diff options
Diffstat (limited to 'include/asm-cris/arch-v10/checksum.h')
-rw-r--r-- | include/asm-cris/arch-v10/checksum.h | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/include/asm-cris/arch-v10/checksum.h b/include/asm-cris/arch-v10/checksum.h deleted file mode 100644 index b8000c5d7fe1..000000000000 --- a/include/asm-cris/arch-v10/checksum.h +++ /dev/null | |||
@@ -1,29 +0,0 @@ | |||
1 | #ifndef _CRIS_ARCH_CHECKSUM_H | ||
2 | #define _CRIS_ARCH_CHECKSUM_H | ||
3 | |||
4 | /* Checksum some values used in TCP/UDP headers. | ||
5 | * | ||
6 | * The gain by doing this in asm is that C will not generate carry-additions | ||
7 | * for the 32-bit components of the checksum, so otherwise we would have had | ||
8 | * to split all of those into 16-bit components, then add. | ||
9 | */ | ||
10 | |||
11 | static inline __wsum | ||
12 | csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, | ||
13 | unsigned short proto, __wsum sum) | ||
14 | { | ||
15 | __wsum res; | ||
16 | __asm__ ("add.d %2, %0\n\t" | ||
17 | "ax\n\t" | ||
18 | "add.d %3, %0\n\t" | ||
19 | "ax\n\t" | ||
20 | "add.d %4, %0\n\t" | ||
21 | "ax\n\t" | ||
22 | "addq 0, %0\n" | ||
23 | : "=r" (res) | ||
24 | : "0" (sum), "r" (daddr), "r" (saddr), "r" ((len + proto) << 8)); | ||
25 | |||
26 | return res; | ||
27 | } | ||
28 | |||
29 | #endif | ||