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Kbuild: enable -Wunused-macros warning for "make W=2" 

We have lots of dead defines and macros in drivers, lets offer users a way
to detect and eventually remove them.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Johannes Thumshirn 2017-08-30 16:04:13 +02:00 committed by Masahiro Yamada
parent 8e9b466799
commit de8cf95047
1 changed files with 1 additions and 0 deletions
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scripts/Makefile.extrawarn
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@ -37,6 +37,7 @@ warning-2 += $(call cc-option, -Wlogical-op)
warning-2 += $(call cc-option, -Wmissing-field-initializers)
warning-2 += $(call cc-option, -Wsign-compare)
warning-2 += $(call cc-option, -Wmaybe-uninitialized)
warning-2 += $(call cc-option, -Wunused-macros)
warning-3 := -Wbad-function-cast
warning-3 += -Wcast-qual