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arch: add missing prepare_ftrace_return() prototypes

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The prototype for prepare_ftrace_return() is architecture specific and
can't be in a global header. Since it's normally called from assembly,
it doesn't really need a prototype, but we get a warning if it's missing:

arch/csky/kernel/ftrace.c:147:6: error: no previous prototype for 'prepare_ftrace_return' [-Werror=missing-prototypes]
arch/microblaze/kernel/ftrace.c:22:6: error: no previous prototype for 'prepare_ftrace_return' [-Werror=missing-prototypes]
arch/mips/kernel/ftrace.c:305:6: error: no previous prototype for 'prepare_ftrace_return' [-Werror=missing-prototypes]

Add the prototypes for the three architectures that don't already have
one in asm/ftrace.h.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2023-08-09 12:07:56 +02:00
parent 42874e4eb3
commit 1d6571a879
3 changed files with 9 additions and 0 deletions
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4
arch/csky/include/asm/ftrace.h
View File

@ -26,5 +26,9 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr)
struct dyn_arch_ftrace {
};
void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
unsigned long frame_pointer);
#endif /* !__ASSEMBLY__ */
#endif /* __ASM_CSKY_FTRACE_H */

1
arch/microblaze/include/asm/ftrace.h
View File

@ -10,6 +10,7 @@
#ifndef __ASSEMBLY__
extern void _mcount(void);
extern void ftrace_call_graph(void);
void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr);
#endif
#ifdef CONFIG_DYNAMIC_FTRACE

4
arch/mips/include/asm/ftrace.h
View File

@ -85,6 +85,10 @@ struct dyn_arch_ftrace {
};
#endif /* CONFIG_DYNAMIC_FTRACE */
void prepare_ftrace_return(unsigned long *parent_ra_addr, unsigned long self_ra,
unsigned long fp);
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_FUNCTION_TRACER */
#endif /* _ASM_MIPS_FTRACE_H */