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kprobes: Fix coding style issues

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Fix coding style issues reported by checkpatch.pl and update
comments to quote variable names and add "()" to function
name.
One TODO comment in __disarm_kprobe() is removed because
it has been done by following commit.

Link: https://lkml.kernel.org/r/163163037468.489837.4282347782492003960.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Masami Hiramatsu 2021-09-14 23:39:34 +09:00 • committed by Steven Rostedt (VMware)
parent 9c89bb8e32
commit 223a76b268
2 changed files with 145 additions and 131 deletions
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40
include/linux/kprobes.h
View file

@ -3,7 +3,6 @@
#define _LINUX_KPROBES_H
/*
* Kernel Probes (KProbes)
* include/linux/kprobes.h
*
* Copyright (C) IBM Corporation, 2002, 2004
*
@ -39,7 +38,7 @@
#define KPROBE_REENTER 0x00000004
#define KPROBE_HIT_SSDONE 0x00000008
#else /* CONFIG_KPROBES */
#else /* !CONFIG_KPROBES */
#include <asm-generic/kprobes.h>
typedef int kprobe_opcode_t;
struct arch_specific_insn {
@ -228,7 +227,7 @@ static nokprobe_inline struct kretprobe *get_kretprobe(struct kretprobe_instance
return READ_ONCE(ri->rph->rp);
}
#else /* CONFIG_KRETPROBES */
#else /* !CONFIG_KRETPROBES */
static inline void arch_prepare_kretprobe(struct kretprobe *rp,
struct pt_regs *regs)
{
@ -239,11 +238,15 @@ static inline int arch_trampoline_kprobe(struct kprobe *p)
}
#endif /* CONFIG_KRETPROBES */
/* Markers of '_kprobe_blacklist' section */
extern unsigned long __start_kprobe_blacklist[];
extern unsigned long __stop_kprobe_blacklist[];
extern struct kretprobe_blackpoint kretprobe_blacklist[];
#ifdef CONFIG_KPROBES_SANITY_TEST
extern int init_test_probes(void);
#else
#else /* !CONFIG_KPROBES_SANITY_TEST */
static inline int init_test_probes(void)
{
return 0;
@ -303,7 +306,7 @@ static inline bool is_kprobe_##__name##_slot(unsigned long addr) \
#define KPROBE_OPTINSN_PAGE_SYM "kprobe_optinsn_page"
int kprobe_cache_get_kallsym(struct kprobe_insn_cache *c, unsigned int *symnum,
unsigned long *value, char *type, char *sym);
#else /* __ARCH_WANT_KPROBES_INSN_SLOT */
#else /* !__ARCH_WANT_KPROBES_INSN_SLOT */
#define DEFINE_INSN_CACHE_OPS(__name) \
static inline bool is_kprobe_##__name##_slot(unsigned long addr) \
{ \
@ -345,11 +348,12 @@ extern int sysctl_kprobes_optimization;
extern int proc_kprobes_optimization_handler(struct ctl_table *table,
int write, void *buffer,
size_t *length, loff_t *ppos);
#endif
#endif /* CONFIG_SYSCTL */
extern void wait_for_kprobe_optimizer(void);
#else
#else /* !CONFIG_OPTPROBES */
static inline void wait_for_kprobe_optimizer(void) { }
#endif /* CONFIG_OPTPROBES */
#ifdef CONFIG_KPROBES_ON_FTRACE
extern void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *ops, struct ftrace_regs *fregs);
@ -359,7 +363,7 @@ static inline int arch_prepare_kprobe_ftrace(struct kprobe *p)
{
return -EINVAL;
}
#endif
#endif /* CONFIG_KPROBES_ON_FTRACE */
/* Get the kprobe at this addr (if any) - called with preemption disabled */
struct kprobe *get_kprobe(void *addr);
@ -367,7 +371,7 @@ struct kprobe *get_kprobe(void *addr);
/* kprobe_running() will just return the current_kprobe on this CPU */
static inline struct kprobe *kprobe_running(void)
{
return (__this_cpu_read(current_kprobe));
return __this_cpu_read(current_kprobe);
}
static inline void reset_current_kprobe(void)
@ -431,11 +435,11 @@ static inline struct kprobe *kprobe_running(void)
}
static inline int register_kprobe(struct kprobe *p)
{
return -ENOSYS;
return -EOPNOTSUPP;
}
static inline int register_kprobes(struct kprobe **kps, int num)
{
return -ENOSYS;
return -EOPNOTSUPP;
}
static inline void unregister_kprobe(struct kprobe *p)
{
@ -445,11 +449,11 @@ static inline void unregister_kprobes(struct kprobe **kps, int num)
}
static inline int register_kretprobe(struct kretprobe *rp)
{
return -ENOSYS;
return -EOPNOTSUPP;
}
static inline int register_kretprobes(struct kretprobe **rps, int num)
{
return -ENOSYS;
return -EOPNOTSUPP;
}
static inline void unregister_kretprobe(struct kretprobe *rp)
{
@ -465,11 +469,11 @@ static inline void kprobe_free_init_mem(void)
}
static inline int disable_kprobe(struct kprobe *kp)
{
return -ENOSYS;
return -EOPNOTSUPP;
}
static inline int enable_kprobe(struct kprobe *kp)
{
return -ENOSYS;
return -EOPNOTSUPP;
}
static inline bool within_kprobe_blacklist(unsigned long addr)
@ -482,6 +486,7 @@ static inline int kprobe_get_kallsym(unsigned int symnum, unsigned long *value,
return -ERANGE;
}
#endif /* CONFIG_KPROBES */
static inline int disable_kretprobe(struct kretprobe *rp)
{
return disable_kprobe(&rp->kp);
@ -496,13 +501,14 @@ static inline bool is_kprobe_insn_slot(unsigned long addr)
{
return false;
}
#endif
#endif /* !CONFIG_KPROBES */
#ifndef CONFIG_OPTPROBES
static inline bool is_kprobe_optinsn_slot(unsigned long addr)
{
return false;
}
#endif
#endif /* !CONFIG_OPTPROBES */
/* Returns true if kprobes handled the fault */
static nokprobe_inline bool kprobe_page_fault(struct pt_regs *regs,