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kprobes: unify kprobes_exceptions_nofify() prototypes

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Most architectures that support kprobes declare this function in their
own asm/kprobes.h header and provide an override, but some are missing
the prototype, which causes a warning for the __weak stub implementation:

kernel/kprobes.c:1865:12: error: no previous prototype for 'kprobe_exceptions_notify' [-Werror=missing-prototypes]
 1865 | int __weak kprobe_exceptions_notify(struct notifier_block *self,

Move the prototype into linux/kprobes.h so it is visible to all
the definitions.

Link: https://lore.kernel.org/all/20231108125843.3806765-4-arnd@kernel.org/

Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
This commit is contained in:
Arnd Bergmann 2023-11-10 19:59:05 +09:00 • committed by Masami Hiramatsu (Google)
parent 3afe733729
commit abc28463c8
10 changed files with 4 additions and 19 deletions
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4
include/linux/kprobes.h
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@ -445,6 +445,10 @@ int kprobe_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
int arch_kprobe_get_kallsym(unsigned int *symnum, unsigned long *value,
char *type, char *sym);
int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data);
#else /* !CONFIG_KPROBES: */
static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)