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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.

Xiongfeng Wang committed 8 years ago

Commit 321cb031 parent ab9ce9f1 file · +3 −0Browse files

Showing the changes to scripts (1 of 1 file). Show all

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scripts/Makefile.extrawarn+3−0
@@ -11,6 +11,8 @@ · 10 unmodified lines
11# are not supported by all versions of the compiler11# are not supported by all versions of the compiler
12# ==========================================================================12# ==========================================================================
13 13
14KBUILD_CFLAGS += $(call cc-disable-warning, packed-not-aligned)
15
14ifeq ("$(origin W)", "command line")16ifeq ("$(origin W)", "command line")
15 export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)17 export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
16endif18endif
@@ -26,6 +28,7 @@ warning-1 += -Wold-style-definition · 9 unmodified lines
26warning-1 += $(call cc-option, -Wmissing-include-dirs)28warning-1 += $(call cc-option, -Wmissing-include-dirs)
27warning-1 += $(call cc-option, -Wunused-but-set-variable)29warning-1 += $(call cc-option, -Wunused-but-set-variable)
28warning-1 += $(call cc-option, -Wunused-const-variable)30warning-1 += $(call cc-option, -Wunused-const-variable)
31warning-1 += $(call cc-option, -Wpacked-not-aligned)
29warning-1 += $(call cc-disable-warning, missing-field-initializers)32warning-1 += $(call cc-disable-warning, missing-field-initializers)
30warning-1 += $(call cc-disable-warning, sign-compare)33warning-1 += $(call cc-disable-warning, sign-compare)
31 34