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cxl: fix build for GCC 4.6.x

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GCC 4.6.3 does not support -Wno-unused-const-variable. Instead, use the
kbuild infrastructure that checks if this options exists.

Fixes: 2cd55c68c0 ("cxl: Fix build failure due to -Wunused-variable behaviour change")
Suggested-by: Michal Marek <mmarek@suse.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Brian Norris 2016-01-08 10:30:09 -08:00 committed by Michael Ellerman
parent e708c24cd0
commit aa09545589
1 changed files with 1 additions and 1 deletions
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2
drivers/misc/cxl/Makefile
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@ -1,4 +1,4 @@
ccflags-y := -Werror -Wno-unused-const-variable
ccflags-y := -Werror $(call cc-disable-warning, unused-const-variable)
cxl-y += main.o file.o irq.o fault.o native.o
cxl-y += context.o sysfs.o debugfs.o pci.o trace.o