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-rw-r--r--arch/s390/kernel/early.c34
1 files changed, 1 insertions, 33 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 32daa0f84325..f40e1f293619 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -310,38 +310,6 @@ static int __init cad_setup(char *str)
}
early_param("cad", cad_setup);
-static __init void memmove_early(void *dst, const void *src, size_t n)
-{
- unsigned long addr;
- long incr;
- psw_t old;
-
- if (!n)
- return;
- incr = 1;
- if (dst > src) {
- incr = -incr;
- dst += n - 1;
- src += n - 1;
- }
- old = S390_lowcore.program_new_psw;
- S390_lowcore.program_new_psw.mask = __extract_psw();
- asm volatile(
- " larl %[addr],1f\n"
- " stg %[addr],%[psw_pgm_addr]\n"
- "0: mvc 0(1,%[dst]),0(%[src])\n"
- " agr %[dst],%[incr]\n"
- " agr %[src],%[incr]\n"
- " brctg %[n],0b\n"
- "1:\n"
- : [addr] "=&d" (addr),
- [psw_pgm_addr] "=Q" (S390_lowcore.program_new_psw.addr),
- [dst] "+&a" (dst), [src] "+&a" (src), [n] "+d" (n)
- : [incr] "d" (incr)
- : "cc", "memory");
- S390_lowcore.program_new_psw = old;
-}
-
static __init noinline void rescue_initrd(void)
{
#ifdef CONFIG_BLK_DEV_INITRD
@@ -356,7 +324,7 @@ static __init noinline void rescue_initrd(void)
return;
if (INITRD_START >= min_initrd_addr)
return;
- memmove_early((void *) min_initrd_addr, (void *) INITRD_START, INITRD_SIZE);
+ memmove((void *) min_initrd_addr, (void *) INITRD_START, INITRD_SIZE);
INITRD_START = min_initrd_addr;
#endif
}
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