Re: [PATCH] vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup()

From: Sasha Levin
Date: Sat Apr 13 2019 - 09:38:43 EST


On Sat, Apr 13, 2019 at 02:19:52AM +0000, Michael Kelley wrote:
From: Dexuan Cui <decui@xxxxxxxxxxxxx> Sent: Friday, April 12, 2019 4:35 PM

With CONFIG_DEBUG_PREEMPT=y, the put_cpu_ptr() triggiers an underflow
warning in preempt_count_sub().

Fixes: 37cdd991fac8 ("vmbus: put related per-cpu variable together")
Cc: stable@xxxxxxxxxxxxxxx
Cc: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>
Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx>

Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>

Queued for hyperv-fixes, thanks all.

--
Thanks,
Sasha