Annotate memory barriers *mb() with calls to kcsan_mb(), signaling to
compilers supporting KCSAN that the respective memory barrier has been
issued. Rename memory barrier *mb() to __*mb() to opt in for
asm-generic/barrier.h to generate the respective *mb() macro.
Signed-off-by: Rohan McLure <rmcl...@linux.ibm.com>
---
arch/powerpc/include/asm/barrier.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/barrier.h
b/arch/powerpc/include/asm/barrier.h
index e80b2c0e9315..f51f4be5fa4e 100644
--- a/arch/powerpc/include/asm/barrier.h
+++ b/arch/powerpc/include/asm/barrier.h
@@ -35,9 +35,9 @@
* However, on CPUs that don't support lwsync, lwsync actually maps to a
* heavy-weight sync, so smp_wmb() can be a lighter-weight eieio.
*/
-#define mb() __asm__ __volatile__ ("sync" : : : "memory")
-#define rmb() __asm__ __volatile__ ("sync" : : : "memory")
-#define wmb() __asm__ __volatile__ ("sync" : : : "memory")
+#define __mb() __asm__ __volatile__ ("sync" : : : "memory")
+#define __rmb() __asm__ __volatile__ ("sync" : : : "memory")
+#define __wmb() __asm__ __volatile__ ("sync" : : : "memory")
/* The sub-arch has lwsync */
#if defined(CONFIG_PPC64) || defined(CONFIG_PPC_E500MC)
@@ -51,8 +51,8 @@
/* clang defines this macro for a builtin, which will not work with runtime
patching */
#undef __lwsync
#define __lwsync() __asm__ __volatile__ (stringify_in_c(LWSYNC) : :
:"memory")
-#define dma_rmb() __lwsync()
-#define dma_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : :
:"memory")
+#define __dma_rmb() __lwsync()
+#define __dma_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : :
:"memory")
#define __smp_lwsync() __lwsync()
--
2.37.2
