From 94ede2a3e9135764736221c080ac7c0ad993dc2d Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 29 Jul 2024 16:34:17 -0700
Subject: [PATCH] profiling: remove stale percpu flip buffer variables
For some reason I didn't see this issue on my arm64 or x86-64 builds,
but Stephen Rothwell reports that commit 2accfdb7eff6 ("profiling:
attempt to remove per-cpu profile flip buffer") left these static
variables around, and the powerpc build is unhappy about them:
kernel/profile.c:52:28: warning: 'cpu_profile_flip' defined but not used [-Wunused-variable]
52 | static DEFINE_PER_CPU(int, cpu_profile_flip);
| ^~~~~~~~~~~~~~~~
..
So remove these stale left-over remnants too.
Fixes: 2accfdb7eff6 ("profiling: attempt to remove per-cpu profile flip buffer")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
kernel/profile.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/kernel/profile.c b/kernel/profile.c
index 2dfb0f4e755c5..ff68d3816182a 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -47,12 +47,6 @@ static unsigned short int prof_shift;
int prof_on __read_mostly;
EXPORT_SYMBOL_GPL(prof_on);
-#if defined(CONFIG_SMP) && defined(CONFIG_PROC_FS)
-static DEFINE_PER_CPU(struct profile_hit *[2], cpu_profile_hits);
-static DEFINE_PER_CPU(int, cpu_profile_flip);
-static DEFINE_MUTEX(profile_flip_mutex);
-#endif /* CONFIG_SMP */
-
int profile_setup(char *str)
{
static const char schedstr[] = "schedule";
--
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