netdev - Re: [PATCH net] ibmvnic: Unmap DMA address of TX descriptor buffers after use

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Message-Id: <20190818.135808.1309228891811712533.davem@davemloft.net>
Date:   Sun, 18 Aug 2019 13:58:08 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     tlfalcon@...ux.ibm.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net] ibmvnic: Unmap DMA address of TX descriptor
 buffers after use

From: Thomas Falcon <tlfalcon@...ux.ibm.com>
Date: Wed, 14 Aug 2019 14:57:05 -0500

> There's no need to wait until a completion is received to unmap
> TX descriptor buffers that have been passed to the hypervisor.
> Instead unmap it when the hypervisor call has completed. This patch
> avoids the possibility that a buffer will not be unmapped because
> a TX completion is lost or mishandled.
> 
> Reported-by: Abdul Haleem <abdhalee@...ux.vnet.ibm.com>
> Tested-by: Devesh K. Singh <devesh_singh@...ibm.com>
> Signed-off-by: Thomas Falcon <tlfalcon@...ux.ibm.com>

Applied.