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[SPARC64]: Fix fault handling in unaligned trap handler.

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We were not calling kernel_mna_trap_fault() correctly.
Instead of being fancy, just return 0 vs. -EFAULT from
the assembler stubs, and handle that return value as
appropriate.

Create an "__retl_efault" stub for assembler exception
table entries and use it where possible.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2005-09-28 20:41:45 -07:00
parent 8cf14af0a7
commit 5fd29752f0
6 changed files with 95 additions and 87 deletions
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16
arch/sparc64/lib/strncpy_from_user.S
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@@ -125,15 +125,11 @@ __strncpy_from_user:
add %o2, %o3, %o0
.size __strncpy_from_user, .-__strncpy_from_user
.section .fixup,#alloc,#execinstr
.align 4
4: retl
mov -EFAULT, %o0
.section __ex_table,#alloc
.align 4
.word 60b, 4b
.word 61b, 4b
.word 62b, 4b
.word 63b, 4b
.word 64b, 4b
.word 60b, __retl_efault
.word 61b, __retl_efault
.word 62b, __retl_efault
.word 63b, __retl_efault
.word 64b, __retl_efault
.previous