Commit 8e6ec6ce authored by Tiezhu Yang's avatar Tiezhu Yang Committed by Thomas Bogendoerfer
Browse files

MIPS: Simplify __bswapdi2() and __bswapsi2() 



Use macro definitions ___constant_swab64 and ___constant_swab32
to simplify __bswapdi2() and __bswapsi2().

Signed-off-by: default avatarTiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
parent 06689517

arch/mips/lib/bswapdi.c

+2 −8
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

#include <linux/export.h>

#include <linux/compiler.h>

#include <uapi/linux/swab.h>



/* To silence -Wmissing-prototypes. */

unsigned long long __bswapdi2(unsigned long long u);



unsigned long long notrace __bswapdi2(unsigned long long u)

{

	return (((u) & 0xff00000000000000ull) >> 56) |

	       (((u) & 0x00ff000000000000ull) >> 40) |

	       (((u) & 0x0000ff0000000000ull) >> 24) |

	       (((u) & 0x000000ff00000000ull) >>  8) |

	       (((u) & 0x00000000ff000000ull) <<  8) |

	       (((u) & 0x0000000000ff0000ull) << 24) |

	       (((u) & 0x000000000000ff00ull) << 40) |

	       (((u) & 0x00000000000000ffull) << 56);

	return ___constant_swab64(u);

}

EXPORT_SYMBOL(__bswapdi2);

arch/mips/lib/bswapsi.c

+2 −4
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

#include <linux/export.h>

#include <linux/compiler.h>

#include <uapi/linux/swab.h>



/* To silence -Wmissing-prototypes. */

unsigned int __bswapsi2(unsigned int u);



unsigned int notrace __bswapsi2(unsigned int u)

{

	return (((u) & 0xff000000) >> 24) |

	       (((u) & 0x00ff0000) >>  8) |

	       (((u) & 0x0000ff00) <<  8) |

	       (((u) & 0x000000ff) << 24);

	return ___constant_swab32(u);

}

EXPORT_SYMBOL(__bswapsi2);