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

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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>
This commit is contained in:
Behan Webster
2014-07-31 21:08:25 -07:00
committed by Michal Marek
parent bfaf2dd350
commit 26ea6bb1fe
2 changed files with 12 additions and 10 deletions
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Makefile
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@@ -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.