On Thu, Sep 12, 2019 at 01:13:55PM +0900, Yoshihiro Shimoda wrote:
> The commit 38c38cb73223 ("mmc: queue: use bigger segments if DMA MAP
> layer can merge the segments") always enables the bugger segments"buffer" :) > if DMA MAP layer can merge the segments, but some controllers (SDHCI) > have strictly limitation about the segments size, and then the commit > breaks on the controllers. > > To fix the issue, this patch adds a new flag MMC_CAP2_MERGE_CAPABLE > into the struct mmc_host and the bigger segments usage is disabled > as default. > > Reported-by: Thierry Reding <[email protected]> > Fixes: 38c38cb73223 ("mmc: queue: use bigger segments if DMA MAP layer can > merge the segments") > Signed-off-by: Yoshihiro Shimoda <[email protected]> > Acked-by: Ulf Hansson <[email protected]> For the record: Acked-by: Wolfram Sang <[email protected]>
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