From: Lee Jones Date: Tue, 12 Jan 2016 14:24:18 +0000 (+0000) Subject: kbuild: Demote 'sign-compare' warning to W=2 X-Git-Tag: v4.14-rc1~3973^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7599ea8b4e25fd8dea26cb64f100cf265d1e6bf3;p=platform%2Fkernel%2Flinux-rpi.git kbuild: Demote 'sign-compare' warning to W=2 Ideally, a kernel compile with W=1 enabled should complete cleanly; however, when we run one currently we are presented with ~25k warnings. 'sign-compare' accounts for ~22k of those ~25k. In this patch we're demoting 'sign-compare' warnings to W=2, with a view to fixing the remaining 3k W=1 warnings required for a clean build. Arnd adds: "As per our discussion, I'd add that this was inadvertedly introduced by Behan when he moved the clang specific warnings into an ifdef block and did not notice that -Wsign-compare was interpreted by both gcc and clang. Earlier, it was introduced in just the same way by Jan-Simon as part of 3d3d6b847420 ("kbuild: LLVMLinux: Adapt warnings for compilation with clang")." Acked-by: Arnd Bergmann Fixes: 26ea6bb1fef0 ("kbuild, LLVMLinux: Supress warnings unless W=1-3") Signed-off-by: Lee Jones Signed-off-by: Michal Marek --- diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn index 4efedcbe..f9e47a7 100644 --- a/scripts/Makefile.extrawarn +++ b/scripts/Makefile.extrawarn @@ -25,6 +25,7 @@ warning-1 += -Wold-style-definition warning-1 += $(call cc-option, -Wmissing-include-dirs) warning-1 += $(call cc-option, -Wunused-but-set-variable) warning-1 += $(call cc-disable-warning, missing-field-initializers) +warning-1 += $(call cc-disable-warning, sign-compare) warning-2 := -Waggregate-return warning-2 += -Wcast-align @@ -33,6 +34,7 @@ warning-2 += -Wnested-externs warning-2 += -Wshadow warning-2 += $(call cc-option, -Wlogical-op) warning-2 += $(call cc-option, -Wmissing-field-initializers) +warning-2 += $(call cc-option, -Wsign-compare) warning-3 := -Wbad-function-cast warning-3 += -Wcast-qual