FreeBSD/Linux Kernel Cross Reference
sys/compat/linuxkpi/common/include/asm/unaligned.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause
      *
      * Copyright (c) 2020 The FreeBSD Foundation
      *
      * This software was developed by Björn Zeeb under sponsorship from
      * the FreeBSD Foundation.
      *
      * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _LINUXKPI_ASM_UNALIGNED_H
    #define _LINUXKPI_ASM_UNALIGNED_H
    
    #include <linux/types.h>
    #include <asm/byteorder.h>
    
    static __inline uint16_t
    get_unaligned_le16(const void *p)
    {
    
            return (le16_to_cpup((const __le16 *)p));
    }
    
    static __inline uint32_t
    get_unaligned_le32(const void *p)
    {
    
            return (le32_to_cpup((const __le32 *)p));
    }
    
    static __inline void
    put_unaligned_le32(__le32 v, void *p)
    {
            __le32 x;
    
            x = cpu_to_le32(v);
            memcpy(p, &x, sizeof(x));
    }
    
    static __inline void
    put_unaligned_le64(__le64 v, void *p)
    {
            __le64 x;
    
            x = cpu_to_le64(v);
            memcpy(p, &x, sizeof(x));
    }
    
    static __inline uint16_t
    get_unaligned_be16(const void *p)
    {
    
            return (be16_to_cpup((const __be16 *)p));
    }
    
    static __inline uint32_t
    get_unaligned_be32(const void *p)
    {
    
            return (be32_to_cpup((const __be32 *)p));
    }
    
    #endif  /* _LINUXKPI_ASM_UNALIGNED_H */

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