Hi Ulf, > From: Amitkumar Karwar [mailto:akarwar@xxxxxxxxxxx] > Sent: Thursday, June 16, 2016 2:53 PM > To: linux-wireless@xxxxxxxxxxxxxxx > Cc: Nishant Sarmukadam; Wei-Ning Huang; linux-mmc@xxxxxxxxxxxxxxx; Cathy > Luo; Xinming Hu; Amitkumar Karwar > Subject: [PATCH v4 1/2] mmc: API for accessing host supported maximum > segment count and size > > From: Xinming Hu <huxm@xxxxxxxxxxx> > > sdio device drivers need be able to get the host supported max_segs and > max_seg_size, so that they know the buffer size to allocate while > utilizing the scatter/gather DMA buffer list. > > This patch provides API for this purpose. > > Signed-off-by: Xinming Hu <huxm@xxxxxxxxxxx> > Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx> > --- > v2: v2 was submitted with minor improvement like replacing BUG_ON() with > WARN_ON() > v3: Addressed below review comments from Ulf Hansson > a) In v3, patch has been split into two separate patches. > b) Patch 1/2 introduces an API to fetch max_seg_size and max_segs > c) Replaced WARN_ON() with proper error code when sg_ptr->length is > invalid > d) Instead of duplicating the code in mmc_io_rw_extended(), extra > bool parameter > has been added to this function and used it in new APIs for SG. > v4: Removed WARN_ON() calls in newly added APIs. It's gets called in > probe handler. > Caller already takes care of it(Shawn Lin). > --- > drivers/mmc/core/sdio_io.c | 21 > +++++++++++++++++++++ > .../wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 6 +++--- > include/linux/mmc/sdio_func.h | 3 +++ > 3 files changed, 27 insertions(+), 3 deletions(-) > Please let me know if you have any further review comments for this patch series. Regards, Amitkumar -- 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
