Re: [mmc] alternative TI FM MMC/SD driver for 2.6.21-rc7

From: Sergey Yanovich
Date: Tue Apr 24 2007 - 04:07:14 EST


Hi,
If you add support for let's say [tifm_8xx2] in the future, which
would have port offsets different that [tifm_7xx1], you would also need a
completely new modules for slots (sd, ms, etc).


Does not this constitutes an unbounded speculation?
Only time will tell :)
And then, what would you propose to do with
adapters that have SD support disabled? There are quite a few of those in the wild, as of right
now (SD support is provided by bundled SDHCI on such systems, if at all). Similar argument goes
for other media types as well - many controllers have xD support disabled too (I think you have
one of those - Sony really values its customers). After all, it is not healthy to have dead code
in the kernel.

A typical kernel config is an allmconfig, which has tones of dead
code: just see a 'General setup' part of your distro '.config'.
There are item like 'SMP' selected by default for 686+ CPUs. And
this is far more overhead that a single check of card type on
insert.

To allow customization, boolean module options that disable certain
card type may suffice.

And again, you are doing a great work with the driver.

--
Sergey Yanovich
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