linux-kernel - Re: [PATCH] crypto: fix nx-842 pSeries driver minimum buffer size

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Date:	Thu, 4 Jun 2015 16:14:21 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Dan Streetman <ddstreet@...e.org>
Cc:	"David S. Miller" <davem@...emloft.net>,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: fix nx-842 pSeries driver minimum buffer size

On Tue, Jun 02, 2015 at 03:22:10PM -0400, Dan Streetman wrote:
> Reduce the nx-842 pSeries driver minimum buffer size from 128 to 8.
> Also replace the single use of IO_BUFFER_ALIGN macro with the standard
> and correct DDE_BUFFER_ALIGN.
> 
> The hw sometimes rejects buffers that contain padding past the end of the
> 8-byte aligned section where it sees the "end" marker.  With the minimum
> buffer size set too high, some highly compressed buffers were being padded
> and the hw was incorrectly rejecting them; this sets the minimum correctly
> so there will be no incorrect padding.
> 
> Signed-off-by: Dan Streetman <ddstreet@...e.org>

Applied.
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Email: Herbert Xu <herbert@...dor.apana.org.au>
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