backport a patch for Linux kernel-5.10 and 6.6 stable tree

Lin Gui (桂林)
2024-03-16T08:16:41Z

Hi reviewers,

I suggest to backport a commit to Linux kernel-5.10 and 6.6 stable tree.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/mmc/core/mmc.c?h=v6.8&id=e4df56ad0bf3506c5189abb9be83f3bea05a4c4f

author Lin Gui lin.gui@mediatek.com 2023-12-19 07:05:32 +0800
committer Ulf Hansson ulf.hansson@linaro.org 2024-01-02 17:54:05 +0100
commit e4df56ad0bf3506c5189abb9be83f3bea05a4c4f (patch)
tree a5db3a85f44b29dd773c5c65c3340d50b74b6687 /drivers/mmc/core/mmc.c
parent b062136d0d6f46d7ad5c88219cbd75f90cb18e81 (diff)
download linux-e4df56ad0bf3506c5189abb9be83f3bea05a4c4f.tar.gz

mmc: core: Add wp_grp_size sysfs node
The eMMC card can be set into write-protected mode to prevent data from
being accidentally modified or deleted. Wp_grp_size (Write Protect Group
Size) refers to an attribute of the eMMC card, used to manage write
protection and is the CSD register [36:32] of the eMMC device. Wp_grp_size
(Write Protect Group Size) indicates how many eMMC blocks are contained in
each write protection group on the eMMC card.

To allow userspace easy access of the CSD register bits, let's add sysfs
node "wp_grp_size".

Signed-off-by: Lin Gui lin.gui@mediatek.com
Signed-off-by: Bo Ye bo.ye@mediatek.com
Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com
Link: https://lore.kernel.org/r/20231218230532.82427-1-bo.ye@mediatek.com
Signed-off-by: Ulf Hansson ulf.hansson@linaro.org

------------------------------------
Best Regards ！
Guilin
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