[PATCH v2 00/12] mmc: use nonblock mmc requests to minimize latency

[Per Forlin]

On 16 April 2011 17:48, Shawn Guo <shawn.guo at freescale.com> wrote:
> Hi Per,
>
> On Wed, Apr 06, 2011 at 09:07:01PM +0200, Per Forlin wrote:
> [...]
>>
>> Per Forlin (12):
>>   mmc: add none blocking mmc request function
>>   mmc: mmc_test: add debugfs file to list all tests
>>   mmc: mmc_test: add test for none blocking transfers
>>   mmc: add member in mmc queue struct to hold request data
>>   mmc: add a block request prepare function
>>   mmc: move error code in mmc_block_issue_rw_rq to a separate function.
>>   mmc: add a second mmc queue request member
>>   mmc: add handling for two parallel block requests in issue_rw_rq
>>   mmc: test: add random fault injection in core.c
>>   omap_hsmmc: use original sg_len for dma_unmap_sg
>>   omap_hsmmc: add support for pre_req and post_req
>>   mmci: implement pre_req() and post_req()
>>
>>  drivers/mmc/card/block.c      |  493 +++++++++++++++++++++++++++--------------
>>  drivers/mmc/card/mmc_test.c   |  342 ++++++++++++++++++++++++++++-
>>  drivers/mmc/card/queue.c      |  171 +++++++++------
>>  drivers/mmc/card/queue.h      |   31 ++-
>>  drivers/mmc/core/core.c       |  132 ++++++++++-
>>  drivers/mmc/core/debugfs.c    |    5 +
>>  drivers/mmc/host/mmci.c       |  146 +++++++++++-
>>  drivers/mmc/host/mmci.h       |    8 +
>>  drivers/mmc/host/omap_hsmmc.c |   90 +++++++-
>>  include/linux/mmc/core.h      |    9 +-
>>  include/linux/mmc/host.h      |   13 +-
>>  lib/Kconfig.debug             |   11 +
>>  12 files changed, 1172 insertions(+), 279 deletions(-)
>>
> I'm playing the patch set and seeing the following warnings.
>
>  CC      drivers/mmc/card/block.o
> drivers/mmc/card/block.c: In function ‘mmc_blk_issue_rq’:
> drivers/mmc/card/block.c:429:6: warning: ‘status’ may be used uninitialized in this function
>
My bad, it should be:
+ int status = 0;

>  CC      drivers/mmc/core/core.o
> drivers/mmc/core/core.c: In function ‘mmc_request_done’:
> drivers/mmc/core/core.c:163:3: warning: passing argument 2 of ‘mmc_should_fail_request’ from incompatible pointer type
> drivers/mmc/core/core.c:129:20: note: expected ‘struct mmc_data *’ but argument is of type ‘struct mmc_request *’
The function within #ifdef CONFIG_FAIL_MMC_REQUEST is the correct one.
I will update this in the next version.


>
> --
> Regards,
> Shawn
Thanks,
Per