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Commit 048f039f authored by Linus Torvalds's avatar Linus Torvalds
Browse files
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: set flow handler for secondary interrupt controller of 5249
  m68knommu: remove use of IRQ_FLG_LOCK from 68360 platform support
  m68knommu: fix dereference of port.tty
  m68knommu: add missing linker __modver section
  m68knommu: fix mis-named variable int set_irq_chip loop
  m68knommu: add optimize memmove() function
  m68k: remove arch specific non-optimized memcmp()
  m68knommu: fix use of un-defined _TIF_WORK_MASK
  m68knommu: Rename m548x_wdt.c to m54xx_wdt.c
  m68knommu: fix m548x_wdt.c compilation after headers renaming
  m68knommu: Remove dependencies on nonexistent M68KNOMMU
parents b90be866 86d306c9
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+1 −3
Original line number Diff line number Diff line
@@ -99,14 +99,12 @@ static inline int strcmp(const char *cs, const char *ct)
		: "+a" (cs), "+a" (ct), "=d" (res));
	return res;
}
#endif /* CONFIG_COLDFIRE */

#define __HAVE_ARCH_MEMMOVE
extern void *memmove(void *, const void *, __kernel_size_t);

#define __HAVE_ARCH_MEMCMP
extern int memcmp(const void *, const void *, __kernel_size_t);
#define memcmp(d, s, n) __builtin_memcmp(d, s, n)
#endif /* CONFIG_COLDFIRE */

#define __HAVE_ARCH_MEMSET
extern void *memset(void *, int, __kernel_size_t);
+0 −11
Original line number Diff line number Diff line
@@ -243,14 +243,3 @@ void *memmove(void *dest, const void *src, size_t n)
	return xdest;
}
EXPORT_SYMBOL(memmove);

int memcmp(const void *cs, const void *ct, size_t count)
{
	const unsigned char *su1, *su2;

	for (su1 = cs, su2 = ct; count > 0; ++su1, ++su2, count--)
		if (*su1 != *su2)
			return *su1 < *su2 ? -1 : +1;
	return 0;
}
EXPORT_SYMBOL(memcmp);
+6 −0
Original line number Diff line number Diff line
@@ -141,6 +141,12 @@ SECTIONS {
		*(__param)
		__stop___param = .;

		/* Built-in module versions */
		. = ALIGN(4) ;
		__start___modver = .;
		*(__modver)
		__stop___modver = .;

		. = ALIGN(4) ;
		_etext = . ;
	} > TEXT
+1 −1
Original line number Diff line number Diff line
@@ -4,4 +4,4 @@

lib-y	:= ashldi3.o ashrdi3.o lshrdi3.o \
	   muldi3.o mulsi3.o divsi3.o udivsi3.o modsi3.o umodsi3.o \
	   checksum.o memcpy.o memset.o delay.o
	   checksum.o memcpy.o memmove.o memset.o delay.o
+105 −0
Original line number Diff line number Diff line
/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive
 * for more details.
 */

#define __IN_STRING_C

#include <linux/module.h>
#include <linux/string.h>

void *memmove(void *dest, const void *src, size_t n)
{
	void *xdest = dest;
	size_t temp;

	if (!n)
		return xdest;

	if (dest < src) {
		if ((long)dest & 1) {
			char *cdest = dest;
			const char *csrc = src;
			*cdest++ = *csrc++;
			dest = cdest;
			src = csrc;
			n--;
		}
		if (n > 2 && (long)dest & 2) {
			short *sdest = dest;
			const short *ssrc = src;
			*sdest++ = *ssrc++;
			dest = sdest;
			src = ssrc;
			n -= 2;
		}
		temp = n >> 2;
		if (temp) {
			long *ldest = dest;
			const long *lsrc = src;
			temp--;
			do
				*ldest++ = *lsrc++;
			while (temp--);
			dest = ldest;
			src = lsrc;
		}
		if (n & 2) {
			short *sdest = dest;
			const short *ssrc = src;
			*sdest++ = *ssrc++;
			dest = sdest;
			src = ssrc;
		}
		if (n & 1) {
			char *cdest = dest;
			const char *csrc = src;
			*cdest = *csrc;
		}
	} else {
		dest = (char *)dest + n;
		src = (const char *)src + n;
		if ((long)dest & 1) {
			char *cdest = dest;
			const char *csrc = src;
			*--cdest = *--csrc;
			dest = cdest;
			src = csrc;
			n--;
		}
		if (n > 2 && (long)dest & 2) {
			short *sdest = dest;
			const short *ssrc = src;
			*--sdest = *--ssrc;
			dest = sdest;
			src = ssrc;
			n -= 2;
		}
		temp = n >> 2;
		if (temp) {
			long *ldest = dest;
			const long *lsrc = src;
			temp--;
			do
				*--ldest = *--lsrc;
			while (temp--);
			dest = ldest;
			src = lsrc;
		}
		if (n & 2) {
			short *sdest = dest;
			const short *ssrc = src;
			*--sdest = *--ssrc;
			dest = sdest;
			src = ssrc;
		}
		if (n & 1) {
			char *cdest = dest;
			const char *csrc = src;
			*--cdest = *--csrc;
		}
	}
	return xdest;
}
EXPORT_SYMBOL(memmove);
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