From 244599469f4c5860c8a4ae8fa8c6907a10caeccf Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 2 Sep 2010 22:59:58 +0200
Subject: [PATCH] MIPS: Audit: Fix hang in entry.S.
_TIF_WORK_MASK false had _TIF_SYSCALL_AUDIT set. If a thread's
_TIF_SYSCALL_AUDIT is ever set this will lead to an endless loop on the
way out from a syscall.
Currently this is only a theoretic bug as init/Kconfig doesn't allow
AUDIT_SYSCALL to be enabled for MIPS.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/include/asm/thread_info.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 2376f2e06e470a..70df9c0d3c5be2 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -146,7 +146,8 @@ register struct thread_info *__current_thread_info __asm__("$28");
#define _TIF_LOAD_WATCH (1<<TIF_LOAD_WATCH)
/* work to do on interrupt/exception return */
-#define _TIF_WORK_MASK (0x0000ffef & ~_TIF_SECCOMP)
+#define _TIF_WORK_MASK (0x0000ffef & \
+ ~(_TIF_SECCOMP | _TIF_SYSCALL_AUDIT))
/* work to do on any return to u-space */
#define _TIF_ALLWORK_MASK (0x8000ffff & ~_TIF_SECCOMP)
--
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