diff options
| author | Lee Jones <lee.jones@linaro.org> | 2016-01-12 14:24:18 +0000 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.com> | 2016-01-12 16:07:03 +0100 |
| commit | 7599ea8b4e25fd8dea26cb64f100cf265d1e6bf3 (patch) | |
| tree | 322eaed9049b683a24d2ae8192c1d6e59e227cb8 /scripts/Makefile.extrawarn | |
| parent | 40ab87a4003c7952976ce901a2b9ece5ed833168 (diff) | |
| download | lwn-7599ea8b4e25fd8dea26cb64f100cf265d1e6bf3.tar.gz lwn-7599ea8b4e25fd8dea26cb64f100cf265d1e6bf3.zip | |
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/Makefile.extrawarn')
| -rw-r--r-- | scripts/Makefile.extrawarn | 2 |
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 |