[ 04/48] MIPS: Cleanup flags in syscall flags handlers.

From: Willy Tarreau
Date: Sun Nov 16 2014 - 17:08:50 EST


2.6.32-longterm review patch. If anyone has any objections, please let me know.

------------------

From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

This will simplify further modifications.

Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
(cherry picked from commit e7f3b48af7be9f8007a224663a5b91340626fed5)
[wt: this patch is only there to ease integration of next one]
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
arch/mips/include/asm/thread_info.h | 2 ++
arch/mips/kernel/scall32-o32.S | 2 +-
arch/mips/kernel/scall64-64.S | 2 +-
arch/mips/kernel/scall64-n32.S | 2 +-
arch/mips/kernel/scall64-o32.S | 2 +-
5 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 0e50757..2ef1662 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -145,6 +145,8 @@ register struct thread_info *__current_thread_info __asm__("$28");
#define _TIF_FPUBOUND (1<<TIF_FPUBOUND)
#define _TIF_LOAD_WATCH (1<<TIF_LOAD_WATCH)

+#define _TIF_WORK_SYSCALL_ENTRY (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
+
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK (0x0000ffef & ~_TIF_SECCOMP)
/* work to do on any return to u-space */
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index fd2a9bb..b72c554 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -52,7 +52,7 @@ NESTED(handle_sys, PT_SIZE, sp)

stack_done:
lw t0, TI_FLAGS($28) # syscall tracing enabled?
- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+ li t1, _TIF_WORK_SYSCALL_ENTRY
and t0, t1
bnez t0, syscall_trace_entry # -> yes

diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 18bf7f3..eaa345b 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -54,7 +54,7 @@ NESTED(handle_sys64, PT_SIZE, sp)

sd a3, PT_R26(sp) # save a3 for syscall restarting

- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+ li t1, _TIF_WORK_SYSCALL_ENTRY
LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
and t0, t1, t0
bnez t0, syscall_trace_entry
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 6ebc079..0a51c3d 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -53,7 +53,7 @@ NESTED(handle_sysn32, PT_SIZE, sp)

sd a3, PT_R26(sp) # save a3 for syscall restarting

- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+ li t1, _TIF_WORK_SYSCALL_ENTRY
LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
and t0, t1, t0
bnez t0, n32_syscall_trace_entry
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 14dde4c..33ed571 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -81,7 +81,7 @@ NESTED(handle_sys, PT_SIZE, sp)
PTR 4b, bad_stack
.previous

- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+ li t1, _TIF_WORK_SYSCALL_ENTRY
LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
and t0, t1, t0
bnez t0, trace_a_syscall
--
1.7.12.2.21.g234cd45.dirty



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