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089c25f466
Fix ubiblock_create_from_param() ubiblock_create_auto_rootfs section mismatch. Without this, the system upgrade will not work if the kernel was compiled with clang-18. WARNING: modpost: vmlinux: section mismatch in reference: ubiblock_notify+0x190 (section: .text) -> ubiblock_create_auto_rootfs (section: .init.text) ``` [33342.080771] Call trace: [33342.083205] ubiblock_create_auto_rootfs+0x0/0xd0 [33342.087902] blocking_notifier_call_chain+0xb0/0x1a0 [33342.092857] ubi_volume_notify+0xcc/0xdc [33342.096773] ubi_create_volume+0x520/0x684 [33342.100861] ubi_cdev_ioctl+0x2ac/0x834 [33342.104688] __arm64_sys_ioctl+0x14f0/0x15f4 [33342.108947] invoke_syscall+0x44/0xc8 [33342.112601] do_el0_svc+0x78/0xa8 [33342.115907] el0_svc+0x24/0x50 [33342.118951] el0t_64_sync_handler+0x88/0xf0 [33342.123126] el0t_64_sync+0x150/0x154 [33342.126784] Code: ???????? ???????? ???????? ???????? (????????) ``` Signed-off-by: Romanov Danila <pervokur@gmail.com>
70 lines
1.7 KiB
Diff
70 lines
1.7 KiB
Diff
From: Daniel Golle <daniel@makrotopia.org>
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Subject: ubi: auto-create ubiblock device for rootfs
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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---
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drivers/mtd/ubi/block.c | 42 ++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 42 insertions(+)
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--- a/drivers/mtd/ubi/block.c
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+++ b/drivers/mtd/ubi/block.c
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@@ -642,6 +642,47 @@ static void __init ubiblock_create_from_
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}
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}
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+#define UBIFS_NODE_MAGIC 0x06101831
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+static inline int ubi_vol_is_ubifs(struct ubi_volume_desc *desc)
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+{
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+ int ret;
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+ uint32_t magic_of, magic;
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+ ret = ubi_read(desc, 0, (char *)&magic_of, 0, 4);
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+ if (ret)
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+ return 0;
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+ magic = le32_to_cpu(magic_of);
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+ return magic == UBIFS_NODE_MAGIC;
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+}
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+
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+static void ubiblock_create_auto_rootfs(void)
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+{
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+ int ubi_num, ret, is_ubifs;
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+ struct ubi_volume_desc *desc;
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+ struct ubi_volume_info vi;
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+
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+ for (ubi_num = 0; ubi_num < UBI_MAX_DEVICES; ubi_num++) {
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+ desc = ubi_open_volume_nm(ubi_num, "rootfs", UBI_READONLY);
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+ if (IS_ERR(desc))
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+ desc = ubi_open_volume_nm(ubi_num, "fit", UBI_READONLY);;
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+
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+ if (IS_ERR(desc))
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+ continue;
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+
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+ ubi_get_volume_info(desc, &vi);
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+ is_ubifs = ubi_vol_is_ubifs(desc);
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+ ubi_close_volume(desc);
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+ if (is_ubifs)
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+ break;
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+
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+ ret = ubiblock_create(&vi);
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+ if (ret)
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+ pr_err("UBI error: block: can't add '%s' volume, err=%d\n",
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+ vi.name, ret);
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+ /* always break if we get here */
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+ break;
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+ }
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+}
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+
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static void ubiblock_remove_all(void)
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{
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struct ubiblock *next;
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@@ -674,6 +715,10 @@ int __init ubiblock_init(void)
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*/
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ubiblock_create_from_param();
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+ /* auto-attach "rootfs" volume if existing and non-ubifs */
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+ if (IS_ENABLED(CONFIG_MTD_ROOTFS_ROOT_DEV))
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+ ubiblock_create_auto_rootfs();
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+
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/*
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* Block devices are only created upon user requests, so we ignore
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* existing volumes.
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