commit a75bb4eb9e565b9f5115e2e8c07377ce32cbe69a upstream. The clang option -Oz enables *aggressive* optimization for size, which doesn't necessarily result in smaller images, but can have negative impact on performance. Switch back to the less aggressive -Os.
This reverts commit 6748cb3c299de1ffbe56733647b01dbcc398c419. Suggested-by: Peter Zijlstra <[email protected]> Signed-off-by: Matthias Kaehlcke <[email protected]> Reviewed-by: Nick Desaulniers <[email protected]> Signed-off-by: Masahiro Yamada <[email protected]> Signed-off-by: Nathan Chancellor <[email protected]> Signed-off-by: Sasha Levin <[email protected]> --- Makefile | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/Makefile b/Makefile index 966069dab768..994e52be8685 100644 --- a/Makefile +++ b/Makefile @@ -655,8 +655,7 @@ KBUILD_CFLAGS += $(call cc-option,-fdata-sections,) endif ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE -KBUILD_CFLAGS += $(call cc-option,-Oz,-Os) -KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,) +KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) else ifdef CONFIG_PROFILE_ALL_BRANCHES KBUILD_CFLAGS += -O2 $(call cc-disable-warning,maybe-uninitialized,) -- 2.19.1
