From 13f2ed4724423ea01b65de35fc023ec68b1ee5a0 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 12 Jul 2017 19:25:47 -0700 Subject: disable new gcc-7.1.1 warnings for now I made the mistake of upgrading my desktop to the new Fedora 26 that comes with gcc-7.1.1. There's nothing wrong per se that I've noticed, but I now have 1500 lines of warnings, mostly from the new format-truncation warning triggering all over the tree. We use 'snprintf()' and friends in a lot of places, and often know that the numbers are fairly small (ie a controller index or similar), but gcc doesn't know that, and sees an 'int', and thinks that it could be some huge number. And then complains when our buffers are not able to fit the name for the ten millionth controller. These warnings aren't necessarily bad per se, and we probably want to look through them subsystem by subsystem, but at least during the merge window they just mean that I can't even see if somebody is introducing any *real* problems when I pull. So warnings disabled for now. Signed-off-by: Linus Torvalds [sw0312.kim: backport from mainline to fix gcc-7 build warnings] Signed-off-by: Seung-Woo Kim Change-Id: Ic7c286d72d03dbed393efa48142a571d82045d87 --- Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Makefile b/Makefile index d036222c7f64..32bd12e52663 100644 --- a/Makefile +++ b/Makefile @@ -610,6 +610,9 @@ all: vmlinux include arch/$(SRCARCH)/Makefile KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) +KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation) +KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow) +KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context) KBUILD_CFLAGS += $(call cc-option,-fno-PIE) KBUILD_AFLAGS += $(call cc-option,-fno-PIE) -- cgit v1.2.3