ARM: rockchip: rk3228: implement function rk3228_restart

[firefly-linux-kernel-4.4.55.git] / arch / arm / kernel / entry-common.S

diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 11d68917d3b1ec23fd6f6156c2030f325b04d2b6..ce77f7b78ff3a25f3a0eb67bb95553d03cebcf15 100644 (file)
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -32,7 +32,9 @@ ret_fast_syscall:
  UNWIND(.fnstart       )
  UNWIND(.cantunwind    )
        disable_irq                             @ disable interrupts
-       ldr     r1, [tsk, #TI_FLAGS]
+       ldr     r1, [tsk, #TI_FLAGS]            @ re-check for syscall tracing
+       tst     r1, #_TIF_SYSCALL_WORK
+       bne     __sys_trace_return
        tst     r1, #_TIF_WORK_MASK
        bne     fast_work_pending
        asm_trace_hardirqs_on