CONFIG_IDEDISK_MULTI_MODE in 2.4.21

CONFIG_IDEDISK_MULTI_MODE in 2.4.21

[Nick Bartos]

I have an ide compact flash device on a couple of machines that reports
dma errors.  In 2.4.20 I was able to set CONFIG_IDEDISK_MULTI_MODE and the
errors went away and all was peachy.

Now the errors are back in 2.4.21, and I noticed that the code that
actually implemented CONFIG_IDEDISK_MULTI_MODE was gone, such that
enabling the option did nothing.

I copied back in the old code from 2.4.20 for the option but I still get
errors, I am guessing that it was removed because something was changed so
that it no longer mattered or something.

So is CONFIG_IDEDISK_MULTI_MODE somehow obsolete or was this an over site?

If CONFIG_IDEDISK_MULTI_MODE is not supposed to matter anymore what should
we do about trying to fix the errors that CONFIG_IDEDISK_MULTI_MODE used
to (set_multimode: status=0x51 { DriveReady SeekComplete Error } & 
set_multimode: error=0x04 { DriveStatusError })?

Re: CONFIG_IDEDISK_MULTI_MODE in 2.4.21

[Alan Cox]

On Llu, 2003-06-16 at 17:39, Nick Bartos wrote:
> I copied back in the old code from 2.4.20 for the option but I still get
> errors, I am guessing that it was removed because something was changed so
> that it no longer mattered or something.

We now just check if the device claims it supports multimode and if so
try and set a mode that is suitable