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Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1

Browse source 
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Merge tag 'for-linus' of git://github.com/rustyrussell/linux

Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999  BFCB D920 0E6C D1AD B8F1

* tag 'for-linus' of git://github.com/rustyrussell/linux:
  module_param: check that bool parameters really are bool.
  intelfbdrv.c: bailearly is an int module_param
  paride/pcd: fix bool verbose module parameter.
  module_param: make bool parameters really bool (drivers & misc)
  module_param: make bool parameters really bool (arch)
  module_param: make bool parameters really bool (core code)
  kernel/async: remove redundant declaration.
  printk: fix unnecessary module_param_name.
  lirc_parallel: fix module parameter description.
  module_param: avoid bool abuse, add bint for special cases.
  module_param: check type correctness for module_param_array
  modpost: use linker section to generate table.
  modpost: use a table rather than a giant if/else statement.
  modules: sysfs - export: taint, coresize, initsize
  kernel/params: replace DEBUGP with pr_debug
  module: replace DEBUGP with pr_debug
  module: struct module_ref should contains long fields
  module: Fix performance regression on modules with large symbol tables
  module: Add comments describing how the "strmap" logic works

Fix up conflicts in scripts/mod/file2alias.c due to the new linker-
generated table approach to adding __mod_*_device_table entries.  The
ARM sa11x0 mcp bus needed to be converted to that too.
This commit is contained in:
Linus Torvalds 2012-01-14 12:32:16 -08:00
commit 0a80939b3e
313 changed files with 794 additions and 759 deletions
Download patch file Download diff file Expand all files Collapse all files

217
scripts/mod/file2alias.c
View file

@ -28,6 +28,7 @@ typedef Elf64_Addr kernel_ulong_t;
#endif
#include <ctype.h>
#include <stdbool.h>
typedef uint32_t __u32;
typedef uint16_t __u16;
@ -38,6 +39,35 @@ typedef unsigned char __u8;
* we handle those differences explicitly below */
#include "../../include/linux/mod_devicetable.h"
/* This array collects all instances that use the generic do_table */
struct devtable {
const char *device_id; /* name of table, __mod_<name>_device_table. */
unsigned long id_size;
void *function;
};
/* We construct a table of pointers in an ELF section (pointers generally
* go unpadded by gcc). ld creates boundary syms for us. */
extern struct devtable *__start___devtable[], *__stop___devtable[];
#define ___cat(a,b) a ## b
#define __cat(a,b) ___cat(a,b)
#if __GNUC__ == 3 && __GNUC_MINOR__ < 3
# define __used __attribute__((__unused__))
#else
# define __used __attribute__((__used__))
#endif
/* Add a table entry. We test function type matches while we're here. */
#define ADD_TO_DEVTABLE(device_id, type, function) \
static struct devtable __cat(devtable,__LINE__) = { \
device_id + 0*sizeof((function)((const char *)NULL, \
(type *)NULL, \
(char *)NULL)), \
sizeof(type), (function) }; \
static struct devtable *__attribute__((section("__devtable"))) \
__used __cat(devtable_ptr,__LINE__) = &__cat(devtable,__LINE__)
#define ADD(str, sep, cond, field) \
do { \
strcat(str, sep); \
@ -289,6 +319,7 @@ static int do_hid_entry(const char *filename,
return 1;
}
ADD_TO_DEVTABLE("hid", struct hid_device_id, do_hid_entry);
/* Looks like: ieee1394:venNmoNspNverN */
static int do_ieee1394_entry(const char *filename,
@ -313,6 +344,7 @@ static int do_ieee1394_entry(const char *filename,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("ieee1394", struct ieee1394_device_id, do_ieee1394_entry);
/* Looks like: pci:vNdNsvNsdNbcNscNiN. */
static int do_pci_entry(const char *filename,
@ -356,6 +388,7 @@ static int do_pci_entry(const char *filename,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("pci", struct pci_device_id, do_pci_entry);
/* looks like: "ccw:tNmNdtNdmN" */
static int do_ccw_entry(const char *filename,
@ -379,6 +412,7 @@ static int do_ccw_entry(const char *filename,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("ccw", struct ccw_device_id, do_ccw_entry);
/* looks like: "ap:tN" */
static int do_ap_entry(const char *filename,
@ -387,6 +421,7 @@ static int do_ap_entry(const char *filename,
sprintf(alias, "ap:t%02X*", id->dev_type);
return 1;
}
ADD_TO_DEVTABLE("ap", struct ap_device_id, do_ap_entry);
/* looks like: "css:tN" */
static int do_css_entry(const char *filename,
@ -395,6 +430,7 @@ static int do_css_entry(const char *filename,
sprintf(alias, "css:t%01X", id->type);
return 1;
}
ADD_TO_DEVTABLE("css", struct css_device_id, do_css_entry);
/* Looks like: "serio:tyNprNidNexN" */
static int do_serio_entry(const char *filename,
@ -414,6 +450,7 @@ static int do_serio_entry(const char *filename,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("serio", struct serio_device_id, do_serio_entry);
/* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
static int do_acpi_entry(const char *filename,
@ -422,6 +459,7 @@ static int do_acpi_entry(const char *filename,
sprintf(alias, "acpi*:%s:*", id->id);
return 1;
}
ADD_TO_DEVTABLE("acpi", struct acpi_device_id, do_acpi_entry);
/* looks like: "pnp:dD" */
static void do_pnp_device_entry(void *symval, unsigned long size,
@ -544,8 +582,7 @@ static int do_pcmcia_entry(const char *filename,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("pcmcia", struct pcmcia_device_id, do_pcmcia_entry);
static int do_of_entry (const char *filename, struct of_device_id *of, char *alias)
{
@ -568,6 +605,7 @@ static int do_of_entry (const char *filename, struct of_device_id *of, char *ali
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("of", struct of_device_id, do_of_entry);
static int do_vio_entry(const char *filename, struct vio_device_id *vio,
char *alias)
@ -585,6 +623,7 @@ static int do_vio_entry(const char *filename, struct vio_device_id *vio,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("vio", struct vio_device_id, do_vio_entry);
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
@ -640,6 +679,7 @@ static int do_input_entry(const char *filename, struct input_device_id *id,
do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX);
return 1;
}
ADD_TO_DEVTABLE("input", struct input_device_id, do_input_entry);
static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
char *alias)
@ -650,6 +690,7 @@ static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
strcat(alias, "*");
return 1;
}
ADD_TO_DEVTABLE("eisa", struct eisa_device_id, do_eisa_entry);
/* Looks like: parisc:tNhvNrevNsvN */
static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
@ -669,6 +710,7 @@ static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("parisc", struct parisc_device_id, do_parisc_entry);
/* Looks like: sdio:cNvNdN. */
static int do_sdio_entry(const char *filename,
@ -685,6 +727,7 @@ static int do_sdio_entry(const char *filename,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("sdio", struct sdio_device_id, do_sdio_entry);
/* Looks like: ssb:vNidNrevN. */
static int do_ssb_entry(const char *filename,
@ -701,6 +744,7 @@ static int do_ssb_entry(const char *filename,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("ssb", struct ssb_device_id, do_ssb_entry);
/* Looks like: bcma:mNidNrevNclN. */
static int do_bcma_entry(const char *filename,
@ -719,6 +763,7 @@ static int do_bcma_entry(const char *filename,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("bcma", struct bcma_device_id, do_bcma_entry);
/* Looks like: virtio:dNvN */
static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
@ -734,6 +779,7 @@ static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
add_wildcard(alias);
return 1;
}
ADD_TO_DEVTABLE("virtio", struct virtio_device_id, do_virtio_entry);
/*
* Looks like: vmbus:guid
@ -755,6 +801,7 @@ static int do_vmbus_entry(const char *filename, struct hv_vmbus_device_id *id,
return 1;
}
ADD_TO_DEVTABLE("vmbus", struct hv_vmbus_device_id, do_vmbus_entry);
/* Looks like: i2c:S */
static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
@ -764,6 +811,7 @@ static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
return 1;
}
ADD_TO_DEVTABLE("i2c", struct i2c_device_id, do_i2c_entry);
/* Looks like: spi:S */
static int do_spi_entry(const char *filename, struct spi_device_id *id,
@ -773,6 +821,7 @@ static int do_spi_entry(const char *filename, struct spi_device_id *id,
return 1;
}
ADD_TO_DEVTABLE("spi", struct spi_device_id, do_spi_entry);
/* Looks like: mcp:S */
static int do_mcp_entry(const char *filename, struct mcp_device_id *id,
@ -782,6 +831,7 @@ static int do_mcp_entry(const char *filename, struct mcp_device_id *id,
return 1;
}
ADD_TO_DEVTABLE("mcp", struct mcp_device_id, do_mcp_entry);
static const struct dmifield {
const char *prefix;
@ -836,6 +886,7 @@ static int do_dmi_entry(const char *filename, struct dmi_system_id *id,
strcat(alias, ":");
return 1;
}
ADD_TO_DEVTABLE("dmi", struct dmi_system_id, do_dmi_entry);
static int do_platform_entry(const char *filename,
struct platform_device_id *id, char *alias)
@ -843,6 +894,7 @@ static int do_platform_entry(const char *filename,
sprintf(alias, PLATFORM_MODULE_PREFIX "%s", id->name);
return 1;
}
ADD_TO_DEVTABLE("platform", struct platform_device_id, do_platform_entry);
static int do_mdio_entry(const char *filename,
struct mdio_device_id *id, char *alias)
@ -865,6 +917,7 @@ static int do_mdio_entry(const char *filename,
return 1;
}
ADD_TO_DEVTABLE("mdio", struct mdio_device_id, do_mdio_entry);
/* Looks like: zorro:iN. */
static int do_zorro_entry(const char *filename, struct zorro_device_id *id,
@ -875,6 +928,7 @@ static int do_zorro_entry(const char *filename, struct zorro_device_id *id,
ADD(alias, "i", id->id != ZORRO_WILDCARD, id->id);
return 1;
}
ADD_TO_DEVTABLE("zorro", struct zorro_device_id, do_zorro_entry);
/* looks like: "pnp:dD" */
static int do_isapnp_entry(const char *filename,
@ -888,6 +942,7 @@ static int do_isapnp_entry(const char *filename,
(id->function >> 12) & 0x0f, (id->function >> 8) & 0x0f);
return 1;
}
ADD_TO_DEVTABLE("isa", struct isapnp_device_id, do_isapnp_entry);
/*
* Append a match expression for a single masked hex digit.
@ -956,16 +1011,15 @@ static int do_amba_entry(const char *filename,
return 1;
}
ADD_TO_DEVTABLE("amba", struct amba_id, do_amba_entry);
/* Ignore any prefix, eg. some architectures prepend _ */
static inline int sym_is(const char *symbol, const char *name)
/* Does namelen bytes of name exactly match the symbol? */
static bool sym_is(const char *name, unsigned namelen, const char *symbol)
{
const char *match;
if (namelen != strlen(symbol))
return false;
match = strstr(symbol, name);
if (!match)
return 0;
return match[strlen(name)] == '\0';
return memcmp(name, symbol, namelen) == 0;
}
static void do_table(void *symval, unsigned long size,
@ -998,11 +1052,25 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
{
void *symval;
char *zeros = NULL;
const char *name;
unsigned int namelen;
/* We're looking for a section relative symbol */
if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
return;
/* All our symbols are of form <prefix>__mod_XXX_device_table. */
name = strstr(symname, "__mod_");
if (!name)
return;
name += strlen("__mod_");
namelen = strlen(name);
if (namelen < strlen("_device_table"))
return;
if (strcmp(name + namelen - strlen("_device_table"), "_device_table"))
return;
namelen -= strlen("_device_table");
/* Handle all-NULL symbols allocated into .bss */
if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
zeros = calloc(1, sym->st_size);
@ -1013,125 +1081,24 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
+ sym->st_value;
}
if (sym_is(symname, "__mod_pci_device_table"))
do_table(symval, sym->st_size,
sizeof(struct pci_device_id), "pci",
do_pci_entry, mod);
else if (sym_is(symname, "__mod_usb_device_table"))
/* special case to handle bcdDevice ranges */
/* First handle the "special" cases */
if (sym_is(name, namelen, "usb"))
do_usb_table(symval, sym->st_size, mod);
else if (sym_is(symname, "__mod_hid_device_table"))
do_table(symval, sym->st_size,
sizeof(struct hid_device_id), "hid",
do_hid_entry, mod);
else if (sym_is(symname, "__mod_ieee1394_device_table"))
do_table(symval, sym->st_size,
sizeof(struct ieee1394_device_id), "ieee1394",
do_ieee1394_entry, mod);
else if (sym_is(symname, "__mod_ccw_device_table"))
do_table(symval, sym->st_size,
sizeof(struct ccw_device_id), "ccw",
do_ccw_entry, mod);
else if (sym_is(symname, "__mod_ap_device_table"))
do_table(symval, sym->st_size,
sizeof(struct ap_device_id), "ap",
do_ap_entry, mod);
else if (sym_is(symname, "__mod_css_device_table"))
do_table(symval, sym->st_size,
sizeof(struct css_device_id), "css",
do_css_entry, mod);
else if (sym_is(symname, "__mod_serio_device_table"))
do_table(symval, sym->st_size,
sizeof(struct serio_device_id), "serio",
do_serio_entry, mod);
else if (sym_is(symname, "__mod_acpi_device_table"))
do_table(symval, sym->st_size,
sizeof(struct acpi_device_id), "acpi",
do_acpi_entry, mod);
else if (sym_is(symname, "__mod_pnp_device_table"))
else if (sym_is(name, namelen, "pnp"))
do_pnp_device_entry(symval, sym->st_size, mod);
else if (sym_is(symname, "__mod_pnp_card_device_table"))
else if (sym_is(name, namelen, "pnp_card"))
do_pnp_card_entries(symval, sym->st_size, mod);
else if (sym_is(symname, "__mod_pcmcia_device_table"))
do_table(symval, sym->st_size,
sizeof(struct pcmcia_device_id), "pcmcia",
do_pcmcia_entry, mod);
else if (sym_is(symname, "__mod_of_device_table"))
do_table(symval, sym->st_size,
sizeof(struct of_device_id), "of",
do_of_entry, mod);
else if (sym_is(symname, "__mod_vio_device_table"))
do_table(symval, sym->st_size,
sizeof(struct vio_device_id), "vio",
do_vio_entry, mod);
else if (sym_is(symname, "__mod_input_device_table"))
do_table(symval, sym->st_size,
sizeof(struct input_device_id), "input",
do_input_entry, mod);
else if (sym_is(symname, "__mod_eisa_device_table"))
do_table(symval, sym->st_size,
sizeof(struct eisa_device_id), "eisa",
do_eisa_entry, mod);
else if (sym_is(symname, "__mod_parisc_device_table"))
do_table(symval, sym->st_size,
sizeof(struct parisc_device_id), "parisc",
do_parisc_entry, mod);
else if (sym_is(symname, "__mod_sdio_device_table"))
do_table(symval, sym->st_size,
sizeof(struct sdio_device_id), "sdio",
do_sdio_entry, mod);
else if (sym_is(symname, "__mod_ssb_device_table"))
do_table(symval, sym->st_size,
sizeof(struct ssb_device_id), "ssb",
do_ssb_entry, mod);
else if (sym_is(symname, "__mod_bcma_device_table"))
do_table(symval, sym->st_size,
sizeof(struct bcma_device_id), "bcma",
do_bcma_entry, mod);
else if (sym_is(symname, "__mod_virtio_device_table"))
do_table(symval, sym->st_size,
sizeof(struct virtio_device_id), "virtio",
do_virtio_entry, mod);
else if (sym_is(symname, "__mod_vmbus_device_table"))
do_table(symval, sym->st_size,
sizeof(struct hv_vmbus_device_id), "vmbus",
do_vmbus_entry, mod);
else if (sym_is(symname, "__mod_i2c_device_table"))
do_table(symval, sym->st_size,
sizeof(struct i2c_device_id), "i2c",
do_i2c_entry, mod);
else if (sym_is(symname, "__mod_spi_device_table"))
do_table(symval, sym->st_size,
sizeof(struct spi_device_id), "spi",
do_spi_entry, mod);
else if (sym_is(symname, "__mod_mcp_device_table"))
do_table(symval, sym->st_size,
sizeof(struct mcp_device_id), "mcp",
do_mcp_entry, mod);
else if (sym_is(symname, "__mod_dmi_device_table"))
do_table(symval, sym->st_size,
sizeof(struct dmi_system_id), "dmi",
do_dmi_entry, mod);
else if (sym_is(symname, "__mod_platform_device_table"))
do_table(symval, sym->st_size,
sizeof(struct platform_device_id), "platform",
do_platform_entry, mod);
else if (sym_is(symname, "__mod_mdio_device_table"))
do_table(symval, sym->st_size,
sizeof(struct mdio_device_id), "mdio",
do_mdio_entry, mod);
else if (sym_is(symname, "__mod_zorro_device_table"))
do_table(symval, sym->st_size,
sizeof(struct zorro_device_id), "zorro",
do_zorro_entry, mod);
else if (sym_is(symname, "__mod_isapnp_device_table"))
do_table(symval, sym->st_size,
sizeof(struct isapnp_device_id), "isa",
do_isapnp_entry, mod);
else if (sym_is(symname, "__mod_amba_device_table"))
do_table(symval, sym->st_size,
sizeof(struct amba_id), "amba",
do_amba_entry, mod);
else {
struct devtable **p;
for (p = __start___devtable; p < __stop___devtable; p++) {
if (sym_is(name, namelen, (*p)->device_id)) {
do_table(symval, sym->st_size, (*p)->id_size,
(*p)->device_id, (*p)->function, mod);
break;
}
}
}
free(zeros);
}