/*

 * Copyright (c) 2020 Red Hat, Inc.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 * 

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

 * 02110-1301, USA. 

 *

 * $Id: //eng/uds-releases/jasper/kernelLinux/uds/numericDefs.h#1 $

 */

#ifndef LINUX_KERNEL_NUMERIC_DEFS_H

#define LINUX_KERNEL_NUMERIC_DEFS_H 1

#ifdef __x86_64__

/*

 * __builtin_bswap16 should work fine here too, but check for a

 * performance impact before changing it, just to be safe.

 */

#define bswap_16(x) \

  (__extension__                                                        \

   ({ register unsigned short int __v, __x = (unsigned short int) (x);  \

     __asm__ ("rorw $8, %w0"                                            \

              : "=r" (__v)                                              \

              : "0" (__x)                                               \

              : "cc");                                                  \

     __v; }))

#else

#define bswap_16(x) __builtin_bswap16(x)

#endif

#endif /* LINUX_KERNEL_NUMERIC_DEFS_H */