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sparc64: Delete __ret_efault.

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[ Upstream commit aa95ce361ed95c72ac42dcb315166bce5cf1a014 ]

It is completely unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David S. Miller 2016-08-10 14:41:33 -07:00 committed by Greg Kroah-Hartman
parent f5a69ff748
commit 756723ad55
3 changed files with 1 additions and 48 deletions
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41
arch/sparc/include/asm/uaccess_64.h
View File

@ -98,7 +98,6 @@ struct exception_table_entry {
unsigned int insn, fixup;
};
void __ret_efault(void);
void __retl_efault(void);
/* Uh, these should become the main single-value transfer routines..
@ -179,20 +178,6 @@ int __put_user_bad(void);
__gu_ret; \
})
#define __get_user_nocheck_ret(data, addr, size, type, retval) ({ \
register unsigned long __gu_val __asm__ ("l1"); \
switch (size) { \
case 1: __get_user_asm_ret(__gu_val, ub, addr, retval); break; \
case 2: __get_user_asm_ret(__gu_val, uh, addr, retval); break; \
case 4: __get_user_asm_ret(__gu_val, uw, addr, retval); break; \
case 8: __get_user_asm_ret(__gu_val, x, addr, retval); break; \
default: \
if (__get_user_bad()) \
return retval; \
} \
data = (__force type) __gu_val; \
})
#define __get_user_asm(x, size, addr, ret) \
__asm__ __volatile__( \
"/* Get user asm, inline. */\n" \
@ -214,32 +199,6 @@ __asm__ __volatile__( \
: "=r" (ret), "=r" (x) : "r" (__m(addr)), \
"i" (-EFAULT))
#define __get_user_asm_ret(x, size, addr, retval) \
if (__builtin_constant_p(retval) && retval == -EFAULT) \
__asm__ __volatile__( \
"/* Get user asm ret, inline. */\n" \
"1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \
".section __ex_table,\"a\"\n\t" \
".align 4\n\t" \
".word 1b,__ret_efault\n\n\t" \
".previous\n\t" \
: "=r" (x) : "r" (__m(addr))); \
else \
__asm__ __volatile__( \
"/* Get user asm ret, inline. */\n" \
"1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \
".section .fixup,#alloc,#execinstr\n\t" \
".align 4\n" \
"3:\n\t" \
"ret\n\t" \
" restore %%g0, %2, %%o0\n\n\t" \
".previous\n\t" \
".section __ex_table,\"a\"\n\t" \
".align 4\n\t" \
".word 1b, 3b\n\n\t" \
".previous\n\t" \
: "=r" (x) : "r" (__m(addr)), "i" (retval))
int __get_user_bad(void);
unsigned long __must_check ___copy_from_user(void *to,

7
arch/sparc/kernel/head_64.S
View File

@ -922,12 +922,7 @@ prom_tba: .xword 0
tlb_type: .word 0 /* Must NOT end up in BSS */
.section ".fixup",#alloc,#execinstr
.globl __ret_efault, __retl_efault, __ret_one, __retl_one
ENTRY(__ret_efault)
ret
restore %g0, -EFAULT, %o0
ENDPROC(__ret_efault)
.globl __retl_efault, __ret_one, __retl_one
ENTRY(__retl_efault)
retl
mov -EFAULT, %o0

1
arch/sparc/kernel/sparc_ksyms_64.c
View File

@ -27,7 +27,6 @@ EXPORT_SYMBOL(__flushw_user);
EXPORT_SYMBOL_GPL(real_hard_smp_processor_id);
/* from head_64.S */
EXPORT_SYMBOL(__ret_efault);
EXPORT_SYMBOL(tlb_type);
EXPORT_SYMBOL(sun4v_chip_type);
EXPORT_SYMBOL(prom_root_node);