From: <gregkh@linuxfoundation.org>
To: dg@emlix.com, gregkh@linuxfoundation.org, ulf.hansson@linaro.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "mmc: block: don't use CMD23 with very old MMC cards" has been added to the 4.8-stable tree
Date: Tue, 25 Oct 2016 20:58:08 +0200 [thread overview]
Message-ID: <1477421888225246@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
mmc: block: don't use CMD23 with very old MMC cards
to the 4.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mmc-block-don-t-use-cmd23-with-very-old-mmc-cards.patch
and it can be found in the queue-4.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 0ed50abb2d8fc81570b53af25621dad560cd49b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Gl=C3=B6ckner?= <dg@emlix.com>
Date: Tue, 30 Aug 2016 14:17:30 +0200
Subject: mmc: block: don't use CMD23 with very old MMC cards
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
From: Daniel Glöckner <dg@emlix.com>
commit 0ed50abb2d8fc81570b53af25621dad560cd49b3 upstream.
CMD23 aka SET_BLOCK_COUNT was introduced with MMC v3.1.
Older versions of the specification allowed to terminate
multi-block transfers only with CMD12.
The patch fixes the following problem:
mmc0: new MMC card at address 0001
mmcblk0: mmc0:0001 SDMB-16 15.3 MiB
mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400900
...
blk_update_request: I/O error, dev mmcblk0, sector 0
Buffer I/O error on dev mmcblk0, logical block 0, async page read
mmcblk0: unable to read partition table
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mmc/card/block.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -2303,7 +2303,8 @@ again:
set_capacity(md->disk, size);
if (mmc_host_cmd23(card->host)) {
- if (mmc_card_mmc(card) ||
+ if ((mmc_card_mmc(card) &&
+ card->csd.mmca_vsn >= CSD_SPEC_VER_3) ||
(mmc_card_sd(card) &&
card->scr.cmds & SD_SCR_CMD23_SUPPORT))
md->flags |= MMC_BLK_CMD23;
Patches currently in stable-queue which might be from dg@emlix.com are
queue-4.8/mmc-block-don-t-use-cmd23-with-very-old-mmc-cards.patch
reply other threads:[~2016-10-25 18:58 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1477421888225246@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=dg@emlix.com \
--cc=stable-commits@vger.kernel.org \
--cc=stable@vger.kernel.org \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.