arm64: do not trace atomic operations

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 <panand@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/arch/arm64/include/asm/lse.h b/arch/arm64/include/asm/lse.h
index fc756e22c84cd718278d4f0ba8ebc6a32ff4739e..606b20910a5c2a41a7ae425a10852a3bb75f87f1 100644 (file)
--- 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))