linux-kernel - Re: [PATCH V2] Netvsc: Call hv_unmap_memory() in the netvsc_device

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Date:   Wed, 09 Feb 2022 12:00:12 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Tianyu Lan <ltykernel@...il.com>
Cc:     kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        wei.liu@...nel.org, decui@...rosoft.com, davem@...emloft.net,
        kuba@...nel.org, michael.h.kelley@...rosoft.com,
        Tianyu.Lan@...rosoft.com, linux-hyperv@...r.kernel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH V2] Netvsc: Call hv_unmap_memory() in the
 netvsc_device_remove()

Hello:

This patch was applied to netdev/net-next.git (master)
by David S. Miller <davem@...emloft.net>:

On Tue,  8 Feb 2022 09:26:52 -0500 you wrote:
> From: Tianyu Lan <Tianyu.Lan@...rosoft.com>
> 
> netvsc_device_remove() calls vunmap() inside which should not be
> called in the interrupt context. Current code calls hv_unmap_memory()
> in the free_netvsc_device() which is rcu callback and maybe called
> in the interrupt context. This will trigger BUG_ON(in_interrupt())
> in the vunmap(). Fix it via moving hv_unmap_memory() to netvsc_device_
> remove().
> 
> [...]

Here is the summary with links:
  - [V2] Netvsc: Call hv_unmap_memory() in the netvsc_device_remove()
    https://git.kernel.org/netdev/net-next/c/b539324f6fe7

You are awesome, thank you!
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