Patch "Revert "mmc: core: Capture correct oemid-bits for eMMC cards"" has been added to the 4.19-stable tree

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This is a note to let you know that I've just added the patch titled

    Revert "mmc: core: Capture correct oemid-bits for eMMC cards"

to the 4.19-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:
     revert-mmc-core-capture-correct-oemid-bits-for-emmc-cards.patch
and it can be found in the queue-4.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 421b605edb1ce611dee06cf6fd9a1c1f2fd85ad0 Mon Sep 17 00:00:00 2001
From: Dominique Martinet <dominique.martinet@xxxxxxxxxxxxxxxxx>
Date: Fri, 3 Nov 2023 09:42:20 +0900
Subject: Revert "mmc: core: Capture correct oemid-bits for eMMC cards"

From: Dominique Martinet <dominique.martinet@xxxxxxxxxxxxxxxxx>

commit 421b605edb1ce611dee06cf6fd9a1c1f2fd85ad0 upstream.

This reverts commit 84ee19bffc9306128cd0f1c650e89767079efeff.

The commit above made quirks with an OEMID fail to be applied, as they
were checking card->cid.oemid for the full 16 bits defined in MMC_FIXUP
macros but the field would only contain the bottom 8 bits.

eMMC v5.1A might have bogus values in OEMID's higher bits so another fix
will be made, but it has been decided to revert this until that is ready.

Fixes: 84ee19bffc93 ("mmc: core: Capture correct oemid-bits for eMMC cards")
Link: https://lkml.kernel.org/r/ZToJsSLHr8RnuTHz@xxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/CAPDyKFqkKibcXnwjnhc3+W1iJBHLeqQ9BpcZrSwhW2u9K2oUtg@xxxxxxxxxxxxxx
Signed-off-by: Dominique Martinet <dominique.martinet@xxxxxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Cc: Alex Fetters <Alex.Fetters@xxxxxxxxxx>
Reviewed-by: Avri Altman <avri.altman@xxxxxxx>
Link: https://lore.kernel.org/r/20231103004220.1666641-1-asmadeus@xxxxxxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/mmc/core/mmc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -98,7 +98,7 @@ static int mmc_decode_cid(struct mmc_car
 	case 3: /* MMC v3.1 - v3.3 */
 	case 4: /* MMC v4 */
 		card->cid.manfid	= UNSTUFF_BITS(resp, 120, 8);
-		card->cid.oemid		= UNSTUFF_BITS(resp, 104, 8);
+		card->cid.oemid		= UNSTUFF_BITS(resp, 104, 16);
 		card->cid.prod_name[0]	= UNSTUFF_BITS(resp, 96, 8);
 		card->cid.prod_name[1]	= UNSTUFF_BITS(resp, 88, 8);
 		card->cid.prod_name[2]	= UNSTUFF_BITS(resp, 80, 8);


Patches currently in stable-queue which might be from dominique.martinet@xxxxxxxxxxxxxxxxx are

queue-4.19/revert-mmc-core-capture-correct-oemid-bits-for-emmc-cards.patch



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