[PATCH 04/13] powerpc: Disable CONFIG_DCACHE_WORD_ACCESS when KMSAN is enabled

[Nicholas Miehlbradt]

Word sized accesses may read uninitialized data when optimizing loads.
Disable this optimization when KMSAN is enabled to prevent false
positives.

Signed-off-by: Nicholas Miehlbradt <nicholas at linux.ibm.com>
---
 arch/powerpc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 6f105ee4f3cf..e33e3250c478 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -182,7 +182,7 @@ config PPC
 	select BUILDTIME_TABLE_SORT
 	select CLONE_BACKWARDS
 	select CPUMASK_OFFSTACK			if NR_CPUS >= 8192
-	select DCACHE_WORD_ACCESS		if PPC64 && CPU_LITTLE_ENDIAN
+	select DCACHE_WORD_ACCESS		if PPC64 && CPU_LITTLE_ENDIAN && !KMSAN
 	select DMA_OPS_BYPASS			if PPC64
 	select DMA_OPS				if PPC64
 	select DYNAMIC_FTRACE			if FUNCTION_TRACER
-- 
2.40.1