On Thu, Aug 2, 2012 at 12:37 PM, Kyungsik Lee <kyungsik.lee@xxxxxxx> wrote: > It is expected that Extended CSD register(the size of this register > is larger than CID/CSD) will be referenced more frequently as more > fields have been added to Extended CSD and it seems that it is not > a good option to double the memory used. > > This patch is intended to avoid the use of bounce buffer for reading > Extended CSD register in mmc_send_cxd_data(). It will provide a better > performance gain by removing memcpy() overhead for a half KiB and > a redundant bounce buffer allocated repeatedly at the cost of providing > DMA-capable buffer from upper caller(but on-stack buffer is allowed > with no performance gain). > > Signed-off-by: Kyungsik Lee <kyungsik.lee@xxxxxxx> > Signed-off-by: S, Venkatraman <svenkatr@xxxxxx> I don't think my sign off is warranted. I gave just an illustration. You can add my Reviewed-by: Venkatraman S <svenkatr@xxxxxx> Regards, Venkat. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
