Thread (13 messages) flat view 13 messages, 4 authors, 2016-07-04
STALE3684d

[PATCH 5/6] powerpc/sparse: Pass endianness to sparse

From: Daniel Axtens <hidden>
Date: 2016-07-04 07:10:03
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Linus Torvalds

Explicitly give sparse an endianness in the Makefile, so that it
doesn't get confused.

Normally we have #ifdef one and #else the other, so it doesn't usually
matter, but we have been bitten by it before, and indeed this patch
fixes a number of sparse errors.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Daniel Axtens <redacted>
---
 arch/powerpc/Makefile | 5 +++++
 1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 709a22a3e824..8617c71c3bdb 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -181,6 +181,11 @@ KBUILD_CFLAGS	+= -pipe -Iarch/$(ARCH) $(CFLAGS-y)
 CPP		= $(CC) -E $(KBUILD_CFLAGS)
 
 CHECKFLAGS	+= -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__
+ifdef CONFIG_CPU_BIG_ENDIAN
+CHECKFLAGS	+= -D__BIG_ENDIAN__
+else
+CHECKFLAGS	+= -D__LITTLE_ENDIAN__
+endif
 
 KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
 
-- 
2.1.4
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