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alpha: fix syscall entry in !AUDUT_SYSCALL case

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[ Upstream commit f7b2431a6d22f7a91c567708e071dfcd6d66db14 ]

We only want to take the slow path if SYSCALL_TRACE or SYSCALL_AUDIT is
set; on !AUDIT_SYSCALL configs the current tree hits it whenever _any_
thread flag (including NEED_RESCHED, NOTIFY_SIGNAL, etc.) happens to
be set.

Fixes: a9302e8439 "alpha: Enable system-call auditing support"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Al Viro 2021-09-18 18:18:48 -04:00 • committed by Greg Kroah-Hartman
commit f0ff6c60bc
1 changed files with 3 additions and 1 deletions
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4
arch/alpha/kernel/entry.S
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@ -469,8 +469,10 @@ entSys:
#ifdef CONFIG_AUDITSYSCALL
lda $6, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
and $3, $6, $3
#endif
bne $3, strace
#else
blbs $3, strace /* check for SYSCALL_TRACE in disguise */
#endif
beq $4, 1f
ldq $27, 0($5)
1: jsr $26, ($27), sys_ni_syscall