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SubjectRe: [RFC] MMC multiwrite capability removal
On Sat, 19 Apr 2008 19:34:12 -0700 (PDT)
Alex Dubov <oakad@yahoo.com> wrote:

>
> tifm_sd relies on controller to report the number of successfully transferred
> blocks. Of course, I cannot be sure to what extent the controller is
> trustworthy. It worked fine until now, though.
>

Sounds like a perfect example of when we have to report 0 upon
failures. I suspect most controllers will be like this as all the specs
I've glanced at lack the detail needed to implement a proper sector
count.

The problems caused by reporting incorrect values here are extremely
rare and difficult to provoke, so normal testing is not likely to
uncover it.

Rgds
--
-- Pierre Ossman

Linux kernel, MMC maintainer http://www.kernel.org
PulseAudio, core developer http://pulseaudio.org
rdesktop, core developer http://www.rdesktop.org


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