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authorBean Huo <beanhuo@micron.com>2020-12-02 21:23:20 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-12-16 10:56:58 +0100
commit60c1c68fae5ed1fc74707f5820062bb134ccff43 (patch)
tree876010d19e0744e960324413b8faa9b36afcef3d /drivers/mmc
parent974aa59837edcf457d6abce04500fd832e9a32cb (diff)
mmc: block: Fixup condition for CMD13 polling for RPMB requests
commit 6246d7c9d15aaff0bc3863f67900c6a6e6be921b upstream. The CMD13 polling is needed for commands with R1B responses. In commit a0d4c7eb71dd ("mmc: block: Add CMD13 polling for MMC IOCTLS with R1B response"), the intent was to introduce this for requests targeted to the RPMB partition. However, the condition to trigger the polling loop became wrong, leading to unnecessary polling. Let's fix the condition to avoid this. Fixes: a0d4c7eb71dd ("mmc: block: Add CMD13 polling for MMC IOCTLS with R1B response") Cc: stable@vger.kernel.org Reported-by: Zhan Liu <zliua@micron.com> Signed-off-by: Zhan Liu <zliua@micron.com> Signed-off-by: Bean Huo <beanhuo@micron.com> Link: https://lore.kernel.org/r/20201202202320.22165-1-huobean@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/block.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 7f480c6b1981..63e838ec8af8 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -630,7 +630,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
memcpy(&(idata->ic.response), cmd.resp, sizeof(cmd.resp));
- if (idata->rpmb || (cmd.flags & MMC_RSP_R1B)) {
+ if (idata->rpmb || (cmd.flags & MMC_RSP_R1B) == MMC_RSP_R1B) {
/*
* Ensure RPMB/R1B command has completed by polling CMD13
* "Send Status".