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authorTiezhu Yang <yangtiezhu@loongson.cn>2022-09-29 10:39:58 +0300
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2022-09-30 17:50:00 +0300
commit8e6ec6ce02b5a58f01099118ddfed71d3f657b1c (patch)
treea64711f387b6254a9cd41c24072f277a1b3b76cb /arch
parent0668951705d356d77c8263010c7ae59e78fdb2c6 (diff)
downloadlinux-8e6ec6ce02b5a58f01099118ddfed71d3f657b1c.tar.xz
MIPS: Simplify __bswapdi2() and __bswapsi2()
Use macro definitions ___constant_swab64 and ___constant_swab32 to simplify __bswapdi2() and __bswapsi2(). Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/lib/bswapdi.c10
-rw-r--r--arch/mips/lib/bswapsi.c6
2 files changed, 4 insertions, 12 deletions
diff --git a/arch/mips/lib/bswapdi.c b/arch/mips/lib/bswapdi.c
index 1d020e1c96a0..88242dc7de17 100644
--- a/arch/mips/lib/bswapdi.c
+++ b/arch/mips/lib/bswapdi.c
@@ -1,19 +1,13 @@
// 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);
diff --git a/arch/mips/lib/bswapsi.c b/arch/mips/lib/bswapsi.c
index 02d9df489197..2ed655497de5 100644
--- a/arch/mips/lib/bswapsi.c
+++ b/arch/mips/lib/bswapsi.c
@@ -1,15 +1,13 @@
// 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);