On 1 September 2011 21:05, Venkatraman S <svenkatr@xxxxxx> wrote: > Reuse omap_hsmmc_dma_cleanup even for normal dma teardown in > omap_hsmmc_dma_cb. Consolidate multiple points of dma unmap into a > single location in post_req function, to prevent double unmapping. It's optional to use pre_req() and post_req(). The SDIO framework doesn't utilise these hooks. For instance this wont work together with SDIO-wlan on the pandaboard. If pre_req() has been issued it's fine to defer dma_unmap() until post_req(). If pre_req() is not called the driver should call dma_unmap() directly. Regards, Per -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html