Re: Linux scsi / usb-mass-storage and HP printer cardreader bug + fix

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Boaz Harrosh wrote:
On Thu, Jan 10 2008 at 12:52 +0200, Hans de Goede <j.w.r.degoede@xxxxxx> wrote:
I'm not sure what the proper solution should be?

I guess the proper solution would be to add a special case to the scsi layer where the read10 / write10 command is issued, and split the request in 2 there when it involves the last sector.

There was another reply in this thread stating that problems reading the last sector with sd / mmc cards happen quite often, and that this is most likely not an isolated case.

Regards,

Hans

Yes, you're right. in ULDs it is a much proper way to do this.

So I guess you'll have to do that special host flag or device
flag, and add a check for it in sd.c. You'll see that sd.c is already doing bufflen truncation at sd_prep_fn(), just add one
more case.


Yes,

That will work nicely, I'll write an updated patch this evening (when I have access to the printer to test again).

Regards,

Hans


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