path: root/scripts
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authorLee Jones <lee.jones@linaro.org>2016-01-12 14:24:18 +0000
committerMichal Marek <mmarek@suse.com>2016-01-12 16:07:03 +0100
commit7599ea8b4e25fd8dea26cb64f100cf265d1e6bf3 (patch)
tree322eaed9049b683a24d2ae8192c1d6e59e227cb8 /scripts
parentMakefile: revert "Makefile: Document ability to make file.lst and file.S" partially (diff)
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 <arnd@arndb.de> Fixes: 26ea6bb1fef0 ("kbuild, LLVMLinux: Supress warnings unless W=1-3") Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Michal Marek <mmarek@suse.com>
Diffstat (limited to 'scripts')
1 files changed, 2 insertions, 0 deletions
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 4efedcbe4165..f9e47a70509c 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