1/* 2 * include/asm-xtensa/unaligned.h 3 * 4 * Xtensa doesn't handle unaligned accesses efficiently. 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 * 10 * Copyright (C) 2001 - 2005 Tensilica Inc. 11 */ 12 13#ifndef _XTENSA_UNALIGNED_H 14#define _XTENSA_UNALIGNED_H 15 16#include <linux/string.h> 17 18/* Use memmove here, so gcc does not insert a __builtin_memcpy. */ 19 20#define get_unaligned(ptr) \ 21 ({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; }) 22 23#define put_unaligned(val, ptr) \ 24 ({ __typeof__(*(ptr)) __tmp = (val); \ 25 memmove((ptr), &__tmp, sizeof(*(ptr))); \ 26 (void)0; }) 27 28#endif /* _XTENSA_UNALIGNED_H */ 29