1 files changed, 11 insertions, 0 deletions

diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index bc08c98d008d..4845d51e88a6 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -952,8 +952,17 @@ ENDPROC(_evt_up_evt14)
 #ifdef CONFIG_IPIPE
 
 _resume_kernel_from_int:
+        r1 = LO(~0x8000) (Z);
+        r1 = r0 & r1;
+        r0 = 1;
+        r0 = r1 - r0;
+        r2 = r1 & r0;
+        cc = r2 == 0;
+        /* Sync the root stage only from the outer interrupt level. */
+        if !cc jump .Lnosync;
         r0.l = ___ipipe_sync_root;
         r0.h = ___ipipe_sync_root;
+        [--sp] = reti;
         [--sp] = rets;
         [--sp] = ( r7:4, p5:3 );
         SP += -12;
@@ -961,6 +970,8 @@ _resume_kernel_from_int:
         SP += 12;
         ( r7:4, p5:3 ) = [sp++];
         rets = [sp++];
+        reti = [sp++];
+.Lnosync:
         rts
 #elif defined(CONFIG_PREEMPT)