parisc: Drop __arch_swab16(), arch_swab24(), _arch_swab32() and __arch_swab64() functions

No need to keep those as inline assembly functions, the compiler now
generates the same or even better optimized code.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/swab.h b/arch/parisc/include/uapi/asm/swab.h
deleted file mode 100644 (file)
index 35fb2d1..0000000
--- a/arch/parisc/include/uapi/asm/swab.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _PARISC_SWAB_H
-#define _PARISC_SWAB_H
-
-#include <asm/bitsperlong.h>
-#include <linux/types.h>
-#include <linux/compiler.h>
-
-#define __SWAB_64_THRU_32__
-
-static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
-{
-       __asm__("dep %0, 15, 8, %0\n\t"         /* deposit 00ab -> 0bab */
-               "shd %%r0, %0, 8, %0"           /* shift 000000ab -> 00ba */
-               : "=r" (x)
-               : "0" (x));
-       return x;
-}
-#define __arch_swab16 __arch_swab16
-
-static inline __attribute_const__ __u32 __arch_swab24(__u32 x)
-{
-       __asm__("shd %0, %0, 8, %0\n\t"         /* shift xabcxabc -> cxab */
-               "dep %0, 15, 8, %0\n\t"         /* deposit cxab -> cbab */
-               "shd %%r0, %0, 8, %0"           /* shift 0000cbab -> 0cba */
-               : "=r" (x)
-               : "0" (x));
-       return x;
-}
-
-static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
-{
-       unsigned int temp;
-       __asm__("shd %0, %0, 16, %1\n\t"        /* shift abcdabcd -> cdab */
-               "dep %1, 15, 8, %1\n\t"         /* deposit cdab -> cbab */
-               "shd %0, %1, 8, %0"             /* shift abcdcbab -> dcba */
-               : "=r" (x), "=&r" (temp)
-               : "0" (x));
-       return x;
-}
-#define __arch_swab32 __arch_swab32
-
-#if __BITS_PER_LONG > 32
-/*
-** From "PA-RISC 2.0 Architecture", HP Professional Books.
-** See Appendix I page 8 , "Endian Byte Swapping".
-**
-** Pretty cool algorithm: (* == zero'd bits)
-**      PERMH   01234567 -> 67452301 into %0
-**      HSHL    67452301 -> 7*5*3*1* into %1
-**      HSHR    67452301 -> *6*4*2*0 into %0
-**      OR      %0 | %1  -> 76543210 into %0 (all done!)
-*/
-static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
-{
-       __u64 temp;
-       __asm__("permh,3210 %0, %0\n\t"
-               "hshl %0, 8, %1\n\t"
-               "hshr,u %0, 8, %0\n\t"
-               "or %1, %0, %0"
-               : "=r" (x), "=&r" (temp)
-               : "0" (x));
-       return x;
-}
-#define __arch_swab64 __arch_swab64
-#endif /* __BITS_PER_LONG > 32 */
-
-#endif /* _PARISC_SWAB_H */