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sparc64: Fix not SRA'ed %o5 in 32-bit traced syscall

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(From v1 to v2: changed comment)

On the way linux_sparc_syscall32->linux_syscall_trace32->goto 2f,
register %o5 doesn't clear its second 32-bit.

Fix that.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kirill Tkhai 2013-07-26 17:21:12 +04:00 committed by David S. Miller
parent 37d6fa34a7
commit ab2abda637
1 changed files with 4 additions and 4 deletions
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8
arch/sparc/kernel/syscalls.S
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@ -152,7 +152,7 @@ linux_syscall_trace32:
srl %i4, 0, %o4
srl %i1, 0, %o1
srl %i2, 0, %o2
ba,pt %xcc, 2f
ba,pt %xcc, 5f
srl %i3, 0, %o3
linux_syscall_trace:
@ -182,13 +182,13 @@ linux_sparc_syscall32:
srl %i1, 0, %o1 ! IEU0 Group
ldx [%g6 + TI_FLAGS], %l0 ! Load
srl %i5, 0, %o5 ! IEU1
srl %i3, 0, %o3 ! IEU0
srl %i2, 0, %o2 ! IEU0 Group
andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
bne,pn %icc, linux_syscall_trace32 ! CTI
mov %i0, %l5 ! IEU1
call %l7 ! CTI Group brk forced
srl %i3, 0, %o3 ! IEU0
5: call %l7 ! CTI Group brk forced
srl %i5, 0, %o5 ! IEU1
ba,a,pt %xcc, 3f
/* Linux native system calls enter here... */