[PATCH RFC v3 6/8] kcov: add __always_inline for canonicalize_ip

[Chen Linxuan via B4 Relay <devnull+chenlinxuan.uniontech.com@xxxxxxxxxx>]

From: Chen Linxuan <chenlinxuan@xxxxxxxxxxxxx>

Presume that kernel is compiled for x86_64 with gcc version 13.3.0:

  make allmodconfig
  make KCFLAGS="-fno-inline-small-functions -fno-inline-functions-called-once"

This results a objtool warning:

  vmlinux.o: warning: objtool: __sanitizer_cov_trace_pc+0xc: call to canonicalize_ip() with UACCESS enabled

Signed-off-by: Chen Linxuan <chenlinxuan@xxxxxxxxxxxxx>
---
 kernel/kcov.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kcov.c b/kernel/kcov.c
index 187ba1b80bda169d2f7efead5c6076b8829522ca..a2e2d3c655406b5a1f53e4855c782727b0541935 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -194,7 +194,7 @@ static notrace bool check_kcov_mode(enum kcov_mode needed_mode, struct task_stru
 	return mode == needed_mode;
 }
 
-static notrace unsigned long canonicalize_ip(unsigned long ip)
+static __always_inline notrace unsigned long canonicalize_ip(unsigned long ip)
 {
 #ifdef CONFIG_RANDOMIZE_BASE
 	ip -= kaslr_offset();

-- 
2.43.0