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.
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| @@ -11,6 +11,8 @@ · 10 unmodified lines | ||
| 11 | 11 | # are not supported by all versions of the compiler |
| 12 | 12 | # ========================================================================== |
| 13 | 13 | |
| 14 | +KBUILD_CFLAGS += $(call cc-disable-warning, packed-not-aligned) | |
| 15 | + | |
| 14 | 16 | ifeq ("$(origin W)", "command line") |
| 15 | 17 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) |
| 16 | 18 | endif |
| @@ -26,6 +28,7 @@ warning-1 += -Wold-style-definition · 9 unmodified lines | ||
| 26 | 28 | warning-1 += $(call cc-option, -Wmissing-include-dirs) |
| 27 | 29 | warning-1 += $(call cc-option, -Wunused-but-set-variable) |
| 28 | 30 | warning-1 += $(call cc-option, -Wunused-const-variable) |
| 31 | +warning-1 += $(call cc-option, -Wpacked-not-aligned) | |
| 29 | 32 | warning-1 += $(call cc-disable-warning, missing-field-initializers) |
| 30 | 33 | warning-1 += $(call cc-disable-warning, sign-compare) |
| 31 | 34 | |