cxl: Compile with -Werror

This change “cxl: Compile with -Werror” in Linux kernel is authored by Daniel Axtens <dja [at]> on Fri Aug 7 13:18:17 2015 +1000.

cxl: Compile with -Werror

It's a good idea, and it brings us in line with the rest of arch/powerpc.

Signed-off-by: Daniel Axtens <>
Acked-by: Michael Neuling <>
Signed-off-by: Michael Ellerman <>

This Linux change may have been applied to various maintained Linux releases and you can find Linux releases including commit d3d73f4.

There are 2 lines of Linux source code added/deleted in this change. Code changes to Linux kernel are as follows.

 drivers/misc/cxl/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/misc/cxl/Makefile b/drivers/misc/cxl/Makefile
index 14e3f82..6f484df 100644
--- a/drivers/misc/cxl/Makefile
+++ b/drivers/misc/cxl/Makefile
@@ -1,3 +1,5 @@
+ccflags-y := -Werror
 cxl-y				+= main.o file.o irq.o fault.o native.o
 cxl-y				+= context.o sysfs.o debugfs.o pci.o trace.o
 cxl-y				+= vphb.o api.o

The commit for this change in Linux stable tree is d3d73f4 (patch).

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