From: Brian King <brking@linux.vnet.ibm.com>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: brking@us.ibm.com, JBottomley@parallels.com,
linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org,
tj@kernel.org
Subject: Re: [PATCH] ipr: qc_fill_rtf() method should not store alternate status register
Date: Fri, 31 May 2013 07:46:51 -0500 [thread overview]
Message-ID: <51A89BBB.1030705@linux.vnet.ibm.com> (raw)
In-Reply-To: <201305212324.22822.sergei.shtylyov@cogentembedded.com>
On 05/21/2013 02:24 PM, Sergei Shtylyov wrote:
> The 'ctl' field of the 'struct ata_taskfile' is not really dual purpose, i.e.
> it is not intended for storing the alternate status register (which is mapped
> at the same address in the legacy IDE controllers) in the qc_fill_rtf() method.
> No other 'libata' driver except 'drivers/scsi/ipr.c' stores the alternate status
> register's value in the 'ctl' field of 'qc->result_tf', hence this driver should
> not do this as well...
>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
--
Brian King
Power Linux I/O
IBM Linux Technology Center
next prev parent reply other threads:[~2013-05-31 12:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-21 19:24 [PATCH] ipr: qc_fill_rtf() method should not store alternate status register Sergei Shtylyov
2013-05-31 12:46 ` Brian King [this message]
2013-05-31 22:37 ` Sergei Shtylyov
2013-06-02 8:15 ` Tejun Heo
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