From: Behan Webster <behanw@converseincode.com>
Date: Fri, 1 Aug 2014 04:08:25 +0000 (-0700)
Subject: kbuild, LLVMLinux: Supress warnings unless W=1-3
X-Git-Tag: cleanup-for-v3.18~20^2~1
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26ea6bb1fef06c686be771903ecab0518af5c2de;p=pandora-kernel.git

kbuild, LLVMLinux: Supress warnings unless W=1-3

clang has more warnings enabled by default. Turn them off unless W is
set. This patch fixes a logic bug where warnings in clang were disabled
when W was set.

Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Cc: bp@alien8.de
Signed-off-by: Michal Marek <mmarek@suse.cz>
---

diff --git a/Makefile b/Makefile
index 2fd21a58f5cf..4aef4f861238 100644
--- a/Makefile
+++ b/Makefile
@@ -663,6 +663,7 @@ KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
 # See modpost pattern 2
 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
+KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 else
 
 # This warning generated too much noise in a regular build.
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