openwrt/target/linux/generic/pending-6.1/450-10-block-add-new-genhd-flag-GENHD_FL_NVMEM.patch
Daniel Golle fc153aa8d9 kernel: import pending patches adding support for NVMEM on UBI and MMC
Similar to supporting nvmem-layouts on MTD devices, also allow referencing
UBI and MMC devices in DT.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2024-02-15 19:06:36 +00:00

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From 65f3ff9672ccd5ee78937047e7a2fc696eee1c8f Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 13 Jul 2023 04:07:16 +0100
Subject: [PATCH 10/15] block: add new genhd flag GENHD_FL_NVMEM
Add new flag to destinguish block devices which may act as an NVMEM
provider.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
include/linux/blkdev.h | 2 ++
1 file changed, 2 insertions(+)
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -87,11 +87,13 @@ struct partition_meta_info {
* ``GENHD_FL_NO_PART``: partition support is disabled. The kernel will not
* scan for partitions from add_disk, and users can't add partitions manually.
*
+ * ``GENHD_FL_NVMEM``: the block device should be considered as NVMEM provider.
*/
enum {
GENHD_FL_REMOVABLE = 1 << 0,
GENHD_FL_HIDDEN = 1 << 1,
GENHD_FL_NO_PART = 1 << 2,
+ GENHD_FL_NVMEM = 1 << 3,
};
enum {