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s390/extable: move extable related functions to mm/extable.c 

Just like arm64, riscv, and x86 move extable related functions to
mm/extable.c. This is currently only one function, but this will
change with subsequent changes.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2022-02-28 11:37:52 +01:00 committed by Vasily Gorbik
parent d09a307fde
commit 0741ec112c
3 changed files with 17 additions and 13 deletions
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2
arch/s390/mm/Makefile
View File

@ -4,7 +4,7 @@
#
obj-y := init.o fault.o extmem.o mmap.o vmem.o maccess.o
obj-y += page-states.o pageattr.o pgtable.o pgalloc.o
obj-y += page-states.o pageattr.o pgtable.o pgalloc.o extable.o
obj-$(CONFIG_CMM) += cmm.o
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o

16
arch/s390/mm/extable.c Normal file
View File

@ -0,0 +1,16 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/extable.h>
#include <asm/extable.h>
const struct exception_table_entry *s390_search_extables(unsigned long addr)
{
const struct exception_table_entry *fixup;
size_t num;
fixup = search_exception_tables(addr);
if (fixup)
return fixup;
num = __stop_amode31_ex_table - __start_amode31_ex_table;
return search_extable(__start_amode31_ex_table, num, addr);
}

12
arch/s390/mm/fault.c
View File

@ -228,18 +228,6 @@ static noinline void do_sigsegv(struct pt_regs *regs, int si_code)
(void __user *)(regs->int_parm_long & __FAIL_ADDR_MASK));
}
const struct exception_table_entry *s390_search_extables(unsigned long addr)
{
const struct exception_table_entry *fixup;
size_t num;
fixup = search_exception_tables(addr);
if (fixup)
return fixup;
num = __stop_amode31_ex_table - __start_amode31_ex_table;
return search_extable(__start_amode31_ex_table, num, addr);
}
static noinline void do_no_context(struct pt_regs *regs)
{
const struct exception_table_entry *fixup;