kernel: remove support for kernel 4.19

We use 5.4 on all targets by default, and 4.19 has never been released
in a stable version. There is no reason to keep it.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 97 deletions

diff --git a/target/linux/generic/pending-4.19/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch b/target/linux/generic/pending-4.19/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
deleted file mode 100644
index 79d18d036f..0000000000
--- a/target/linux/generic/pending-4.19/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
+++ /dev/null
@@ -1,97 +0,0 @@
-From: Daniel Golle <daniel@makrotopia.org>
-Subject: ubi: auto-attach mtd device named "ubi" or "data" on boot
-
-Signed-off-by: Daniel Golle <daniel@makrotopia.org>
----
- drivers/mtd/ubi/build.c | 36 ++++++++++++++++++++++++++++++++++++
- 1 file changed, 36 insertions(+)
-
---- a/drivers/mtd/ubi/build.c
-+++ b/drivers/mtd/ubi/build.c
-@@ -1181,6 +1181,73 @@ static struct mtd_info * __init open_mtd
- 	return mtd;
- }
- 
-+/*
-+ * This function tries attaching mtd partitions named either "ubi" or "data"
-+ * during boot.
-+ */
-+static void __init ubi_auto_attach(void)
-+{
-+	int err;
-+	struct mtd_info *mtd;
-+	loff_t offset = 0;
-+	size_t len;
-+	char magic[4];
-+
-+	/* try attaching mtd device named "ubi" or "data" */
-+	mtd = open_mtd_device("ubi");
-+	if (IS_ERR(mtd))
-+		mtd = open_mtd_device("data");
-+
-+	if (IS_ERR(mtd))
-+		return;
-+
-+	/* get the first not bad block */
-+	if (mtd_can_have_bb(mtd))
-+		while (mtd_block_isbad(mtd, offset)) {
-+			offset += mtd->erasesize;
-+
-+			if (offset > mtd->size) {
-+				pr_err("UBI error: Failed to find a non-bad "
-+				       "block on mtd%d\n", mtd->index);
-+				goto cleanup;
-+			}
-+		}
-+
-+	/* check if the read from flash was successful */
-+	err = mtd_read(mtd, offset, 4, &len, (void *) magic);
-+	if ((err && !mtd_is_bitflip(err)) || len != 4) {
-+		pr_err("UBI error: unable to read from mtd%d\n", mtd->index);
-+		goto cleanup;
-+	}
-+
-+	/* check for a valid ubi magic */
-+	if (strncmp(magic, "UBI#", 4)) {
-+		pr_err("UBI error: no valid UBI magic found inside mtd%d\n", mtd->index);
-+		goto cleanup;
-+	}
-+
-+	/* don't auto-add media types where UBI doesn't makes sense */
-+	if (mtd->type != MTD_NANDFLASH &&
-+	    mtd->type != MTD_NORFLASH &&
-+	    mtd->type != MTD_DATAFLASH &&
-+	    mtd->type != MTD_MLCNANDFLASH)
-+		goto cleanup;
-+
-+	mutex_lock(&ubi_devices_mutex);
-+	pr_notice("UBI: auto-attach mtd%d\n", mtd->index);
-+	err = ubi_attach_mtd_dev(mtd, UBI_DEV_NUM_AUTO, 0, 0);
-+	mutex_unlock(&ubi_devices_mutex);
-+	if (err < 0) {
-+		pr_err("UBI error: cannot attach mtd%d\n", mtd->index);
-+		goto cleanup;
-+	}
-+
-+	return;
-+
-+cleanup:
-+	put_mtd_device(mtd);
-+}
-+
- static int __init ubi_init(void)
- {
- 	int err, i, k;
-@@ -1264,6 +1331,12 @@ static int __init ubi_init(void)
- 		}
- 	}
- 
-+	/* auto-attach mtd devices only if built-in to the kernel and no ubi.mtd
-+	 * parameter was given */
-+	if (IS_ENABLED(CONFIG_MTD_ROOTFS_ROOT_DEV) &&
-+	    !ubi_is_module() && !mtd_devs)
-+		ubi_auto_attach();
-+
- 	err = ubiblock_init();
- 	if (err) {
- 		pr_err("UBI error: block: cannot initialize, error %d\n", err);