summaryrefslogtreecommitdiffstats
path: root/include/asm-cris/arch-v10/checksum.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-cris/arch-v10/checksum.h')
-rw-r--r--include/asm-cris/arch-v10/checksum.h29
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 @@
-#ifndef _CRIS_ARCH_CHECKSUM_H
-#define _CRIS_ARCH_CHECKSUM_H
-
-/* Checksum some values used in TCP/UDP headers.
- *
- * The gain by doing this in asm is that C will not generate carry-additions
- * for the 32-bit components of the checksum, so otherwise we would have had
- * to split all of those into 16-bit components, then add.
- */
-
-static inline __wsum
-csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
- unsigned short proto, __wsum sum)
-{
- __wsum res;
- __asm__ ("add.d %2, %0\n\t"
- "ax\n\t"
- "add.d %3, %0\n\t"
- "ax\n\t"
- "add.d %4, %0\n\t"
- "ax\n\t"
- "addq 0, %0\n"
- : "=r" (res)
- : "0" (sum), "r" (daddr), "r" (saddr), "r" ((len + proto) << 8));
-
- return res;
-}
-
-#endif
OpenPOWER on IntegriCloud