[03/22,RESEND] kprobes: unify kprobes_exceptions_nofify() prototypes
Commit Message
From: Arnd Bergmann <arnd@arndb.de>
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.
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/arc/include/asm/kprobes.h | 3 ---
arch/arm/include/asm/kprobes.h | 2 --
arch/arm64/include/asm/kprobes.h | 2 --
arch/mips/include/asm/kprobes.h | 2 --
arch/powerpc/include/asm/kprobes.h | 2 --
arch/s390/include/asm/kprobes.h | 2 --
arch/sh/include/asm/kprobes.h | 2 --
arch/sparc/include/asm/kprobes.h | 2 --
arch/x86/include/asm/kprobes.h | 2 --
include/linux/kprobes.h | 4 ++++
10 files changed, 4 insertions(+), 19 deletions(-)
Comments
On Wed, 8 Nov 2023 13:58:24 +0100
Arnd Bergmann <arnd@kernel.org> wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> 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.
Thanks, let me pick this to linux-trace tree.
>
> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> arch/arc/include/asm/kprobes.h | 3 ---
> arch/arm/include/asm/kprobes.h | 2 --
> arch/arm64/include/asm/kprobes.h | 2 --
> arch/mips/include/asm/kprobes.h | 2 --
> arch/powerpc/include/asm/kprobes.h | 2 --
> arch/s390/include/asm/kprobes.h | 2 --
> arch/sh/include/asm/kprobes.h | 2 --
> arch/sparc/include/asm/kprobes.h | 2 --
> arch/x86/include/asm/kprobes.h | 2 --
> include/linux/kprobes.h | 4 ++++
> 10 files changed, 4 insertions(+), 19 deletions(-)
>
> diff --git a/arch/arc/include/asm/kprobes.h b/arch/arc/include/asm/kprobes.h
> index de1566e32cb8..68e8301c0df2 100644
> --- a/arch/arc/include/asm/kprobes.h
> +++ b/arch/arc/include/asm/kprobes.h
> @@ -32,9 +32,6 @@ struct kprobe;
>
> void arch_remove_kprobe(struct kprobe *p);
>
> -int kprobe_exceptions_notify(struct notifier_block *self,
> - unsigned long val, void *data);
> -
> struct prev_kprobe {
> struct kprobe *kp;
> unsigned long status;
> diff --git a/arch/arm/include/asm/kprobes.h b/arch/arm/include/asm/kprobes.h
> index e26a278d301a..5b8dbf1b0be4 100644
> --- a/arch/arm/include/asm/kprobes.h
> +++ b/arch/arm/include/asm/kprobes.h
> @@ -40,8 +40,6 @@ struct kprobe_ctlblk {
>
> void arch_remove_kprobe(struct kprobe *);
> int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
> -int kprobe_exceptions_notify(struct notifier_block *self,
> - unsigned long val, void *data);
>
> /* optinsn template addresses */
> extern __visible kprobe_opcode_t optprobe_template_entry[];
> diff --git a/arch/arm64/include/asm/kprobes.h b/arch/arm64/include/asm/kprobes.h
> index 05cd82eeca13..be7a3680dadf 100644
> --- a/arch/arm64/include/asm/kprobes.h
> +++ b/arch/arm64/include/asm/kprobes.h
> @@ -37,8 +37,6 @@ struct kprobe_ctlblk {
>
> void arch_remove_kprobe(struct kprobe *);
> int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
> -int kprobe_exceptions_notify(struct notifier_block *self,
> - unsigned long val, void *data);
> void __kretprobe_trampoline(void);
> void __kprobes *trampoline_probe_handler(struct pt_regs *regs);
>
> diff --git a/arch/mips/include/asm/kprobes.h b/arch/mips/include/asm/kprobes.h
> index 68b1e5d458cf..bc27d99c9436 100644
> --- a/arch/mips/include/asm/kprobes.h
> +++ b/arch/mips/include/asm/kprobes.h
> @@ -71,8 +71,6 @@ struct kprobe_ctlblk {
> struct prev_kprobe prev_kprobe;
> };
>
> -extern int kprobe_exceptions_notify(struct notifier_block *self,
> - unsigned long val, void *data);
>
> #endif /* CONFIG_KPROBES */
> #endif /* _ASM_KPROBES_H */
> diff --git a/arch/powerpc/include/asm/kprobes.h b/arch/powerpc/include/asm/kprobes.h
> index c8e4b4fd4e33..4525a9c68260 100644
> --- a/arch/powerpc/include/asm/kprobes.h
> +++ b/arch/powerpc/include/asm/kprobes.h
> @@ -84,8 +84,6 @@ struct arch_optimized_insn {
> kprobe_opcode_t *insn;
> };
>
> -extern int kprobe_exceptions_notify(struct notifier_block *self,
> - unsigned long val, void *data);
> extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
> extern int kprobe_handler(struct pt_regs *regs);
> extern int kprobe_post_handler(struct pt_regs *regs);
> diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h
> index 21b9e5290c04..01f1682a73b7 100644
> --- a/arch/s390/include/asm/kprobes.h
> +++ b/arch/s390/include/asm/kprobes.h
> @@ -73,8 +73,6 @@ struct kprobe_ctlblk {
> void arch_remove_kprobe(struct kprobe *p);
>
> int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
> -int kprobe_exceptions_notify(struct notifier_block *self,
> - unsigned long val, void *data);
>
> #define flush_insn_slot(p) do { } while (0)
>
> diff --git a/arch/sh/include/asm/kprobes.h b/arch/sh/include/asm/kprobes.h
> index eeba83e0a7d2..65d4c3316a5b 100644
> --- a/arch/sh/include/asm/kprobes.h
> +++ b/arch/sh/include/asm/kprobes.h
> @@ -46,8 +46,6 @@ struct kprobe_ctlblk {
> };
>
> extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
> -extern int kprobe_exceptions_notify(struct notifier_block *self,
> - unsigned long val, void *data);
> extern int kprobe_handle_illslot(unsigned long pc);
> #else
>
> diff --git a/arch/sparc/include/asm/kprobes.h b/arch/sparc/include/asm/kprobes.h
> index 06c2bc767ef7..aec742cd898f 100644
> --- a/arch/sparc/include/asm/kprobes.h
> +++ b/arch/sparc/include/asm/kprobes.h
> @@ -47,8 +47,6 @@ struct kprobe_ctlblk {
> struct prev_kprobe prev_kprobe;
> };
>
> -int kprobe_exceptions_notify(struct notifier_block *self,
> - unsigned long val, void *data);
> int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
> asmlinkage void __kprobes kprobe_trap(unsigned long trap_level,
> struct pt_regs *regs);
> diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
> index a2e9317aad49..5939694dfb28 100644
> --- a/arch/x86/include/asm/kprobes.h
> +++ b/arch/x86/include/asm/kprobes.h
> @@ -113,8 +113,6 @@ struct kprobe_ctlblk {
> };
>
> extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
> -extern int kprobe_exceptions_notify(struct notifier_block *self,
> - unsigned long val, void *data);
> extern int kprobe_int3_handler(struct pt_regs *regs);
>
> #else
> diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
> index 365eb092e9c4..ab1da3142b06 100644
> --- a/include/linux/kprobes.h
> +++ b/include/linux/kprobes.h
> @@ -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)
> --
> 2.39.2
>
@@ -32,9 +32,6 @@ struct kprobe;
void arch_remove_kprobe(struct kprobe *p);
-int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
-
struct prev_kprobe {
struct kprobe *kp;
unsigned long status;
@@ -40,8 +40,6 @@ struct kprobe_ctlblk {
void arch_remove_kprobe(struct kprobe *);
int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
-int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
/* optinsn template addresses */
extern __visible kprobe_opcode_t optprobe_template_entry[];
@@ -37,8 +37,6 @@ struct kprobe_ctlblk {
void arch_remove_kprobe(struct kprobe *);
int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
-int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
void __kretprobe_trampoline(void);
void __kprobes *trampoline_probe_handler(struct pt_regs *regs);
@@ -71,8 +71,6 @@ struct kprobe_ctlblk {
struct prev_kprobe prev_kprobe;
};
-extern int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
#endif /* CONFIG_KPROBES */
#endif /* _ASM_KPROBES_H */
@@ -84,8 +84,6 @@ struct arch_optimized_insn {
kprobe_opcode_t *insn;
};
-extern int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
extern int kprobe_handler(struct pt_regs *regs);
extern int kprobe_post_handler(struct pt_regs *regs);
@@ -73,8 +73,6 @@ struct kprobe_ctlblk {
void arch_remove_kprobe(struct kprobe *p);
int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
-int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
#define flush_insn_slot(p) do { } while (0)
@@ -46,8 +46,6 @@ struct kprobe_ctlblk {
};
extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
-extern int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
extern int kprobe_handle_illslot(unsigned long pc);
#else
@@ -47,8 +47,6 @@ struct kprobe_ctlblk {
struct prev_kprobe prev_kprobe;
};
-int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
asmlinkage void __kprobes kprobe_trap(unsigned long trap_level,
struct pt_regs *regs);
@@ -113,8 +113,6 @@ struct kprobe_ctlblk {
};
extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
-extern int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
extern int kprobe_int3_handler(struct pt_regs *regs);
#else
@@ -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)