[PATCH] arm64: do not trace atomic operations
From: Pratyush Anand <hidden>
Date: 2017-02-06 14:16:22
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Atomic operation function symbols are exported,when CONFIG_ARM64_LSE_ATOMICS is defined. Prefix them with notrace, so that an user can not trace these functions. Tracing these functions causes kernel crash. Signed-off-by: Pratyush Anand <redacted> --- arch/arm64/include/asm/lse.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/lse.h b/arch/arm64/include/asm/lse.h
index fc756e22c84c..606b20910a5c 100644
--- a/arch/arm64/include/asm/lse.h
+++ b/arch/arm64/include/asm/lse.h@@ -19,7 +19,7 @@ __asm__(".arch_extension lse"); /* Move the ll/sc atomics out-of-line */ -#define __LL_SC_INLINE +#define __LL_SC_INLINE notrace #define __LL_SC_PREFIX(x) __ll_sc_##x #define __LL_SC_EXPORT(x) EXPORT_SYMBOL(__LL_SC_PREFIX(x))
--
2.9.3