25 lines
927 B
Diff
25 lines
927 B
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Mon, 7 Nov 2022 23:48:24 +0100
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Subject: [PATCH] mtd: support OpenWrt's MTD_ROOTFS_ROOT_DEV
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This allows setting ROOT_DEV to MTD partition named "rootfs".
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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---
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--- a/drivers/mtd/mtdcore.c
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+++ b/drivers/mtd/mtdcore.c
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@@ -761,7 +761,8 @@ int add_mtd_device(struct mtd_info *mtd)
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mutex_unlock(&mtd_table_mutex);
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- if (of_find_property(mtd_get_of_node(mtd), "linux,rootfs", NULL)) {
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+ if (of_find_property(mtd_get_of_node(mtd), "linux,rootfs", NULL) ||
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+ (IS_ENABLED(CONFIG_MTD_ROOTFS_ROOT_DEV) && !strcmp(mtd->name, "rootfs") && ROOT_DEV == 0)) {
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if (IS_BUILTIN(CONFIG_MTD)) {
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pr_info("mtd: setting mtd%d (%s) as root device\n", mtd->index, mtd->name);
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ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, mtd->index);
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