1 files changed, 0 insertions, 250 deletions
diff --git a/include/asm-xtensa/checksum.h b/include/asm-xtensa/checksum.h
deleted file mode 100644
index 23534c60b3a..00000000000
--- a/include/asm-xtensa/checksum.h
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- * include/asm-xtensa/checksum.h
- *
- * 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.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- */
-
-#ifndef _XTENSA_CHECKSUM_H
-#define _XTENSA_CHECKSUM_H
-
-#include <linux/in6.h>
-#include <asm/variant/core.h>
-
-/*
- * 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);
-
-/*
- * the same as csum_partial, but copies from src while it
- * checksums, and handles user-space pointer exceptions correctly, when needed.
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- */
-
-asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst, int len, __wsum sum,
-						   int *src_err_ptr, int *dst_err_ptr);
-
-/*
- *	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().
- */
-static inline
-__wsum csum_partial_copy_nocheck(const void *src, void *dst,
-					int len, __wsum sum)
-{
-	return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL);
-}
-
-static inline
-__wsum csum_partial_copy_from_user(const void __user *src, void *dst,
-						int len, __wsum sum, int *err_ptr)
-{
-	return csum_partial_copy_generic((__force const void *)src, dst,
-					len, sum, err_ptr, NULL);
-}
-
-/*
- *	Fold a partial checksum
- */
-
-static __inline__ __sum16 csum_fold(__wsum sum)
-{
-	unsigned int __dummy;
-	__asm__("extui	%1, %0, 16, 16\n\t"
-		"extui	%0 ,%0, 0, 16\n\t"
-		"add	%0, %0, %1\n\t"
-		"slli	%1, %0, 16\n\t"
-		"add	%0, %0, %1\n\t"
-		"extui	%0, %0, 16, 16\n\t"
-		"neg	%0, %0\n\t"
-		"addi	%0, %0, -1\n\t"
-		"extui	%0, %0, 0, 16\n\t"
-		: "=r" (sum), "=&r" (__dummy)
-		: "0" (sum));
-	return (__force __sum16)sum;
-}
-
-/*
- *	This is a version of ip_compute_csum() optimized for IP headers,
- *	which always checksum on 4 octet boundaries.
- */
-static __inline__ __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
-{
-	unsigned int sum, tmp, endaddr;
-
-	__asm__ __volatile__(
-		"sub		%0, %0, %0\n\t"
-#if XCHAL_HAVE_LOOPS
-		"loopgtz	%2, 2f\n\t"
-#else
-		"beqz		%2, 2f\n\t"
-		"slli		%4, %2, 2\n\t"
-		"add		%4, %4, %1\n\t"
-		"0:\t"
-#endif
-		"l32i		%3, %1, 0\n\t"
-		"add		%0, %0, %3\n\t"
-		"bgeu		%0, %3, 1f\n\t"
-		"addi		%0, %0, 1\n\t"
-		"1:\t"
-		"addi		%1, %1, 4\n\t"
-#if !XCHAL_HAVE_LOOPS
-		"blt		%1, %4, 0b\n\t"
-#endif
-		"2:\t"
-	/* Since the input registers which are loaded with iph and ihl
-	   are modified, we must also specify them as outputs, or gcc
-	   will assume they contain their original values. */
-		: "=r" (sum), "=r" (iph), "=r" (ihl), "=&r" (tmp), "=&r" (endaddr)
-		: "1" (iph), "2" (ihl));
-
-	return	csum_fold(sum);
-}
-
-static __inline__ __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
-						   unsigned short len,
-						   unsigned short proto,
-						   __wsum sum)
-{
-
-#ifdef __XTENSA_EL__
-	unsigned long len_proto = (len + proto) << 8;
-#elif defined(__XTENSA_EB__)
-	unsigned long len_proto = len + proto;
-#else
-# error processor byte order undefined!
-#endif
-	__asm__("add	%0, %0, %1\n\t"
-		"bgeu	%0, %1, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"add	%0, %0, %2\n\t"
-		"bgeu	%0, %2, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"add	%0, %0, %3\n\t"
-		"bgeu	%0, %3, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		: "=r" (sum), "=r" (len_proto)
-		: "r" (daddr), "r" (saddr), "1" (len_proto), "0" (sum));
-	return 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));
-}
-
-#define _HAVE_ARCH_IPV6_CSUM
-static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
-					  const struct in6_addr *daddr,
-					  __u32 len, unsigned short proto,
-					  __wsum sum)
-{
-	unsigned int __dummy;
-	__asm__("l32i	%1, %2, 0\n\t"
-		"add	%0, %0, %1\n\t"
-		"bgeu	%0, %1, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"l32i	%1, %2, 4\n\t"
-		"add	%0, %0, %1\n\t"
-		"bgeu	%0, %1, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"l32i	%1, %2, 8\n\t"
-		"add	%0, %0, %1\n\t"
-		"bgeu	%0, %1, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"l32i	%1, %2, 12\n\t"
-		"add	%0, %0, %1\n\t"
-		"bgeu	%0, %1, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"l32i	%1, %3, 0\n\t"
-		"add	%0, %0, %1\n\t"
-		"bgeu	%0, %1, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"l32i	%1, %3, 4\n\t"
-		"add	%0, %0, %1\n\t"
-		"bgeu	%0, %1, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"l32i	%1, %3, 8\n\t"
-		"add	%0, %0, %1\n\t"
-		"bgeu	%0, %1, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"l32i	%1, %3, 12\n\t"
-		"add	%0, %0, %1\n\t"
-		"bgeu	%0, %1, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"add	%0, %0, %4\n\t"
-		"bgeu	%0, %4, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		"add	%0, %0, %5\n\t"
-		"bgeu	%0, %5, 1f\n\t"
-		"addi	%0, %0, 1\n\t"
-		"1:\t"
-		: "=r" (sum), "=&r" (__dummy)
-		: "r" (saddr), "r" (daddr),
-		  "r" (htonl(len)), "r" (htonl(proto)), "0" (sum));
-
-	return csum_fold(sum);
-}
-
-/*
- *	Copy and checksum to user
- */
-#define HAVE_CSUM_COPY_USER
-static __inline__ __wsum csum_and_copy_to_user(const void *src, void __user *dst,
-				    int len, __wsum sum, int *err_ptr)
-{
-	if (access_ok(VERIFY_WRITE, dst, len))
-		return csum_partial_copy_generic(src, dst, len, sum, NULL, err_ptr);
-
-	if (len)
-		*err_ptr = -EFAULT;
-
-	return (__force __wsum)-1; /* invalid checksum */
-}
-#endif