Re: [PATCH] libata drain fifo on stuck DRQ HSM violation

[Alan Cox]

> Drain up to 512 words from host/bridge FIFO on stuck DRQ HSM violation,
> rather than just getting stuck there forever.

Why 512 words ?


>  	ata_altstatus(ap);
> -	ata_chk_status(ap);
> +	ata_drain_fifo(ap, qc);

ap->ops->cleanup();

might be wiser
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