linux-kernel - Aw: BUG: Wrong dma queue handling in ixp4 driver

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Message-ID: <trinity-28228d79-2b64-4d9c-89c2-6ce288a8ed49-1468927909503@3capp-gmx-bs21>
Date:	Tue, 19 Jul 2016 13:31:49 +0200
From:	"Lino Sanfilippo" <LinoSanfilippo@....de>
To:	khalasa@...p.pl
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Aw: BUG: Wrong dma queue handling in ixp4 driver


> Hi,
> 
> maybe I miss something, but the ixp4 ethernet driver seems to handle dma pools 
> in a wrong way: In init_queues() it creates a dma pool for descriptors and then
>  only allocates a single descriptor from this pool. The author seems to assume the whole
> table has been allocated already, since after that the complete pool size is zeroed:
> 

Sorry, I indeed missed something. The allocation is correct. A pool is not required, though,
since only one chunk is allocated.

Lino