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46 lines
1.6 KiB
46 lines
1.6 KiB
6 years ago
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From: Xiongfeng Wang <xiongfeng.wang@linaro.org>
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Date: Thu, 11 Jan 2018 17:22:29 +0800
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Subject: [PATCH] Kbuild: suppress packed-not-aligned warning for default
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setting only
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gcc-8 reports many -Wpacked-not-aligned warnings. The below are some
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examples.
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./include/linux/ceph/msgr.h:67:1: warning: alignment 1 of 'struct
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ceph_entity_addr' is less than 8 [-Wpacked-not-aligned]
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} __attribute__ ((packed));
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./include/linux/ceph/msgr.h:67:1: warning: alignment 1 of 'struct
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ceph_entity_addr' is less than 8 [-Wpacked-not-aligned]
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} __attribute__ ((packed));
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./include/linux/ceph/msgr.h:67:1: warning: alignment 1 of 'struct
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ceph_entity_addr' is less than 8 [-Wpacked-not-aligned]
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} __attribute__ ((packed));
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This patch suppresses this kind of warnings for default setting.
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Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>
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Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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---
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--- a/scripts/Makefile.extrawarn
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+++ b/scripts/Makefile.extrawarn
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@@ -10,6 +10,8 @@
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# are not supported by all versions of the compiler
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# ==========================================================================
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+KBUILD_CFLAGS += $(call cc-disable-warning, packed-not-aligned)
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+
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ifeq ("$(origin W)", "command line")
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export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
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endif
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@@ -25,6 +27,7 @@ warning-1 += -Wold-style-definition
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warning-1 += $(call cc-option, -Wmissing-include-dirs)
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warning-1 += $(call cc-option, -Wunused-but-set-variable)
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warning-1 += $(call cc-option, -Wunused-const-variable)
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+warning-1 += $(call cc-option, -Wpacked-not-aligned)
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warning-1 += $(call cc-disable-warning, missing-field-initializers)
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warning-1 += $(call cc-disable-warning, sign-compare)
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