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 <peterz@xxxxxxxxxxxxx> Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx> --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 9ef547fc7ffe..191f3ce3cb5e 100644 --- a/Makefile +++ b/Makefile @@ -667,7 +667,7 @@ KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow) KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context) ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE -KBUILD_CFLAGS += $(call cc-option,-Oz,-Os) +KBUILD_CFLAGS += -Os else KBUILD_CFLAGS += -O2 endif -- 2.21.0.225.g810b269d1ac-goog