avr32: remove support for AVR32 architecture

[sfrench/cifs-2.6.git] / arch / avr32 / include / asm / checksum.h

diff --git a/arch/avr32/include/asm/checksum.h b/arch/avr32/include/asm/checksum.h
deleted file mode 100644 (file)
index 4ab7d5b..0000000
--- a/arch/avr32/include/asm/checksum.h
+++ /dev/null
@@ -1,150 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef __ASM_AVR32_CHECKSUM_H
-#define __ASM_AVR32_CHECKSUM_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
- */
-__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
- */
-__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((const void __force *)src, dst, len,
-                                        sum, err_ptr, NULL);
-}
-
-/*
- *     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;
-
-       __asm__ __volatile__(
-               "       ld.w    %0, %1++\n"
-               "       ld.w    %3, %1++\n"
-               "       sub     %2, 4\n"
-               "       add     %0, %3\n"
-               "       ld.w    %3, %1++\n"
-               "       adc     %0, %0, %3\n"
-               "       ld.w    %3, %1++\n"
-               "       adc     %0, %0, %3\n"
-               "       acr     %0\n"
-               "1:     ld.w    %3, %1++\n"
-               "       add     %0, %3\n"
-               "       acr     %0\n"
-               "       sub     %2, 1\n"
-               "       brne    1b\n"
-               "       lsl     %3, %0, 16\n"
-               "       andl    %0, 0\n"
-               "       mov     %2, 0xffff\n"
-               "       add     %0, %3\n"
-               "       adc     %0, %0, %2\n"
-               "       com     %0\n"
-               "       lsr     %0, 16\n"
-               : "=r"(sum), "=r"(iph), "=r"(ihl), "=r"(tmp)
-               : "1"(iph), "2"(ihl)
-               : "memory", "cc");
-       return (__force __sum16)sum;
-}
-
-/*
- *     Fold a partial checksum
- */
-
-static inline __sum16 csum_fold(__wsum sum)
-{
-       unsigned int tmp;
-
-       asm("   bfextu  %1, %0, 0, 16\n"
-           "   lsr     %0, 16\n"
-           "   add     %0, %1\n"
-           "   bfextu  %1, %0, 16, 16\n"
-           "   add     %0, %1"
-           : "=&r"(sum), "=&r"(tmp)
-           : "0"(sum));
-
-       return (__force __sum16)~sum;
-}
-
-static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
-                                       __u32 len, __u8 proto,
-                                       __wsum sum)
-{
-       asm("   add     %0, %1\n"
-           "   adc     %0, %0, %2\n"
-           "   adc     %0, %0, %3\n"
-           "   acr     %0"
-           : "=r"(sum)
-           : "r"(daddr), "r"(saddr), "r"(len + proto),
-             "0"(sum)
-           : "cc");
-
-       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,
-                                       __u32 len, __u8 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_AVR32_CHECKSUM_H */