We need to fix some endian issues in our checksum code. For now
just enable the generic checksum routines for little endian builds.
Signed-off-by: Anton Blanchard <an...@samba.org>
---
arch/powerpc/Kconfig | 3 +++
arch/powerpc/include/asm/checksum.h | 5 +++++
arch/powerpc/kernel/ppc_ksyms.c | 2 ++
arch/powerpc/lib/Makefile | 9 +++++++--
4 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 3bf72cd..818974d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -140,6 +140,9 @@ config PPC
select OLD_SIGACTION if PPC32
select HAVE_DEBUG_STACKOVERFLOW
+config GENERIC_CSUM
+ def_bool CPU_LITTLE_ENDIAN
+
config EARLY_PRINTK
bool
default y
diff --git a/arch/powerpc/include/asm/checksum.h
b/arch/powerpc/include/asm/checksum.h
index ce0c284..a8de989 100644
--- a/arch/powerpc/include/asm/checksum.h
+++ b/arch/powerpc/include/asm/checksum.h
@@ -14,6 +14,7 @@
* which always checksum on 4 octet boundaries. ihl is the number
* of 32-bit words and is always >= 5.
*/
+#ifndef CONFIG_GENERIC_CSUM
extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
/*
@@ -123,5 +124,9 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr,
__be32 daddr,
return sum;
#endif
}
+
+#else
+#include <asm-generic/checksum.h>
+#endif
#endif /* __KERNEL__ */
#endif
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index c296665..0c2dd60 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -79,10 +79,12 @@ EXPORT_SYMBOL(strlen);
EXPORT_SYMBOL(strcmp);
EXPORT_SYMBOL(strncmp);
+#ifndef CONFIG_GENERIC_CSUM
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_generic);
EXPORT_SYMBOL(ip_fast_csum);
EXPORT_SYMBOL(csum_tcpudp_magic);
+#endif
EXPORT_SYMBOL(__copy_tofrom_user);
EXPORT_SYMBOL(__clear_user);
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 4504332..33ab261 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -10,15 +10,20 @@ CFLAGS_REMOVE_code-patching.o = -pg
CFLAGS_REMOVE_feature-fixups.o = -pg
obj-y := string.o alloc.o \
- checksum_$(CONFIG_WORD_SIZE).o crtsavres.o
+ crtsavres.o
obj-$(CONFIG_PPC32) += div64.o copy_32.o
obj-$(CONFIG_HAS_IOMEM) += devres.o
obj-$(CONFIG_PPC64) += copypage_64.o copyuser_64.o \
memcpy_64.o usercopy_64.o mem_64.o string.o \
- checksum_wrappers_64.o hweight_64.o \
+ hweight_64.o \
copyuser_power7.o string_64.o copypage_power7.o \
memcpy_power7.o
+ifeq ($(CONFIG_GENERIC_CSUM),)
+obj-y += checksum_$(CONFIG_WORD_SIZE).o
+obj-$(CONFIG_PPC64) += checksum_wrappers_64.o
+endif
+
obj-$(CONFIG_PPC_EMULATE_SSTEP) += sstep.o ldstfp.o
ifeq ($(CONFIG_PPC64),y)
--
1.8.1.2
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