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Date: Fri, 14 Jul 2017 14:06:53 +0200 From: Arnd Bergmann <arnd@...db.de> To: linux-kernel@...r.kernel.org, Masahiro Yamada <yamada.masahiro@...ionext.com>, Michal Marek <mmarek@...e.com> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Guenter Roeck <linux@...ck-us.net>, akpm@...ux-foundation.org, netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>, "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>, "Martin K . Petersen" <martin.petersen@...cle.com>, linux-scsi@...r.kernel.org, x86@...nel.org, Arnd Bergmann <arnd@...db.de>, linux-kbuild@...r.kernel.org Subject: [PATCH 01/22] kbuild: disable -Wformat-truncation warnings by default With x86 allmodconfig, we currently get 233 -Wformat-truncation warnings, which makes the entire warnings rather useless. This turns off the warning by default, unless we specify W=1 or higher Signed-off-by: Arnd Bergmann <arnd@...db.de> --- scripts/Makefile.extrawarn | 3 +++ 1 file changed, 3 insertions(+) diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn index fb3522fd8702..4b63c2f71adb 100644 --- a/scripts/Makefile.extrawarn +++ b/scripts/Makefile.extrawarn @@ -67,5 +67,8 @@ KBUILD_CFLAGS += $(call cc-disable-warning, format) KBUILD_CFLAGS += $(call cc-disable-warning, sign-compare) KBUILD_CFLAGS += $(call cc-disable-warning, format-zero-length) KBUILD_CFLAGS += $(call cc-disable-warning, uninitialized) +else +# noisy gcc-7 warnings +KBUILD_CFLAGS += $(call cc-option,-Wformat-truncation=0) endif endif -- 2.9.0
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