On Sun, 27 Nov 2022 at 18:46, Christian Löhle <CLoehle@xxxxxxxxxxxxxx> wrote:
>
> The workaround of pretending R1B non-data transfers are
> data transfers in order for the busy timeout to be respected
> by the host controller driver is removed. It wasn't useful
> in a long time.
>
> Initially the workaround ensured that R1B commands did not
> time out by setting the data timeout to be the command timeout
> in commit cb87ea28ed9e ("mmc: core: Add mmc CMD+ACMD passthrough ioctl").
> This was moved inside of an if clause with idata->buf_bytes being set
> in commit 4d6144de8ba2 ("mmc: core: check for zero length ioctl data").
> Since the workaround is now inside of the idata->buf_bytes clause
> and intended to fix R1B non-data transfers that do not have buf_bytes
> set we can also remove the workaround altogether.
> Since there are no data transfer invoking R1B commands this was dead
> code.
>
> Fixes: cb87ea28ed9e ("mmc: core: Add mmc CMD+ACMD passthrough ioctl")
> Signed-off-by: Christian Loehle <cloehle@xxxxxxxxxxxxxx>
Since the code that we now remove doesn't really break anything, I
don't think we need to use a fixes tag.
So, applied for next by removing the fixes tag, thanks!
Kind regards
Uffe
> ---
> -v2: clarified commit message, no code change
> drivers/mmc/core/block.c | 13 -------------
> 1 file changed, 13 deletions(-)
>
> diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
> index db6d8a099910..20da7ed43e6d 100644
> --- a/drivers/mmc/core/block.c
> +++ b/drivers/mmc/core/block.c
> @@ -514,19 +514,6 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
> if (idata->ic.data_timeout_ns)
> data.timeout_ns = idata->ic.data_timeout_ns;
>
> - if ((cmd.flags & MMC_RSP_R1B) == MMC_RSP_R1B) {
> - /*
> - * Pretend this is a data transfer and rely on the
> - * host driver to compute timeout. When all host
> - * drivers support cmd.cmd_timeout for R1B, this
> - * can be changed to:
> - *
> - * mrq.data = NULL;
> - * cmd.cmd_timeout = idata->ic.cmd_timeout_ms;
> - */
> - data.timeout_ns = idata->ic.cmd_timeout_ms * 1000000;
> - }
> -
> mrq.data = &data;
> }
>
> --
> 2.37.3
>
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