On 16 August 2012 15:11, Markus Armbruster <arm...@redhat.com> wrote: > Peter Maydell <peter.mayd...@linaro.org> writes: >> As suggested in the recent discussion on Markus' patchset to suppress >> unused default drives, this patchset cleans up the omap and pxa2xx >> SD card controllers to behave like the other controllers: >> * the init function looks for the next IF_SD drive >> * if there isn't one, we start up as a controller with no card >> present
> Isn't this an incompatible change? Before, you get an SD card reader > backed by an empty BDS default. You can load/unload cards in the > monitor. After, you get an SD card reader that isn't backed by a BDS by > default. Device models prepared for that can treat it as permanently > empty. Hmm, yes, but most of our SD controllers already act that way. We should probably fix them all... So what's the block layer equivalent of drive_get_next() that always returns us something we can get a bdrv from? -- PMM
