powerpc/booke: clear DBCR0_BT in user_disable_single_step()
BookE version of user_disable_single_step() clears DBCR0_IC for the
instruction completion debug, but did not also clear DBCR0_BT for the
branch taken exception. This behavior was lost by the 2/2010 patch.
Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index aedfd41..01be88b 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -895,7 +895,7 @@
* And, after doing so, if all debug flags are off, turn
* off DBCR0(IDM) and MSR(DE) .... Torez
*/
- task->thread.debug.dbcr0 &= ~DBCR0_IC;
+ task->thread.debug.dbcr0 &= ~(DBCR0_IC|DBCR0_BT);
/*
* Test to see if any of the DBCR_ACTIVE_EVENTS bits are set.
*/