Re: [PATCH 04/22] ide: add ide_deprecated_find_port() helper

From: Sergei Shtylyov
Date: Wed May 21 2008 - 10:30:30 EST


Hello.

Bartlomiej Zolnierkiewicz wrote:

* Factor out code for finding ide_hwifs[] slot from ide_register_hw()
to ide_deprecated_find_port().

* Convert bast-ide, ide-cs and delkin_cb host drivers to use ide_device_add()
instead of ide_register_hw() (while at it drop doing "ide_unregister()" loop
which tries to unregister _all_ IDE interfaces if useable ide_hwifs[] slot
cannot be find).

Er... this patch didn't actually drop that loop (late remark :-).

This patch leaves us with only two ide_register_hw() users:
- drivers/macintosh/mediabay.c
- drivers/ide/ide.c

I wonder whether ide_register_hw() was much good at all since it didn't actually permit to register chips using MMIO: you couldn't pass that info via 'hw' and it set 'hwif->noprobe' to 0, thus giving you no chance to skip probing which wouldn't work anyway; for the same reason it was no good for DMA capable chips since you had not time to install ide_dma_check() and other DMA methods. Am I right here?

MBR, Sergei
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