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generic/3.10: reduce number of ifdefs in the rootfs split code 

Use the config_enabled() macro where it is possible.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 37980
owl
Gabor Juhos 2013-09-14 10:19:09 +00:00
parent 02e858d88c
commit ac28225e24
1 changed files with 14 additions and 14 deletions
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24
target/linux/generic/patches-3.10/400-mtd-add-rootfs-split-support.patch
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@ -127,7 +127,6 @@
+ return len;
+}
+
+#ifdef CONFIG_MTD_ROOTFS_SPLIT
+#define ROOTFS_SPLIT_NAME "rootfs_data"
+#define ROOTFS_REMOVED_NAME "<removed>"
+
@ -191,11 +190,15 @@
+ __mtd_add_partition(master, ROOTFS_SPLIT_NAME, split_offset,
+ split_size, false);
+}
+#endif /* CONFIG_MTD_ROOTFS_SPLIT */
+
+#ifdef CONFIG_MTD_UIMAGE_SPLIT
+#define UBOOT_MAGIC 0x27051956
+
+#ifdef CONFIG_MTD_UIMAGE_SPLIT_NAME
+#define UIMAGE_SPLIT_NAME CONFIG_MTD_UIMAGE_SPLIT_NAME
+#else
+#define UIMAGE_SPLIT_NAME "unused"
+#endif
+
+static void split_uimage(struct mtd_info *master, struct mtd_part *part)
+{
+ struct {
@ -205,7 +208,7 @@
+ } hdr;
+ size_t len;
+
+ if (strcmp(part->mtd.name, CONFIG_MTD_UIMAGE_SPLIT_NAME) != 0)
+ if (strcmp(part->mtd.name, UIMAGE_SPLIT_NAME) != 0)
+ return;
+
+ if (mtd_read(master, part->offset, sizeof(hdr), &len, (void *) &hdr))
@ -222,7 +225,6 @@
+ __mtd_add_partition(master, "rootfs", part->offset + len,
+ part->mtd.size - len, false);
+}
+#endif
+
+void __weak arch_split_mtd_part(struct mtd_info *master, const char *name,
+ int offset, int size)
@ -240,21 +242,19 @@
+ if (!strcmp(part->mtd.name, "rootfs")) {
+ rootfs_found = 1;
+
+#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
+ if (ROOT_DEV == 0) {
+ if (config_enabled(CONFIG_MTD_ROOTFS_ROOT_DEV) &&
+ ROOT_DEV == 0) {
+ printk(KERN_NOTICE "mtd: partition \"rootfs\" "
+ "set to be root filesystem\n");
+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, part->mtd.index);
+ }
+#endif
+#ifdef CONFIG_MTD_ROOTFS_SPLIT
+
+ if (config_enabled(CONFIG_MTD_ROOTFS_SPLIT))
+ split_rootfs_data(master, part);
+#endif
+ }
+
+#ifdef CONFIG_MTD_UIMAGE_SPLIT
+ if (config_enabled(CONFIG_MTD_UIMAGE_SPLIT))
+ split_uimage(master, part);
+#endif
+
+ arch_split_mtd_part(master, part->mtd.name, part->offset,
+ part->mtd.size);