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Groups > linux.kernel > #1230282
| From | Christophe Leroy <christophe.leroy@c-s.fr> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3/9] powerpc32: checksum_wrappers_64 becomes checksum_wrappers |
| Date | 2015-09-22 16:40 +0200 |
| Message-ID | <qbwTF-86z-45@gated-at.bofh.it> (permalink) |
| References | <qbwTD-86z-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The powerpc64 checksum wrapper functions adds csum_and_copy_to_user()
which otherwise is implemented in include/net/checksum.h by using
csum_partial() then copy_to_user()
Those two wrapper fonctions are also applicable to powerpc32 as it is
based on the use of csum_partial_copy_generic() which also
exists on powerpc32
This patch renames arch/powerpc/lib/checksum_wrappers_64.c to
arch/powerpc/lib/checksum_wrappers.c and
makes it non-conditional to CONFIG_WORD_SIZE
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
arch/powerpc/include/asm/checksum.h | 9 ---------
arch/powerpc/lib/Makefile | 3 +--
arch/powerpc/lib/{checksum_wrappers_64.c => checksum_wrappers.c} | 0
3 files changed, 1 insertion(+), 11 deletions(-)
rename arch/powerpc/lib/{checksum_wrappers_64.c => checksum_wrappers.c} (100%)
diff --git a/arch/powerpc/include/asm/checksum.h b/arch/powerpc/include/asm/checksum.h
index d2ca07b..afa6722 100644
--- a/arch/powerpc/include/asm/checksum.h
+++ b/arch/powerpc/include/asm/checksum.h
@@ -47,21 +47,12 @@ extern __wsum csum_partial_copy_generic(const void *src, void *dst,
int len, __wsum sum,
int *src_err, int *dst_err);
-#ifdef __powerpc64__
#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
extern __wsum csum_and_copy_from_user(const void __user *src, void *dst,
int len, __wsum sum, int *err_ptr);
#define HAVE_CSUM_COPY_USER
extern __wsum csum_and_copy_to_user(const void *src, void __user *dst,
int len, __wsum sum, int *err_ptr);
-#else
-/*
- * the same as csum_partial, but copies from src to dst while it
- * checksums.
- */
-#define csum_partial_copy_from_user(src, dst, len, sum, errp) \
- csum_partial_copy_generic((__force const void *)(src), (dst), (len), (sum), (errp), NULL)
-#endif
#define csum_partial_copy_nocheck(src, dst, len, sum) \
csum_partial_copy_generic((src), (dst), (len), (sum), NULL, NULL)
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index a47e142..e46b068 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -22,8 +22,7 @@ obj64-$(CONFIG_SMP) += locks.o
obj64-$(CONFIG_ALTIVEC) += vmx-helper.o
ifeq ($(CONFIG_GENERIC_CSUM),)
-obj-y += checksum_$(CONFIG_WORD_SIZE).o
-obj-$(CONFIG_PPC64) += checksum_wrappers_64.o
+obj-y += checksum_$(CONFIG_WORD_SIZE).o checksum_wrappers.o
endif
obj-$(CONFIG_PPC_EMULATE_SSTEP) += sstep.o ldstfp.o
diff --git a/arch/powerpc/lib/checksum_wrappers_64.c b/arch/powerpc/lib/checksum_wrappers.c
similarity index 100%
rename from arch/powerpc/lib/checksum_wrappers_64.c
rename to arch/powerpc/lib/checksum_wrappers.c
--
2.1.0
--
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[PATCH 0/9] powerpc32: set of optimisation of network checksum functions Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 16:40 +0200 [PATCH 7/9] powerpc32: optimise csum_partial() loop Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 16:40 +0200 [PATCH 1/9] powerpc: unexport csum_tcpudp_magic Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 16:40 +0200 [PATCH 6/9] powerpc32: optimise a few instructions in csum_partial() Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 16:40 +0200 [PATCH 9/9] powerpc: optimise csum_partial() call when len is constant Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 16:40 +0200 [PATCH 3/9] powerpc32: checksum_wrappers_64 becomes checksum_wrappers Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 16:40 +0200 [PATCH 5/9] powerpc32: rewrite csum_partial_copy_generic() based on copy_tofrom_user() Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 16:40 +0200 [PATCH 8/9] powerpc: simplify csum_add(a, b) in case a or b is constant 0 Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 16:40 +0200 Re: [PATCH 0/9] powerpc32: set of optimisation of network checksum functions David Miller <davem@davemloft.net> - 2015-09-24 00:40 +0200
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