[PATCH][v3] sata_fsl: add workaround for data length mismatch on freescale V2 controller

Xie Shaohui-B21989 B21989 at freescale.com
Mon Sep 10 20:45:37 EST 2012


> -----Original Message-----
> From: Sergei Shtylyov [mailto:sshtylyov at mvista.com]
> Sent: Monday, September 10, 2012 6:22 PM
> To: Xie Shaohui-B21989
> Cc: Kumar Gala; jgarzik at pobox.com; linux-ide at vger.kernel.org; linuxppc-
> dev at lists.ozlabs.org; linux-kernel at vger.kernel.org; Bhartiya Anju-B07263
> Subject: Re: [PATCH][v3] sata_fsl: add workaround for data length
> mismatch on freescale V2 controller
> 
> Hello.
> 
> On 10-09-2012 6:53, Xie Shaohui-B21989 wrote:
> 
> >>> +	/* Workaround for data length mismatch errata */
> >>> +	if (unlikely(hstatus & INT_ON_DATA_LENGTH_MISMATCH)) {
> >>> +		for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
> >>> +			qc = ata_qc_from_tag(ap, tag);
> >>> +			if (qc && ata_is_atapi(qc->tf.protocol)) {
> >>> +				u32 hcontrol;
> >>> +#define HCONTROL_CLEAR_ERROR	(1 << 27)
> 
> >> shouldn't we have this #define be part of the enum that the other
> >> HCONTROL_ bits/flags are part of?
> 
> > [S.H] do you mean this?
> 
>     Apparently not. He said *enum*, not #define.

[S.H] OK. Thank you for the clarification.


Best Regards, 
Shaohui Xie



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