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authorXiongfeng Wang <xiongfeng.wang@linaro.org>2018-01-11 17:22:29 +0800
committerMasahiro Yamada <yamada.masahiro@socionext.com>2018-01-18 09:37:53 +0900
commit321cb0308a9e76841394b4bbab6a1107cfedbae0 (patch)
treeca37de053cca54c08556d9a029fc17f0d956e1ba /scripts/Makefile.extrawarn
parentab9ce9feed362f3f51e239f9421b220aaf9211aa (diff)
downloadlinux-321cb0308a9e76841394b4bbab6a1107cfedbae0.tar.bz2
Kbuild: suppress packed-not-aligned warning for default setting only
gcc-8 reports many -Wpacked-not-aligned warnings. The below are some examples. ./include/linux/ceph/msgr.h:67:1: warning: alignment 1 of 'struct ceph_entity_addr' is less than 8 [-Wpacked-not-aligned] } __attribute__ ((packed)); ./include/linux/ceph/msgr.h:67:1: warning: alignment 1 of 'struct ceph_entity_addr' is less than 8 [-Wpacked-not-aligned] } __attribute__ ((packed)); ./include/linux/ceph/msgr.h:67:1: warning: alignment 1 of 'struct ceph_entity_addr' is less than 8 [-Wpacked-not-aligned] } __attribute__ ((packed)); This patch suppresses this kind of warnings for default setting. Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'scripts/Makefile.extrawarn')
-rw-r--r--scripts/Makefile.extrawarn3
1 files changed, 3 insertions, 0 deletions
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index c6ebf4239e64..8d5357053f86 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -11,6 +11,8 @@
# are not supported by all versions of the compiler
# ==========================================================================
+KBUILD_CFLAGS += $(call cc-disable-warning, packed-not-aligned)
+
ifeq ("$(origin W)", "command line")
export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
endif
@@ -26,6 +28,7 @@ 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-option, -Wunused-const-variable)
+warning-1 += $(call cc-option, -Wpacked-not-aligned)
warning-1 += $(call cc-disable-warning, missing-field-initializers)
warning-1 += $(call cc-disable-warning, sign-compare)