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author | Paul Mundt <lethal@linux-sh.org> | 2009-06-15 00:00:42 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2009-06-15 00:00:42 +0900 |
commit | 3767f3f1ee11da55760616a2c68a09c02babdd9b (patch) | |
tree | 41f01349b06063bd9ba52c6bb852cb34797a9331 /arch/sh/include/asm | |
parent | 2b74b85693c7c0772e8787883230cd15314555f8 (diff) | |
download | lwn-3767f3f1ee11da55760616a2c68a09c02babdd9b.tar.gz lwn-3767f3f1ee11da55760616a2c68a09c02babdd9b.zip |
sh: Convert sh64 to use the generic checksum code.
This plugs in GENERIC_CSUM support on sh64, and kills off all of the old
references.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm')
-rw-r--r-- | arch/sh/include/asm/checksum.h | 2 | ||||
-rw-r--r-- | arch/sh/include/asm/checksum_64.h | 78 |
2 files changed, 1 insertions, 79 deletions
diff --git a/arch/sh/include/asm/checksum.h b/arch/sh/include/asm/checksum.h index 67496ab0ef04..fc26d1f4b590 100644 --- a/arch/sh/include/asm/checksum.h +++ b/arch/sh/include/asm/checksum.h @@ -1,5 +1,5 @@ #ifdef CONFIG_SUPERH32 # include "checksum_32.h" #else -# include "checksum_64.h" +# include <asm-generic/checksum.h> #endif diff --git a/arch/sh/include/asm/checksum_64.h b/arch/sh/include/asm/checksum_64.h deleted file mode 100644 index 9c62a031a8f5..000000000000 --- a/arch/sh/include/asm/checksum_64.h +++ /dev/null @@ -1,78 +0,0 @@ -#ifndef __ASM_SH_CHECKSUM_64_H -#define __ASM_SH_CHECKSUM_64_H - -/* - * include/asm-sh/checksum_64.h - * - * Copyright (C) 2000, 2001 Paolo Alberelli - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -/* - * computes the checksum of a memory block at buff, length len, - * and adds in "sum" (32-bit) - * - * returns a 32-bit number suitable for feeding into itself - * or csum_tcpudp_magic - * - * this function must be called with even lengths, except - * for the last fragment, which may be odd - * - * it's best to have buff aligned on a 32-bit boundary - */ -asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum); - -/* - * Note: when you get a NULL pointer exception here this means someone - * passed in an incorrect kernel address to one of these functions. - * - * If you use these functions directly please don't forget the - * access_ok(). - */ - - -__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len, - __wsum sum); - -__wsum csum_partial_copy_from_user(const void __user *src, void *dst, - int len, __wsum sum, int *err_ptr); - -static inline __sum16 csum_fold(__wsum csum) -{ - u32 sum = (__force u32)csum; - sum = (sum & 0xffff) + (sum >> 16); - sum = (sum & 0xffff) + (sum >> 16); - return (__force __sum16)~sum; -} - -__sum16 ip_fast_csum(const void *iph, unsigned int ihl); - -__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, unsigned short proto, - __wsum sum); - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) -{ - return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); -} - -/* - * this routine is used for miscellaneous IP-like checksums, mainly - * in icmp.c - */ -static inline __sum16 ip_compute_csum(const void *buff, int len) -{ - return csum_fold(csum_partial(buff, len, 0)); -} - -#endif /* __ASM_SH_CHECKSUM_64_H */ |