4.4-stable review patch. If anyone has any objections, please let me know.
------------------
[ Upstream commit aa09545589ceeff884421d8eb38d04963190afbe ]
GCC 4.6.3 does not support -Wno-unused-const-variable. Instead, use the
kbuild infrastructure that checks if this options exists.
Fixes: 2cd55c68c0a4 ("cxl: Fix build failure due to -Wunused-variable behaviour change")
Suggested-by: Michal Marek <mmarek@xxxxxxxx>
Suggested-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Brian Norris <computersforpeace@xxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/misc/cxl/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/misc/cxl/Makefile
+++ b/drivers/misc/cxl/Makefile
@@ -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
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