diff mbox series

[RESEND] MIPS: ftrace: Declare ftrace_get_parent_ra_addr() as static

Message ID 527F9AFF0430AB45+20250104144708.18438-1-wangyuli@uniontech.com (mailing list archive)
State New
Headers show
Series [RESEND] MIPS: ftrace: Declare ftrace_get_parent_ra_addr() as static | expand

Commit Message

WangYuli Jan. 4, 2025, 2:47 p.m. UTC
Declare ftrace_get_parent_ra_addr() as static to suppress clang
compiler warning that 'no previous prototype'. This function is
not intended to be called from other parts.

Fix follow error with clang-19:

arch/mips/kernel/ftrace.c:251:15: error: no previous prototype for function 'ftrace_get_parent_ra_addr' [-Werror,-Wmissing-prototypes]
  251 | unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
      |               ^
arch/mips/kernel/ftrace.c:251:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
  251 | unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
      | ^
      | static
1 error generated.

Signed-off-by: WangYuli <wangyuli@uniontech.com>
---
 arch/mips/kernel/ftrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Masami Hiramatsu (Google) Jan. 5, 2025, 8:37 a.m. UTC | #1
On Sat,  4 Jan 2025 22:47:08 +0800
WangYuli <wangyuli@uniontech.com> wrote:

> Declare ftrace_get_parent_ra_addr() as static to suppress clang
> compiler warning that 'no previous prototype'. This function is
> not intended to be called from other parts.
> 
> Fix follow error with clang-19:
> 
> arch/mips/kernel/ftrace.c:251:15: error: no previous prototype for function 'ftrace_get_parent_ra_addr' [-Werror,-Wmissing-prototypes]
>   251 | unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
>       |               ^
> arch/mips/kernel/ftrace.c:251:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
>   251 | unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
>       | ^
>       | static
> 1 error generated.

Looks good to me.

Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>


Thanks,

> 
> Signed-off-by: WangYuli <wangyuli@uniontech.com>
> ---
>  arch/mips/kernel/ftrace.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
> index 8c401e42301c..f39e85fd58fa 100644
> --- a/arch/mips/kernel/ftrace.c
> +++ b/arch/mips/kernel/ftrace.c
> @@ -248,7 +248,7 @@ int ftrace_disable_ftrace_graph_caller(void)
>  #define S_R_SP	(0xafb0 << 16)	/* s{d,w} R, offset(sp) */
>  #define OFFSET_MASK	0xffff	/* stack offset range: 0 ~ PT_SIZE */
>  
> -unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
> +static unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
>  		old_parent_ra, unsigned long parent_ra_addr, unsigned long fp)
>  {
>  	unsigned long sp, ip, tmp;
> -- 
> 2.45.2
>
Steven Rostedt Jan. 6, 2025, 8:22 p.m. UTC | #2
On Sun, 5 Jan 2025 17:37:47 +0900
Masami Hiramatsu (Google) <mhiramat@kernel.org> wrote:

> On Sat,  4 Jan 2025 22:47:08 +0800
> WangYuli <wangyuli@uniontech.com> wrote:
> 
> > Declare ftrace_get_parent_ra_addr() as static to suppress clang
> > compiler warning that 'no previous prototype'. This function is
> > not intended to be called from other parts.
> > 
> > Fix follow error with clang-19:
> > 
> > arch/mips/kernel/ftrace.c:251:15: error: no previous prototype for function 'ftrace_get_parent_ra_addr' [-Werror,-Wmissing-prototypes]
> >   251 | unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
> >       |               ^
> > arch/mips/kernel/ftrace.c:251:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
> >   251 | unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
> >       | ^
> >       | static
> > 1 error generated.  
> 
> Looks good to me.
> 
> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
> 

Note, this should go through the MIPS tree.

-- Steve
diff mbox series

Patch

diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index 8c401e42301c..f39e85fd58fa 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -248,7 +248,7 @@  int ftrace_disable_ftrace_graph_caller(void)
 #define S_R_SP	(0xafb0 << 16)	/* s{d,w} R, offset(sp) */
 #define OFFSET_MASK	0xffff	/* stack offset range: 0 ~ PT_SIZE */
 
-unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
+static unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
 		old_parent_ra, unsigned long parent_ra_addr, unsigned long fp)
 {
 	unsigned long sp, ip, tmp;