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[SPARC64]: __bzero_noasi --> __clear_user

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-02-17 10:35:23 -08:00
parent 46f8604714
commit c857e3fdbc
3 changed files with 11 additions and 18 deletions
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2
arch/sparc64/kernel/sparc64_ksyms.c
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@ -335,7 +335,7 @@ EXPORT_SYMBOL(copy_to_user_fixup);
EXPORT_SYMBOL(copy_from_user_fixup);
EXPORT_SYMBOL(copy_in_user_fixup);
EXPORT_SYMBOL(__strncpy_from_user);
EXPORT_SYMBOL(__bzero_noasi);
EXPORT_SYMBOL(__clear_user);
/* Various address conversion macros use this. */
EXPORT_SYMBOL(phys_base);

18
arch/sparc64/lib/bzero.S
View file

@ -98,12 +98,12 @@ __bzero_done:
.text; \
.align 4;
.globl __bzero_noasi
.type __bzero_noasi, #function
__bzero_noasi: /* %o0=buf, %o1=len */
brz,pn %o1, __bzero_noasi_done
.globl __clear_user
.type __clear_user, #function
__clear_user: /* %o0=buf, %o1=len */
brz,pn %o1, __clear_user_done
cmp %o1, 16
bl,pn %icc, __bzero_noasi_tiny
bl,pn %icc, __clear_user_tiny
EX_ST(prefetcha [%o0 + 0x00] %asi, #n_writes)
andcc %o0, 0x3, %g0
be,pt %icc, 2f
@ -145,14 +145,14 @@ __bzero_noasi: /* %o0=buf, %o1=len */
subcc %g1, 8, %g1
bne,pt %icc, 5b
add %o0, 0x8, %o0
6: brz,pt %o1, __bzero_noasi_done
6: brz,pt %o1, __clear_user_done
nop
__bzero_noasi_tiny:
__clear_user_tiny:
1: EX_ST(stba %g0, [%o0 + 0x00] %asi)
subcc %o1, 1, %o1
bne,pt %icc, 1b
add %o0, 1, %o0
__bzero_noasi_done:
__clear_user_done:
retl
clr %o0
.size __bzero_noasi, .-__bzero_noasi
.size __clear_user, .-__clear_user

9
include/asm-sparc64/uaccess.h
View file

@ -252,14 +252,7 @@ copy_in_user(void __user *to, void __user *from, unsigned long size)
}
#define __copy_in_user copy_in_user
extern unsigned long __must_check __bzero_noasi(void __user *, unsigned long);
static inline unsigned long __must_check
__clear_user(void __user *addr, unsigned long size)
{
return __bzero_noasi(addr, size);
}
extern unsigned long __must_check __clear_user(void __user *, unsigned long);
#define clear_user __clear_user