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Subject[PATCH 12/14] sparc64: rtrap: Remove unneeded need_resched() loop
Date
Since the enabling and disabling of IRQs within preempt_schedule_irq()
is contained in a need_resched() loop, we don't need the outer arch
code loop.

We seem to be looping back somewhere much higher than the usual
preempt/need_resched checks, but AFAICT we would just branch to
'rtrap_no_irq_enable' and then back to 'to_kernel', which is
a need_resched() loop with a few extra steps.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
---
arch/sparc/kernel/rtrap_64.S | 1 -
1 file changed, 1 deletion(-)

diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index 29aa34f11720..57fb75686957 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -322,7 +322,6 @@ to_kernel:
nop
call preempt_schedule_irq
nop
- ba,pt %xcc, rtrap
#endif
kern_fpucheck: ldub [%g6 + TI_FPDEPTH], %l5
brz,pt %l5, rt_continue
--
2.20.1
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