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authorArnd Bergmann <arnd@arndb.de>2018-02-02 17:56:19 +0300
committerIngo Molnar <mingo@kernel.org>2018-02-13 16:33:35 +0300
commit01684e72f16727e6ae0aeb1392f478e11ec5b8f7 (patch)
tree4bb22328882e248856bda2ddc892f20215427b5b /arch
parentc25d99d20ba69824a1e2cc118e04b877cd427afc (diff)
downloadlinux-01684e72f16727e6ae0aeb1392f478e11ec5b8f7.tar.xz
x86/error_inject: Make just_return_func() globally visible
With link time optimizations enabled, I get a link failure: ./ccLbOEHX.ltrans19.ltrans.o: In function `override_function_with_return': <artificial>:(.text+0x7f3): undefined reference to `just_return_func' Marking the symbol .globl makes it work as expected. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Josef Bacik <jbacik@fb.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Nicolas Pitre <nico@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Fixes: 540adea3809f ("error-injection: Separate error-injection from kprobe") Link: http://lkml.kernel.org/r/20180202145634.200291-3-arnd@arndb.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/lib/error-inject.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/lib/error-inject.c b/arch/x86/lib/error-inject.c
index 7b881d03d0dd..3cdf06128d13 100644
--- a/arch/x86/lib/error-inject.c
+++ b/arch/x86/lib/error-inject.c
@@ -7,6 +7,7 @@ asmlinkage void just_return_func(void);
asm(
".type just_return_func, @function\n"
+ ".globl just_return_func\n"
"just_return_func:\n"
" ret\n"
".size just_return_func, .-just_return_func\n"