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authorChristian Löhle <CLoehle@hyperstone.com>2022-11-27 20:46:31 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2022-12-07 15:29:13 +0300
commite81bdae440fa7cc7dcbfb4f0fcfafb1f4350bc31 (patch)
tree712525e1dd984e44bdaa0059f451cd4ff9f1604b /drivers/mmc
parentffbace4378dc1aedb02248bbbe5d231754e4df3a (diff)
downloadlinux-e81bdae440fa7cc7dcbfb4f0fcfafb1f4350bc31.tar.xz
mmc: core: Remove non-data R1B ioctl workaround
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 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 the idata->buf_bytes clause and intended to fix R1B non-data transfers, that do not have buf_bytes set, we can remove the workaround altogether. This was dead code, since data transfers doesn't use R1B commands. Signed-off-by: Christian Loehle <cloehle@hyperstone.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/57d4aceb25254e448bd3e575bd99b0c2@hyperstone.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/block.c13
1 files changed, 0 insertions, 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;
}