Re: [PATCH] mmc: Fix read-only detection with JMicron 388 chip

From: Chris Ball
Date: Thu Apr 21 2011 - 13:32:05 EST


Hi Takashi,

On Thu, Apr 21 2011, Takashi Iwai wrote:
>> I don't like overwriting ops here -- it's too magical, and now we have
>> to maintain the ops table in two places. A quirk seems justified here,
>> even though we're trying to reduce them in general.
>
> Well, I also used quirk bit in my very first version I worked for
> 2.6.32 kernel. But when I looked at 2.6.39, quirks are almost full --
> only the last one bit is left for bit 31. So I didn't want to finish
> it :)
>
>> Can anyone find a better solution?
>
> One way would be to copy the ops table itself in struct sdhci_host
> instead of keeping the ops table pointer. Then you can overwrite only
> the specific op in each probe_slot callback.

I think I'd rather not touch ops at all and keep the code simple --
if you don't mind, please post a version with quirks, and I'll work
on freeing up a few bits.

Thanks,

- Chris.
--
Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/>
One Laptop Per Child
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/