-	int retval = -1;
-	int ret = 0;
-	char *buffer;
-
-	buffer = kmalloc(count, GFP_KERNEL);
-	if (!buffer)
-		return -ENOMEM;
-
-	retval = v9fs_read(filp, buffer, count, offset);
-	if (retval > 0) {
-		if ((ret = copy_to_user(data, buffer, retval)) != 0) {
-			dprintk(DEBUG_ERROR, "Problem copying to user %d\n",
-				ret);
-			retval = ret;
-		}
-	}
-
-	kfree(buffer);
-
-	return retval;
-}
-
-/**
- * v9fs_write - write to a file
- * @filep: file pointer to write
- * @data: data buffer to write data from
- * @count: size of buffer
- * @offset: offset at which to write data
- *
- */
-
-static ssize_t
-v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
-{
-	struct inode *inode = filp->f_dentry->d_inode;
-	struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
-	struct v9fs_fid *v9fid = filp->private_data;
-	struct v9fs_fcall *fcall;
-	int fid = v9fid->fid;
-	int result = -EIO;
-	int rsize = 0;
-	int total = 0;
-
-	dprintk(DEBUG_VFS, "data %p count %d offset %x\n", buffer, (int)count,
-		(int)*offset);
-	rsize = v9ses->maxdata - V9FS_IOHDRSZ;
-	if (v9fid->iounit != 0 && rsize > v9fid->iounit)
-		rsize = v9fid->iounit;
-
-	dump_data(buffer, count);
-
-	do {
-		if (count < rsize)
-			rsize = count;
-
-		result =
-		    v9fs_t_write(v9ses, fid, *offset, rsize, buffer, &fcall);
-		if (result < 0) {
-			eprintk(KERN_ERR, "error while writing: %s(%d)\n",
-				FCALL_ERROR(fcall), result);
-			kfree(fcall);
-			return result;
-		} else
-			*offset += result;
-
-		kfree(fcall);
-
-		if (result != rsize) {
-			eprintk(KERN_ERR,
-				"short write: v9fs_t_write returned %d\n",
-				result);
-			break;
-		}
-
-		count -= result;
-		buffer += result;
-		total += result;
-	} while (count);
-
-	return total;
-}
-
 /**
  * v9fs_file_write - write to a file
  * @filep: file pointer to write
@@ -339,24 +250,65 @@ static ssize_t
 v9fs_file_write(struct file *filp, const char __user * data,
 		size_t count, loff_t * offset)
 {
-	int ret = -1;
+	struct inode *inode = filp->f_dentry->d_inode;
-	char *buffer;
+	struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
+	struct v9fs_fid *v9fid = filp->private_data;
+	struct v9fs_fcall *fcall;
+	int fid = v9fid->fid;
+	int result = -EIO;
+	int rsize = 0;
+	int total = 0;
+	char *buf;
 
-	buffer = kmalloc(count, GFP_KERNEL);
+	dprintk(DEBUG_VFS, "data %p count %d offset %x\n", data, (int)count,
-	if (buffer == NULL)
+		(int)*offset);
+	rsize = v9ses->maxdata - V9FS_IOHDRSZ;
+	if (v9fid->iounit != 0 && rsize > v9fid->iounit)
+		rsize = v9fid->iounit;
+
+	buf = kmalloc(v9ses->maxdata - V9FS_IOHDRSZ, GFP_KERNEL);
+	if (!buf)
 		return -ENOMEM;
 
-	ret = copy_from_user(buffer, data, count);
+	do {
-	if (ret) {
+		if (count < rsize)
+			rsize = count;
+
+		result = copy_from_user(buf, data, rsize);
+		if (result) {
 			dprintk(DEBUG_ERROR, "Problem copying from user\n");
-		ret = -EFAULT;
+			kfree(buf);
-	} else {
+			return -EFAULT;
-		ret = v9fs_write(filp, buffer, count, offset);
 		}
 
-	kfree(buffer);
+		dump_data(buf, rsize);
+		result = v9fs_t_write(v9ses, fid, *offset, rsize, buf, &fcall);
+		if (result < 0) {
+			eprintk(KERN_ERR, "error while writing: %s(%d)\n",
+				FCALL_ERROR(fcall), result);
+			kfree(fcall);
+			kfree(buf);
+			return result;
+		} else
+			*offset += result;
 
-	return ret;
+		kfree(fcall);
+		fcall = NULL;
+
+		if (result != rsize) {
+			eprintk(KERN_ERR,
+				"short write: v9fs_t_write returned %d\n",
+				result);
+			break;
+		}
+
+		count -= result;
+		data += result;
+		total += result;
+	} while (count);
+
+	kfree(buf);
+	return total;
 }
 
 struct file_operations v9fs_file_operations = {

fs/binfmt_elf.c

@@ -905,7 +905,7 @@ static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 		send_sig(SIGKILL, current, 0);
 		goto out_free_dentry;
 	}
-	if (padzero(elf_bss)) {
+	if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
 		send_sig(SIGSEGV, current, 0);
 		retval = -EFAULT; /* Nobody gets to see this, but.. */
 		goto out_free_dentry;

fs/nfs_common/nfsacl.c

@@ -48,7 +48,6 @@ xdr_nfsace_encode(struct xdr_array2_desc *desc, void *elem)
 		(struct nfsacl_encode_desc *) desc;
 	u32 *p = (u32 *) elem;
 
-	if (nfsacl_desc->count < nfsacl_desc->acl->a_count) {
 	struct posix_acl_entry *entry =
 		&nfsacl_desc->acl->a_entries[nfsacl_desc->count++];
 
@@ -69,22 +68,6 @@ xdr_nfsace_encode(struct xdr_array2_desc *desc, void *elem)
 			break;
 	}
 	*p++ = htonl(entry->e_perm & S_IRWXO);
-	} else {
-		const struct posix_acl_entry *pa, *pe;
-		int group_obj_perm = ACL_READ|ACL_WRITE|ACL_EXECUTE;
-
-		FOREACH_ACL_ENTRY(pa, nfsacl_desc->acl, pe) {
-			if (pa->e_tag == ACL_GROUP_OBJ) {
-				group_obj_perm = pa->e_perm & S_IRWXO;
-				break;
-			}
-		}
-		/* fake up ACL_MASK entry */
-		*p++ = htonl(ACL_MASK | nfsacl_desc->typeflag);
-		*p++ = htonl(0);
-		*p++ = htonl(group_obj_perm);
-	}
-
 	return 0;
 }
 
@@ -105,11 +88,28 @@ nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
 		.gid = inode->i_gid,
 	};
 	int err;
+	struct posix_acl *acl2 = NULL;
 
 	if (entries > NFS_ACL_MAX_ENTRIES ||
 	    xdr_encode_word(buf, base, entries))
 		return -EINVAL;
+	if (encode_entries && acl && acl->a_count == 3) {
+		/* Fake up an ACL_MASK entry. */
+		acl2 = posix_acl_alloc(4, GFP_KERNEL);
+		if (!acl2)
+			return -ENOMEM;
+		/* Insert entries in canonical order: other orders seem
+		 to confuse Solaris VxFS. */
+		acl2->a_entries[0] = acl->a_entries[0];  /* ACL_USER_OBJ */
+		acl2->a_entries[1] = acl->a_entries[1];  /* ACL_GROUP_OBJ */
+		acl2->a_entries[2] = acl->a_entries[1];  /* ACL_MASK */
+		acl2->a_entries[2].e_tag = ACL_MASK;
+		acl2->a_entries[3] = acl->a_entries[2];  /* ACL_OTHER */
+		nfsacl_desc.acl = acl2;
+	}
 	err = xdr_encode_array2(buf, base + 4, &nfsacl_desc.desc);
+	if (acl2)
+		posix_acl_release(acl2);
 	if (!err)
 		err = 8 + nfsacl_desc.desc.elem_size *
 			  nfsacl_desc.desc.array_len;

include/asm-arm/arch-pxa/pxa-regs.h

@@ -126,8 +126,8 @@
 #define DRCMR12		__REG(0x40000130)  /* Request to Channel Map Register for AC97 audio transmit Request */
 #define DRCMR13		__REG(0x40000134)  /* Request to Channel Map Register for SSP receive Request */
 #define DRCMR14		__REG(0x40000138)  /* Request to Channel Map Register for SSP transmit Request */
-#define DRCMR15		__REG(0x4000013c)  /* Reserved */
+#define DRCMR15		__REG(0x4000013c)  /* Request to Channel Map Register for SSP2 receive Request */
-#define DRCMR16		__REG(0x40000140)  /* Reserved */
+#define DRCMR16		__REG(0x40000140)  /* Request to Channel Map Register for SSP2 transmit Request */
 #define DRCMR17		__REG(0x40000144)  /* Request to Channel Map Register for ICP receive Request */
 #define DRCMR18		__REG(0x40000148)  /* Request to Channel Map Register for ICP transmit Request */
 #define DRCMR19		__REG(0x4000014c)  /* Request to Channel Map Register for STUART receive Request */
@@ -151,7 +151,8 @@
 #define DRCMR37		__REG(0x40000194)  /* Request to Channel Map Register for USB endpoint 13 Request */
 #define DRCMR38		__REG(0x40000198)  /* Request to Channel Map Register for USB endpoint 14 Request */
 #define DRCMR39		__REG(0x4000019C)  /* Reserved */
-
+#define DRCMR66		__REG(0x40001108)  /* Request to Channel Map Register for SSP3 receive Request */
+#define DRCMR67		__REG(0x4000110C)  /* Request to Channel Map Register for SSP3 transmit Request */
 #define DRCMR68		__REG(0x40001110)  /* Request to Channel Map Register for Camera FIFO 0 Request */
 #define DRCMR69		__REG(0x40001114)  /* Request to Channel Map Register for Camera FIFO 1 Request */
 #define DRCMR70		__REG(0x40001118)  /* Request to Channel Map Register for Camera FIFO 2 Request */

include/asm-arm/arch-s3c2410/hardware.h

@@ -92,6 +92,13 @@ extern unsigned int s3c2410_gpio_getpin(unsigned int pin);
 
 extern unsigned int s3c2410_modify_misccr(unsigned int clr, unsigned int chg);
 
+#ifdef CONFIG_CPU_S3C2440
+
+extern int s3c2440_set_dsc(unsigned int pin, unsigned int value);
+
+#endif /* CONFIG_CPU_S3C2440 */
+
+
 #endif /* __ASSEMBLY__ */
 
 #include <asm/sizes.h>

include/asm-powerpc/timex.h

@@ -10,7 +10,7 @@
 #include <linux/config.h>
 #include <asm/cputable.h>
 
-#define CLOCK_TICK_RATE	1193180 /* Underlying HZ */
+#define CLOCK_TICK_RATE	1024000 /* Underlying HZ */
 
 typedef unsigned long cycles_t;
 

include/asm-ppc/cputable.h

@@ -24,6 +24,7 @@
 #define PPC_FEATURE_HAS_SPE		0x00800000
 #define PPC_FEATURE_HAS_EFP_SINGLE	0x00400000
 #define PPC_FEATURE_HAS_EFP_DOUBLE	0x00200000
+#define PPC_FEATURE_NO_TB		0x00100000
 
 #ifdef __KERNEL__
 

include/linux/cpumask.h

@@ -392,4 +392,16 @@ extern cpumask_t cpu_present_map;
 #define for_each_online_cpu(cpu)  for_each_cpu_mask((cpu), cpu_online_map)
 #define for_each_present_cpu(cpu) for_each_cpu_mask((cpu), cpu_present_map)
 
+/* Find the highest possible smp_processor_id() */
+static inline unsigned int highest_possible_processor_id(void)
+{
+	unsigned int cpu, highest = 0;
+
+	for_each_cpu_mask(cpu, cpu_possible_map)
+		highest = cpu;
+
+	return highest;
+}
+
+
 #endif /* __LINUX_CPUMASK_H */

include/linux/netfilter/nfnetlink.h

@@ -41,11 +41,15 @@ enum nfnetlink_groups {
 struct nfattr
 {
 	u_int16_t nfa_len;
-	u_int16_t nfa_type;
+	u_int16_t nfa_type;	/* we use 15 bits for the type, and the highest
+				 * bit to indicate whether the payload is nested */
 } __attribute__ ((packed));
 
-/* FIXME: Shamelessly copy and pasted from rtnetlink.h, it's time
+/* FIXME: Apart from NFNL_NFA_NESTED shamelessly copy and pasted from
- * 	  to put this in a generic file */
+ * rtnetlink.h, it's time to put this in a generic file */
+
+#define NFNL_NFA_NEST	0x8000
+#define NFA_TYPE(attr) 	((attr)->nfa_type & 0x7fff)
 
 #define NFA_ALIGNTO     4
 #define NFA_ALIGN(len)	(((len) + NFA_ALIGNTO - 1) & ~(NFA_ALIGNTO - 1))
@@ -59,7 +63,7 @@ struct nfattr
 #define NFA_PAYLOAD(nfa) ((int)((nfa)->nfa_len) - NFA_LENGTH(0))
 #define NFA_NEST(skb, type) \
 ({	struct nfattr *__start = (struct nfattr *) (skb)->tail; \
-	NFA_PUT(skb, type, 0, NULL); \
+	NFA_PUT(skb, (NFNL_NFA_NEST | type), 0, NULL); \
 	__start;  })
 #define NFA_NEST_END(skb, start) \
 ({      (start)->nfa_len = ((skb)->tail - (unsigned char *) (start)); \

include/linux/netfilter/nfnetlink_conntrack.h

@@ -70,15 +70,24 @@ enum ctattr_l4proto {
 
 enum ctattr_protoinfo {
 	CTA_PROTOINFO_UNSPEC,
-	CTA_PROTOINFO_TCP_STATE,
+	CTA_PROTOINFO_TCP,
 	__CTA_PROTOINFO_MAX
 };
 #define CTA_PROTOINFO_MAX (__CTA_PROTOINFO_MAX - 1)
 
+enum ctattr_protoinfo_tcp {
+	CTA_PROTOINFO_TCP_UNSPEC,
+	CTA_PROTOINFO_TCP_STATE,
+	__CTA_PROTOINFO_TCP_MAX
+};
+#define CTA_PROTOINFO_TCP_MAX (__CTA_PROTOINFO_TCP_MAX - 1)
+
 enum ctattr_counters {
 	CTA_COUNTERS_UNSPEC,
-	CTA_COUNTERS_PACKETS,
+	CTA_COUNTERS_PACKETS,		/* old 64bit counters */
-	CTA_COUNTERS_BYTES,
+	CTA_COUNTERS_BYTES,		/* old 64bit counters */
+	CTA_COUNTERS32_PACKETS,
+	CTA_COUNTERS32_BYTES,
 	__CTA_COUNTERS_MAX
 };
 #define CTA_COUNTERS_MAX (__CTA_COUNTERS_MAX - 1)

include/linux/netfilter_ipv4/ip_conntrack.h

@@ -117,6 +117,10 @@ enum ip_conntrack_events
 	/* NAT info */
 	IPCT_NATINFO_BIT = 10,
 	IPCT_NATINFO = (1 << IPCT_NATINFO_BIT),
+
+	/* Counter highest bit has been set */
+	IPCT_COUNTER_FILLING_BIT = 11,
+	IPCT_COUNTER_FILLING = (1 << IPCT_COUNTER_FILLING_BIT),
 };
 
 enum ip_conntrack_expect_events {
@@ -192,8 +196,8 @@ do {									\
 
 struct ip_conntrack_counter
 {
-	u_int64_t packets;
+	u_int32_t packets;
-	u_int64_t bytes;
+	u_int32_t bytes;
 };
 
 struct ip_conntrack_helper;

include/linux/netfilter_ipv4/ip_conntrack_protocol.h

@@ -52,6 +52,9 @@ struct ip_conntrack_protocol
 	int (*to_nfattr)(struct sk_buff *skb, struct nfattr *nfa,
 			 const struct ip_conntrack *ct);
 
+	/* convert nfnetlink attributes to protoinfo */
+	int (*from_nfattr)(struct nfattr *tb[], struct ip_conntrack *ct);
+
 	int (*tuple_to_nfattr)(struct sk_buff *skb,
 			       const struct ip_conntrack_tuple *t);
 	int (*nfattr_to_tuple)(struct nfattr *tb[],

include/linux/netfilter_ipv4/ip_conntrack_tuple.h

@@ -1,6 +1,8 @@
 #ifndef _IP_CONNTRACK_TUPLE_H
 #define _IP_CONNTRACK_TUPLE_H
 
+#include <linux/types.h>
+
 /* A `tuple' is a structure containing the information to uniquely
   identify a connection.  ie. if two packets have the same tuple, they
   are in the same connection; if not, they are not.

include/linux/netfilter_ipv4/ip_nat.h

@@ -58,10 +58,6 @@ extern rwlock_t ip_nat_lock;
 struct ip_nat_info
 {
 	struct list_head bysource;
-
-	/* Helper (NULL if none). */
-	struct ip_nat_helper *helper;
-
 	struct ip_nat_seq seq[IP_CT_DIR_MAX];
 };
 

include/linux/netpoll.h

@@ -86,7 +86,7 @@ static inline void netpoll_poll_unlock(void *have)
 
 #else
 #define netpoll_rx(a) 0
-#define netpoll_poll_lock(a) 0
+#define netpoll_poll_lock(a) NULL
 #define netpoll_poll_unlock(a)
 #endif
 

include/net/inet_timewait_sock.h

@@ -19,6 +19,7 @@
 
 #include <linux/ip.h>
 #include <linux/list.h>
+#include <linux/module.h>
 #include <linux/timer.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
@@ -193,11 +194,13 @@ static inline u32 inet_rcv_saddr(const struct sock *sk)
 static inline void inet_twsk_put(struct inet_timewait_sock *tw)
 {
 	if (atomic_dec_and_test(&tw->tw_refcnt)) {
+		struct module *owner = tw->tw_prot->owner;
 #ifdef SOCK_REFCNT_DEBUG
 		printk(KERN_DEBUG "%s timewait_sock %p released\n",
 		       tw->tw_prot->name, tw);
 #endif
 		kmem_cache_free(tw->tw_prot->twsk_slab, tw);
+		module_put(owner);
 	}
 }
 

mm/fremap.c

@@ -89,6 +89,9 @@ int install_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
 	if (!page->mapping || page->index >= size)
 		goto err_unlock;
+	err = -ENOMEM;
+	if (page_mapcount(page) > INT_MAX/2)
+		goto err_unlock;
 
 	zap_pte(mm, vma, addr, pte);
 

mm/madvise.c

@@ -83,6 +83,9 @@ static long madvise_willneed(struct vm_area_struct * vma,
 {
 	struct file *file = vma->vm_file;
 
+	if (!file)
+		return -EBADF;
+
 	if (file->f_mapping->a_ops->get_xip_page) {
 		/* no bad return value, but ignore advice */
 		return 0;
@@ -141,11 +144,7 @@ static long
 madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev,
 		unsigned long start, unsigned long end, int behavior)
 {
-	struct file *filp = vma->vm_file;
+	long error;
-	long error = -EBADF;
-
-	if (!filp)
-		goto  out;
 
 	switch (behavior) {
 	case MADV_NORMAL:
@@ -166,8 +165,6 @@ madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev,
 		error = -EINVAL;
 		break;
 	}
-		
-out:
 	return error;
 }
 

net/bridge/br_if.c

@@ -79,7 +79,6 @@ static void destroy_nbp(struct net_bridge_port *p)
 {
 	struct net_device *dev = p->dev;
 
-	dev->br_port = NULL;
 	p->br = NULL;
 	p->dev = NULL;
 	dev_put(dev);
@@ -100,6 +99,7 @@ static void del_nbp(struct net_bridge_port *p)
 	struct net_bridge *br = p->br;
 	struct net_device *dev = p->dev;
 
+	dev->br_port = NULL;
 	dev_set_promiscuity(dev, -1);
 
 	spin_lock_bh(&br->lock);

net/bridge/netfilter/ebtables.c

@@ -26,6 +26,7 @@
 #include <linux/spinlock.h>
 #include <asm/uaccess.h>
 #include <linux/smp.h>
+#include <linux/cpumask.h>
 #include <net/sock.h>
 /* needed for logical [in,out]-dev filtering */
 #include "../br_private.h"
@@ -823,10 +824,11 @@ static int translate_table(struct ebt_replace *repl,
 		/* this will get free'd in do_replace()/ebt_register_table()
 		   if an error occurs */
 		newinfo->chainstack = (struct ebt_chainstack **)
-		   vmalloc(num_possible_cpus() * sizeof(struct ebt_chainstack));
+		   vmalloc((highest_possible_processor_id()+1) 
+				   		* sizeof(struct ebt_chainstack));
 		if (!newinfo->chainstack)
 			return -ENOMEM;
-		for (i = 0; i < num_possible_cpus(); i++) {
+		for_each_cpu(i) {
 			newinfo->chainstack[i] =
 			   vmalloc(udc_cnt * sizeof(struct ebt_chainstack));
 			if (!newinfo->chainstack[i]) {
@@ -896,8 +898,11 @@ static void get_counters(struct ebt_counter *oldcounters,
 	/* counters of cpu 0 */
 	memcpy(counters, oldcounters,
 	       sizeof(struct ebt_counter) * nentries);
+
 	/* add other counters to those of cpu 0 */
-	for (cpu = 1; cpu < num_possible_cpus(); cpu++) {
+	for_each_cpu(cpu) {
+		if (cpu == 0)
+			continue;
 		counter_base = COUNTER_BASE(oldcounters, nentries, cpu);
 		for (i = 0; i < nentries; i++) {
 			counters[i].pcnt += counter_base[i].pcnt;
@@ -929,7 +934,8 @@ static int do_replace(void __user *user, unsigned int len)
 		BUGPRINT("Entries_size never zero\n");
 		return -EINVAL;
 	}
-	countersize = COUNTER_OFFSET(tmp.nentries) * num_possible_cpus();
+	countersize = COUNTER_OFFSET(tmp.nentries) * 
+					(highest_possible_processor_id()+1);
 	newinfo = (struct ebt_table_info *)
 	   vmalloc(sizeof(struct ebt_table_info) + countersize);
 	if (!newinfo)
@@ -1022,7 +1028,7 @@ static int do_replace(void __user *user, unsigned int len)
 
 	vfree(table->entries);
 	if (table->chainstack) {
-		for (i = 0; i < num_possible_cpus(); i++)
+		for_each_cpu(i)
 			vfree(table->chainstack[i]);
 		vfree(table->chainstack);
 	}
@@ -1040,7 +1046,7 @@ free_counterstmp:
 	vfree(counterstmp);
 	/* can be initialized in translate_table() */
 	if (newinfo->chainstack) {
-		for (i = 0; i < num_possible_cpus(); i++)
+		for_each_cpu(i)
 			vfree(newinfo->chainstack[i]);
 		vfree(newinfo->chainstack);
 	}
@@ -1132,7 +1138,8 @@ int ebt_register_table(struct ebt_table *table)
 		return -EINVAL;
 	}
 
-	countersize = COUNTER_OFFSET(table->table->nentries) * num_possible_cpus();
+	countersize = COUNTER_OFFSET(table->table->nentries) *
+					(highest_possible_processor_id()+1);
 	newinfo = (struct ebt_table_info *)
 	   vmalloc(sizeof(struct ebt_table_info) + countersize);
 	ret = -ENOMEM;
@@ -1186,7 +1193,7 @@ free_unlock:
 	up(&ebt_mutex);
 free_chainstack:
 	if (newinfo->chainstack) {
-		for (i = 0; i < num_possible_cpus(); i++)
+		for_each_cpu(i)
 			vfree(newinfo->chainstack[i]);
 		vfree(newinfo->chainstack);
 	}
@@ -1209,7 +1216,7 @@ void ebt_unregister_table(struct ebt_table *table)
 	up(&ebt_mutex);
 	vfree(table->private->entries);
 	if (table->private->chainstack) {
-		for (i = 0; i < num_possible_cpus(); i++)
+		for_each_cpu(i)
 			vfree(table->private->chainstack[i]);
 		vfree(table->private->chainstack);
 	}

net/dccp/ccid.h

@@ -110,14 +110,14 @@ static inline int ccid_hc_tx_init(struct ccid *ccid, struct sock *sk)
 
 static inline void ccid_hc_rx_exit(struct ccid *ccid, struct sock *sk)
 {
-	if (ccid->ccid_hc_rx_exit != NULL &&
+	if (ccid != NULL && ccid->ccid_hc_rx_exit != NULL &&
 	    dccp_sk(sk)->dccps_hc_rx_ccid_private != NULL)
 		ccid->ccid_hc_rx_exit(sk);
 }
 
 static inline void ccid_hc_tx_exit(struct ccid *ccid, struct sock *sk)
 {
-	if (ccid->ccid_hc_tx_exit != NULL &&
+	if (ccid != NULL && ccid->ccid_hc_tx_exit != NULL &&
 	    dccp_sk(sk)->dccps_hc_tx_ccid_private != NULL)
 		ccid->ccid_hc_tx_exit(sk);
 }

net/dccp/input.c

@@ -375,6 +375,9 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
 	case DCCP_PKT_RESET:
 		inet_csk_clear_xmit_timer(sk, ICSK_TIME_DACK);
 		break;
+	case DCCP_PKT_DATA:
+		if (sk->sk_state == DCCP_RESPOND)
+			break;
 	case DCCP_PKT_DATAACK:
 	case DCCP_PKT_ACK:
 		/*
@@ -393,7 +396,8 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
 		dccp_sk(sk)->dccps_osr = DCCP_SKB_CB(skb)->dccpd_seq;
 		dccp_set_state(sk, DCCP_OPEN);
 
-		if (dh->dccph_type == DCCP_PKT_DATAACK) {
+		if (dh->dccph_type == DCCP_PKT_DATAACK ||
+		    dh->dccph_type == DCCP_PKT_DATA) {
 			dccp_rcv_established(sk, skb, dh, len);
 			queued = 1; /* packet was queued
 				       (by dccp_rcv_established) */

net/ipv4/esp4.c

@@ -5,6 +5,7 @@
 #include <net/esp.h>
 #include <asm/scatterlist.h>
 #include <linux/crypto.h>
+#include <linux/kernel.h>
 #include <linux/pfkeyv2.h>
 #include <linux/random.h>
 #include <net/icmp.h>
@@ -42,10 +43,10 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
 	esp = x->data;
 	alen = esp->auth.icv_trunc_len;
 	tfm = esp->conf.tfm;
-	blksize = (crypto_tfm_alg_blocksize(tfm) + 3) & ~3;
+	blksize = ALIGN(crypto_tfm_alg_blocksize(tfm), 4);
-	clen = (clen + 2 + blksize-1)&~(blksize-1);
+	clen = ALIGN(clen + 2, blksize);
 	if (esp->conf.padlen)
-		clen = (clen + esp->conf.padlen-1)&~(esp->conf.padlen-1);
+		clen = ALIGN(clen, esp->conf.padlen);
 
 	if ((nfrags = skb_cow_data(skb, clen-skb->len+alen, &trailer)) < 0)
 		goto error;
@@ -143,7 +144,7 @@ static int esp_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struc
 	struct ip_esp_hdr *esph;
 	struct esp_data *esp = x->data;
 	struct sk_buff *trailer;
-	int blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
+	int blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
 	int alen = esp->auth.icv_trunc_len;
 	int elen = skb->len - sizeof(struct ip_esp_hdr) - esp->conf.ivlen - alen;
 	int nfrags;
@@ -304,16 +305,16 @@ static int esp_post_input(struct xfrm_state *x, struct xfrm_decap_state *decap,
 static u32 esp4_get_max_size(struct xfrm_state *x, int mtu)
 {
 	struct esp_data *esp = x->data;
-	u32 blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
+	u32 blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
 
 	if (x->props.mode) {
-		mtu = (mtu + 2 + blksize-1)&~(blksize-1);
+		mtu = ALIGN(mtu + 2, blksize);
 	} else {
 		/* The worst case. */
-		mtu += 2 + blksize;
+		mtu = ALIGN(mtu + 2, 4) + blksize - 4;
 	}
 	if (esp->conf.padlen)
-		mtu = (mtu + esp->conf.padlen-1)&~(esp->conf.padlen-1);
+		mtu = ALIGN(mtu, esp->conf.padlen);
 
 	return mtu + x->props.header_len + esp->auth.icv_trunc_len;
 }

net/ipv4/inet_timewait_sock.c

@@ -111,6 +111,7 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int stat
 		tw->tw_prot	    = sk->sk_prot_creator;
 		atomic_set(&tw->tw_refcnt, 1);
 		inet_twsk_dead_node_init(tw);
+		__module_get(tw->tw_prot->owner);
 	}
 
 	return tw;

net/ipv4/netfilter/Kconfig

@@ -139,6 +139,7 @@ config IP_NF_AMANDA
 
 config IP_NF_PPTP
 	tristate  'PPTP protocol support'
+	depends on IP_NF_CONNTRACK
 	help
 	  This module adds support for PPTP (Point to Point Tunnelling
 	  Protocol, RFC2637) connection tracking and NAT. 
@@ -498,9 +499,14 @@ config IP_NF_TARGET_LOG
 	  To compile it as a module, choose M here.  If unsure, say N.
 
 config IP_NF_TARGET_ULOG
-	tristate "ULOG target support"
+	tristate "ULOG target support (OBSOLETE)"
 	depends on IP_NF_IPTABLES
 	---help---
+
+	  This option enables the old IPv4-only "ipt_ULOG" implementation
+	  which has been obsoleted by the new "nfnetlink_log" code (see
+	  CONFIG_NETFILTER_NETLINK_LOG).
+
 	  This option adds a `ULOG' target, which allows you to create rules in
 	  any iptables table. The packet is passed to a userspace logging
 	  daemon using netlink multicast sockets; unlike the LOG target

net/ipv4/netfilter/arp_tables.c

@@ -716,7 +716,9 @@ static int translate_table(const char *name,
 	}
 
 	/* And one copy for every other CPU */
-	for (i = 1; i < num_possible_cpus(); i++) {
+	for_each_cpu(i) {
+		if (i == 0)
+			continue;
 		memcpy(newinfo->entries + SMP_ALIGN(newinfo->size) * i,
 		       newinfo->entries,
 		       SMP_ALIGN(newinfo->size));
@@ -767,7 +769,7 @@ static void get_counters(const struct arpt_table_info *t,
 	unsigned int cpu;
 	unsigned int i;
 
-	for (cpu = 0; cpu < num_possible_cpus(); cpu++) {
+	for_each_cpu(cpu) {
 		i = 0;
 		ARPT_ENTRY_ITERATE(t->entries + TABLE_OFFSET(t, cpu),
 				   t->size,
@@ -885,7 +887,8 @@ static int do_replace(void __user *user, unsigned int len)
 		return -ENOMEM;
 
 	newinfo = vmalloc(sizeof(struct arpt_table_info)
-			  + SMP_ALIGN(tmp.size) * num_possible_cpus());
+			  + SMP_ALIGN(tmp.size) *
+			  		(highest_possible_processor_id()+1));
 	if (!newinfo)
 		return -ENOMEM;
 
@@ -1158,7 +1161,8 @@ int arpt_register_table(struct arpt_table *table,
 		= { 0, 0, 0, { 0 }, { 0 }, { } };
 
 	newinfo = vmalloc(sizeof(struct arpt_table_info)
-			  + SMP_ALIGN(repl->size) * num_possible_cpus());
+			  + SMP_ALIGN(repl->size) *
+			  		(highest_possible_processor_id()+1));
 	if (!newinfo) {
 		ret = -ENOMEM;
 		return ret;

net/ipv4/netfilter/ip_conntrack_core.c

@@ -1119,7 +1119,7 @@ void __ip_ct_refresh_acct(struct ip_conntrack *ct,
 			unsigned long extra_jiffies,
 			int do_acct)
 {
-	int do_event = 0;
+	int event = 0;
 
 	IP_NF_ASSERT(ct->timeout.data == (unsigned long)ct);
 	IP_NF_ASSERT(skb);
@@ -1129,13 +1129,13 @@ void __ip_ct_refresh_acct(struct ip_conntrack *ct,
 	/* If not in hash table, timer will not be active yet */
 	if (!is_confirmed(ct)) {
 		ct->timeout.expires = extra_jiffies;
-		do_event = 1;
+		event = IPCT_REFRESH;
 	} else {
 		/* Need del_timer for race avoidance (may already be dying). */
 		if (del_timer(&ct->timeout)) {
 			ct->timeout.expires = jiffies + extra_jiffies;
 			add_timer(&ct->timeout);
-			do_event = 1;
+			event = IPCT_REFRESH;
 		}
 	}
 
@@ -1144,14 +1144,17 @@ void __ip_ct_refresh_acct(struct ip_conntrack *ct,
 		ct->counters[CTINFO2DIR(ctinfo)].packets++;
 		ct->counters[CTINFO2DIR(ctinfo)].bytes += 
 						ntohs(skb->nh.iph->tot_len);
+		if ((ct->counters[CTINFO2DIR(ctinfo)].packets & 0x80000000)
+		    || (ct->counters[CTINFO2DIR(ctinfo)].bytes & 0x80000000))
+			event |= IPCT_COUNTER_FILLING;
 	}
 #endif
 
 	write_unlock_bh(&ip_conntrack_lock);
 
 	/* must be unlocked when calling event cache */
-	if (do_event)
+	if (event)
-		ip_conntrack_event_cache(IPCT_REFRESH, skb);
+		ip_conntrack_event_cache(event, skb);
 }
 
 #if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \

net/ipv4/netfilter/ip_conntrack_netlink.c

@@ -177,11 +177,11 @@ ctnetlink_dump_counters(struct sk_buff *skb, const struct ip_conntrack *ct,
 	struct nfattr *nest_count = NFA_NEST(skb, type);
 	u_int64_t tmp;
 
-	tmp = cpu_to_be64(ct->counters[dir].packets);
+	tmp = htonl(ct->counters[dir].packets);
-	NFA_PUT(skb, CTA_COUNTERS_PACKETS, sizeof(u_int64_t), &tmp);
+	NFA_PUT(skb, CTA_COUNTERS32_PACKETS, sizeof(u_int32_t), &tmp);
 
-	tmp = cpu_to_be64(ct->counters[dir].bytes);
+	tmp = htonl(ct->counters[dir].bytes);
-	NFA_PUT(skb, CTA_COUNTERS_BYTES, sizeof(u_int64_t), &tmp);
+	NFA_PUT(skb, CTA_COUNTERS32_BYTES, sizeof(u_int32_t), &tmp);
 
 	NFA_NEST_END(skb, nest_count);
 
@@ -833,7 +833,8 @@ out:
 static inline int
 ctnetlink_change_status(struct ip_conntrack *ct, struct nfattr *cda[])
 {
-	unsigned long d, status = *(u_int32_t *)NFA_DATA(cda[CTA_STATUS-1]);
+	unsigned long d;
+	unsigned status = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_STATUS-1]));
 	d = ct->status ^ status;
 
 	if (d & (IPS_EXPECTED|IPS_CONFIRMED|IPS_DYING))
@@ -948,6 +949,31 @@ ctnetlink_change_timeout(struct ip_conntrack *ct, struct nfattr *cda[])
 	return 0;
 }
 
+static inline int
+ctnetlink_change_protoinfo(struct ip_conntrack *ct, struct nfattr *cda[])
+{
+	struct nfattr *tb[CTA_PROTOINFO_MAX], *attr = cda[CTA_PROTOINFO-1];
+	struct ip_conntrack_protocol *proto;
+	u_int16_t npt = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum;
+	int err = 0;
+
+	if (nfattr_parse_nested(tb, CTA_PROTOINFO_MAX, attr) < 0)
+		goto nfattr_failure;
+
+	proto = ip_conntrack_proto_find_get(npt);
+	if (!proto)
+		return -EINVAL;
+
+	if (proto->from_nfattr)
+		err = proto->from_nfattr(tb, ct);
+	ip_conntrack_proto_put(proto); 
+
+	return err;
+
+nfattr_failure:
+	return -ENOMEM;
+}
+
 static int
 ctnetlink_change_conntrack(struct ip_conntrack *ct, struct nfattr *cda[])
 {
@@ -973,6 +999,12 @@ ctnetlink_change_conntrack(struct ip_conntrack *ct, struct nfattr *cda[])
 			return err;
 	}
 
+	if (cda[CTA_PROTOINFO-1]) {
+		err = ctnetlink_change_protoinfo(ct, cda);
+		if (err < 0)
+			return err;
+	}
+
 	DEBUGP("all done\n");
 	return 0;
 }
@@ -1002,6 +1034,12 @@ ctnetlink_create_conntrack(struct nfattr *cda[],
 	if (err < 0)
 		goto err;
 
+	if (cda[CTA_PROTOINFO-1]) {
+		err = ctnetlink_change_protoinfo(ct, cda);
+		if (err < 0)
+			return err;
+	}
+
 	ct->helper = ip_conntrack_helper_find_get(rtuple);
 
 	add_timer(&ct->timeout);

net/ipv4/netfilter/ip_conntrack_proto_icmp.c

@@ -296,8 +296,7 @@ static int icmp_nfattr_to_tuple(struct nfattr *tb[],
 				struct ip_conntrack_tuple *tuple)
 {
 	if (!tb[CTA_PROTO_ICMP_TYPE-1]
-	    || !tb[CTA_PROTO_ICMP_CODE-1]
+	    || !tb[CTA_PROTO_ICMP_CODE-1])
-	    || !tb[CTA_PROTO_ICMP_ID-1])
 		return -1;
 
 	tuple->dst.u.icmp.type = 

net/ipv4/netfilter/ip_conntrack_proto_tcp.c

@@ -341,17 +341,43 @@ static int tcp_print_conntrack(struct seq_file *s,
 static int tcp_to_nfattr(struct sk_buff *skb, struct nfattr *nfa,
 			 const struct ip_conntrack *ct)
 {
+	struct nfattr *nest_parms = NFA_NEST(skb, CTA_PROTOINFO_TCP);
+	
 	read_lock_bh(&tcp_lock);
 	NFA_PUT(skb, CTA_PROTOINFO_TCP_STATE, sizeof(u_int8_t),
 		&ct->proto.tcp.state);
 	read_unlock_bh(&tcp_lock);
 
+	NFA_NEST_END(skb, nest_parms);
+
 	return 0;
 
 nfattr_failure:
 	read_unlock_bh(&tcp_lock);
 	return -1;
 }
+
+static int nfattr_to_tcp(struct nfattr *cda[], struct ip_conntrack *ct)
+{
+	struct nfattr *attr = cda[CTA_PROTOINFO_TCP-1];
+	struct nfattr *tb[CTA_PROTOINFO_TCP_MAX];
+
+        if (nfattr_parse_nested(tb, CTA_PROTOINFO_TCP_MAX, attr) < 0)
+                goto nfattr_failure;
+
+	if (!tb[CTA_PROTOINFO_TCP_STATE-1])
+		return -EINVAL;
+
+	write_lock_bh(&tcp_lock);
+	ct->proto.tcp.state = 
+		*(u_int8_t *)NFA_DATA(tb[CTA_PROTOINFO_TCP_STATE-1]);
+	write_unlock_bh(&tcp_lock);
+
+	return 0;
+
+nfattr_failure:
+	return -1;
+}
 #endif
 
 static unsigned int get_conntrack_index(const struct tcphdr *tcph)
@@ -1123,6 +1149,7 @@ struct ip_conntrack_protocol ip_conntrack_protocol_tcp =
 #if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
     defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
 	.to_nfattr		= tcp_to_nfattr,
+	.from_nfattr		= nfattr_to_tcp,
 	.tuple_to_nfattr	= ip_ct_port_tuple_to_nfattr,
 	.nfattr_to_tuple	= ip_ct_port_nfattr_to_tuple,
 #endif

net/ipv4/netfilter/ip_tables.c

@@ -27,6 +27,7 @@
 #include <asm/semaphore.h>
 #include <linux/proc_fs.h>
 #include <linux/err.h>
+#include <linux/cpumask.h>
 
 #include <linux/netfilter_ipv4/ip_tables.h>
 
@@ -921,7 +922,9 @@ translate_table(const char *name,
 	}
 
 	/* And one copy for every other CPU */
-	for (i = 1; i < num_possible_cpus(); i++) {
+	for_each_cpu(i) {
+		if (i == 0)
+			continue;
 		memcpy(newinfo->entries + SMP_ALIGN(newinfo->size) * i,
 		       newinfo->entries,
 		       SMP_ALIGN(newinfo->size));
@@ -943,7 +946,7 @@ replace_table(struct ipt_table *table,
 		struct ipt_entry *table_base;
 		unsigned int i;
 
-		for (i = 0; i < num_possible_cpus(); i++) {
+		for_each_cpu(i) {
 			table_base =
 				(void *)newinfo->entries
 				+ TABLE_OFFSET(newinfo, i);
@@ -990,7 +993,7 @@ get_counters(const struct ipt_table_info *t,
 	unsigned int cpu;
 	unsigned int i;
 
-	for (cpu = 0; cpu < num_possible_cpus(); cpu++) {
+	for_each_cpu(cpu) {
 		i = 0;
 		IPT_ENTRY_ITERATE(t->entries + TABLE_OFFSET(t, cpu),
 				  t->size,
@@ -1128,7 +1131,8 @@ do_replace(void __user *user, unsigned int len)
 		return -ENOMEM;
 
 	newinfo = vmalloc(sizeof(struct ipt_table_info)
-			  + SMP_ALIGN(tmp.size) * num_possible_cpus());
+			  + SMP_ALIGN(tmp.size) * 
+			  	(highest_possible_processor_id()+1));
 	if (!newinfo)
 		return -ENOMEM;
 
@@ -1458,7 +1462,8 @@ int ipt_register_table(struct ipt_table *table, const struct ipt_replace *repl)
 		= { 0, 0, 0, { 0 }, { 0 }, { } };
 
 	newinfo = vmalloc(sizeof(struct ipt_table_info)
-			  + SMP_ALIGN(repl->size) * num_possible_cpus());
+			  + SMP_ALIGN(repl->size) * 
+			  		(highest_possible_processor_id()+1));
 	if (!newinfo)
 		return -ENOMEM;
 

net/ipv4/tcp_output.c

@@ -435,7 +435,16 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss
 	int nsize, old_factor;
 	u16 flags;
 
-	BUG_ON(len >= skb->len);
+	if (unlikely(len >= skb->len)) {
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "TCP: seg_size=%u, mss=%u, seq=%u, "
+			       "end_seq=%u, skb->len=%u.\n", len, mss_now,
+			       TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
+			       skb->len);
+			WARN_ON(1);
+		}
+		return 0;
+	}
 
 	nsize = skb_headlen(skb) - len;
 	if (nsize < 0)

net/ipv6/esp6.c

@@ -31,6 +31,7 @@
 #include <net/esp.h>
 #include <asm/scatterlist.h>
 #include <linux/crypto.h>
+#include <linux/kernel.h>
 #include <linux/pfkeyv2.h>
 #include <linux/random.h>
 #include <net/icmp.h>
@@ -66,10 +67,10 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
 
 	alen = esp->auth.icv_trunc_len;
 	tfm = esp->conf.tfm;
-	blksize = (crypto_tfm_alg_blocksize(tfm) + 3) & ~3;
+	blksize = ALIGN(crypto_tfm_alg_blocksize(tfm), 4);
-	clen = (clen + 2 + blksize-1)&~(blksize-1);
+	clen = ALIGN(clen + 2, blksize);
 	if (esp->conf.padlen)
-		clen = (clen + esp->conf.padlen-1)&~(esp->conf.padlen-1);
+		clen = ALIGN(clen, esp->conf.padlen);
 
 	if ((nfrags = skb_cow_data(skb, clen-skb->len+alen, &trailer)) < 0) {
 		goto error;
@@ -133,7 +134,7 @@ static int esp6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, stru
 	struct ipv6_esp_hdr *esph;
 	struct esp_data *esp = x->data;
 	struct sk_buff *trailer;
-	int blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
+	int blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
 	int alen = esp->auth.icv_trunc_len;
 	int elen = skb->len - sizeof(struct ipv6_esp_hdr) - esp->conf.ivlen - alen;
 
@@ -235,16 +236,17 @@ out_nofree:
 static u32 esp6_get_max_size(struct xfrm_state *x, int mtu)
 {
 	struct esp_data *esp = x->data;
-	u32 blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
+	u32 blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
 
 	if (x->props.mode) {
-		mtu = (mtu + 2 + blksize-1)&~(blksize-1);
+		mtu = ALIGN(mtu + 2, blksize);
 	} else {
 		/* The worst case. */
-		mtu += 2 + blksize;
+		u32 padsize = ((blksize - 1) & 7) + 1;
+		mtu = ALIGN(mtu + 2, padsize) + blksize - padsize;
 	}
 	if (esp->conf.padlen)
-		mtu = (mtu + esp->conf.padlen-1)&~(esp->conf.padlen-1);
+		mtu = ALIGN(mtu, esp->conf.padlen);
 
 	return mtu + x->props.header_len + esp->auth.icv_full_len;
 }

net/ipv6/netfilter/ip6_tables.c

@@ -28,6 +28,7 @@
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
 #include <linux/proc_fs.h>
+#include <linux/cpumask.h>
 
 #include <linux/netfilter_ipv6/ip6_tables.h>
 
@@ -950,7 +951,9 @@ translate_table(const char *name,
 	}
 
 	/* And one copy for every other CPU */
-	for (i = 1; i < num_possible_cpus(); i++) {
+	for_each_cpu(i) {
+		if (i == 0)
+			continue;
 		memcpy(newinfo->entries + SMP_ALIGN(newinfo->size) * i,
 		       newinfo->entries,
 		       SMP_ALIGN(newinfo->size));
@@ -973,6 +976,7 @@ replace_table(struct ip6t_table *table,
 		unsigned int i;
 
 		for (i = 0; i < num_possible_cpus(); i++) {
+		for_each_cpu(i) {
 			table_base =
 				(void *)newinfo->entries
 				+ TABLE_OFFSET(newinfo, i);
@@ -1019,7 +1023,7 @@ get_counters(const struct ip6t_table_info *t,
 	unsigned int cpu;
 	unsigned int i;
 
-	for (cpu = 0; cpu < num_possible_cpus(); cpu++) {
+	for_each_cpu(cpu) {
 		i = 0;
 		IP6T_ENTRY_ITERATE(t->entries + TABLE_OFFSET(t, cpu),
 				  t->size,
@@ -1153,7 +1157,8 @@ do_replace(void __user *user, unsigned int len)
 		return -ENOMEM;
 
 	newinfo = vmalloc(sizeof(struct ip6t_table_info)
-			  + SMP_ALIGN(tmp.size) * num_possible_cpus());
+			  + SMP_ALIGN(tmp.size) *
+			  		(highest_possible_processor_id()+1));
 	if (!newinfo)
 		return -ENOMEM;
 
@@ -1467,7 +1472,8 @@ int ip6t_register_table(struct ip6t_table *table,
 		= { 0, 0, 0, { 0 }, { 0 }, { } };
 
 	newinfo = vmalloc(sizeof(struct ip6t_table_info)
-			  + SMP_ALIGN(repl->size) * num_possible_cpus());
+			  + SMP_ALIGN(repl->size) *
+			  		(highest_possible_processor_id()+1));
 	if (!newinfo)
 		return -ENOMEM;
 

net/netfilter/nfnetlink.c

@@ -133,7 +133,7 @@ int nfattr_parse(struct nfattr *tb[], int maxattr, struct nfattr *nfa, int len)
 	memset(tb, 0, sizeof(struct nfattr *) * maxattr);
 
 	while (NFA_OK(nfa, len)) {
-		unsigned flavor = nfa->nfa_type;
+		unsigned flavor = NFA_TYPE(nfa);
 		if (flavor && flavor <= maxattr)
 			tb[flavor-1] = nfa;
 		nfa = NFA_NEXT(nfa, len);
@@ -177,7 +177,7 @@ nfnetlink_check_attributes(struct nfnetlink_subsystem *subsys,
 		int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
 
 		while (NFA_OK(attr, attrlen)) {
-			unsigned flavor = attr->nfa_type;
+			unsigned flavor = NFA_TYPE(attr);
 			if (flavor) {
 				if (flavor > attr_count)
 					return -EINVAL;

net/sched/Kconfig

@@ -72,9 +72,11 @@ config NET_SCH_CLK_GETTIMEOFDAY
 	  Choose this if you need a high resolution clock source but can't use
 	  the CPU's cycle counter.
 
+# don't allow on SMP x86 because they can have unsynchronized TSCs.
+# gettimeofday is a good alternative
 config NET_SCH_CLK_CPU
 	bool "CPU cycle counter"
-	depends on X86_TSC || X86_64 || ALPHA || SPARC64 || PPC64 || IA64
+	depends on ((X86_TSC || X86_64) && !SMP) || ALPHA || SPARC64 || PPC64 || IA64
 	help
 	  Say Y here if you want to use the CPU's cycle counter as clock source.
 	  This is a cheap and high resolution clock source, but on some