linux-kernel - [PATCH 5.4~6.13] MIPS: ftrace: Declare ftrace_get_parent_ra

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Message-ID: <6832B20AFE3B7328+20250206102548.95302-1-wangyuli@uniontech.com>
Date: Thu,  6 Feb 2025 18:25:48 +0800
From: WangYuli <wangyuli@...ontech.com>
To: gregkh@...uxfoundation.org,
	sashal@...nel.org,
	stable@...r.kernel.org
Cc: rostedt@...dmis.org,
	mhiramat@...nel.org,
	mark.rutland@....com,
	tsbogend@...ha.franken.de,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org,
	linux-mips@...r.kernel.org,
	WangYuli <wangyuli@...ontech.com>,
	Philippe Mathieu-Daudé <philmd@...aro.org>
Subject: [PATCH 5.4~6.13] MIPS: ftrace: Declare ftrace_get_parent_ra_addr() as static

commit ddd068d81445b17ac0bed084dfeb9e58b4df3ddd upstream.

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@...ontech.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@...nel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@...aro.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Signed-off-by: WangYuli <wangyuli@...ontech.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;
-- 
2.47.2