* [PATCH 01/22] kbuild: disable -Wformat-truncation warnings by default
[not found] <20170714120720.906842-1-arnd@arndb.de>
@ 2017-07-14 12:06 ` Arnd Bergmann
0 siblings, 0 replies; only message in thread
From: Arnd Bergmann @ 2017-07-14 12:06 UTC (permalink / raw)
To: linux-kernel, Masahiro Yamada, Michal Marek
Cc: Greg Kroah-Hartman, Linus Torvalds, Guenter Roeck, akpm, netdev,
David S . Miller, James E . J . Bottomley, Martin K . Petersen,
linux-scsi, x86, Arnd Bergmann, linux-kbuild
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@arndb.de>
---
| 3 +++
1 file changed, 3 insertions(+)
--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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2017-07-14 12:06 ` [PATCH 01/22] kbuild: disable -Wformat-truncation warnings by default Arnd Bergmann
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