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

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Subject: RE: [PATCH] vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup()
From: Michael Kelley <mikelley@xxxxxxxxxxxxx>
Date: Sat, 13 Apr 2019 02:19:52 +0000
Accept-language: en-US
Cc: "marcelo.cerri@xxxxxxxxxxxxx" <marcelo.cerri@xxxxxxxxxxxxx>, "apw@xxxxxxxxxxxxx" <apw@xxxxxxxxxxxxx>, "olaf@xxxxxxxxx" <olaf@xxxxxxxxx>, vkuznets <vkuznets@xxxxxxxxxx>, "jasowang@xxxxxxxxxx" <jasowang@xxxxxxxxxx>, "stable@xxxxxxxxxxxxxxx" <stable@xxxxxxxxxxxxxxx>
In-reply-to: <20190412233429.29146-1-decui@microsoft.com>
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Thread-index: AQHU8YhPOJo/Dt+Ohk2Vxh0PedeQDaY5W1xw
Thread-topic: [PATCH] vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup()

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>

Follow-Ups:
- Re: [PATCH] vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup()
  - From: Sasha Levin

References:
- [PATCH] vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup()
  - From: Dexuan Cui

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