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authorXiongfeng Wang <xiongfeng.wang@linaro.org>2018-01-11 17:22:29 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-12-08 13:05:04 +0100
commitdfb64b8c3d26b79b191eaeacd9e042becb1eca58 (patch)
treea510dd6835ea83bbfd5ad7ccf71a3df4c86c62b2 /scripts/Makefile.extrawarn
parentb136f0e9e9d79b8449d99ea701ade1e17a971826 (diff)
downloadlinux-rt-dfb64b8c3d26b79b191eaeacd9e042becb1eca58.tar.gz
Kbuild: suppress packed-not-aligned warning for default setting only
commit 321cb0308a9e76841394b4bbab6a1107cfedbae0 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 fb3522fd8702..d08b6fbdfa85 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -10,6 +10,8 @@
# 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
@@ -25,6 +27,7 @@ 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)