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s390/extable: use generic search and sort routines

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Replace the arch specific versions of search_extable() and
sort_extable() with calls to the generic ones, which now support
relative exception tables as well.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ard Biesheuvel
2016-03-22 14:28:14 -07:00
committed by Linus Torvalds
parent e77986b560
commit c352e8b6de
3 changed files with 2 additions and 93 deletions
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8
arch/s390/include/asm/uaccess.h
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@@ -79,18 +79,12 @@ struct exception_table_entry
int insn, fixup;
};
static inline unsigned long extable_insn(const struct exception_table_entry *x)
{
return (unsigned long)&x->insn + x->insn;
}
static inline unsigned long extable_fixup(const struct exception_table_entry *x)
{
return (unsigned long)&x->fixup + x->fixup;
}
#define ARCH_HAS_SORT_EXTABLE
#define ARCH_HAS_SEARCH_EXTABLE
#define ARCH_HAS_RELATIVE_EXTABLE
/**
* __copy_from_user: - Copy a block of data from user space, with less checking.