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mmc: block: correct 4KB alignment check

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In sectors alignment check, brq->data.blocks means sectors of the
previous mqrq since data.blocks for mqrq_cur hasn't been updated yet.
data.blocks will be updated later in mmc_blk_packed_hdr_wrq_prep or
mmc_blk_rw_rq_prep.

static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, ......
        ......
    struct mmc_blk_request *brq = &mq->mqrq_cur->brq;

Signed-off-by: Yuan Juntao <juntao.yuan@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Yuan, Juntao 2016-05-13 07:59:24 +00:00 committed by Ulf Hansson
parent 1473bdd50d
commit e87c85617d
1 changed files with 2 additions and 2 deletions
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4
drivers/mmc/card/block.c
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@ -1976,8 +1976,8 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
* When 4KB native sector is enabled, only 8 blocks
* multiple read or write is allowed
*/
if ((brq->data.blocks & 0x07) &&
(card->ext_csd.data_sector_size == 4096)) {
if (mmc_large_sector(card) &&
!IS_ALIGNED(blk_rq_sectors(rqc), 8)) {
pr_err("%s: Transfer size is not 4KB sector size aligned\n",
req->rq_disk->disk_name);
mq_rq = mq->mqrq_cur;