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| author | Felix Fietkau <nbd@nbd.name> | 2018-07-22 17:05:09 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2018-07-22 17:16:35 +0200 |
| commit | 7ad20678e5fbbd5dbce4663ed0d8f9bdb1ab30ab (patch) | |
| tree | 358e8f6c52ef8c274d57b2de491184602e3459be | |
| parent | c527d0ec189bc3493c15dee15fcfd635b8fa54ff (diff) | |
| download | upstream-7ad20678e5fbbd5dbce4663ed0d8f9bdb1ab30ab.tar.gz upstream-7ad20678e5fbbd5dbce4663ed0d8f9bdb1ab30ab.tar.bz2 upstream-7ad20678e5fbbd5dbce4663ed0d8f9bdb1ab30ab.zip | |
kernel: backport a change to 4.9 which disables overly aggressive warnings on gcc 8
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rw-r--r-- | target/linux/generic/backport-4.9/014-Kbuild-suppress-packed-not-aligned-warning-for-defau.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.9/014-Kbuild-suppress-packed-not-aligned-warning-for-defau.patch b/target/linux/generic/backport-4.9/014-Kbuild-suppress-packed-not-aligned-warning-for-defau.patch new file mode 100644 index 0000000000..a6e312a092 --- /dev/null +++ b/target/linux/generic/backport-4.9/014-Kbuild-suppress-packed-not-aligned-warning-for-defau.patch @@ -0,0 +1,45 @@ +From: Xiongfeng Wang <xiongfeng.wang@linaro.org> +Date: Thu, 11 Jan 2018 17:22:29 +0800 +Subject: [PATCH] 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> +--- + +--- 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) + |