mtd: edit comments on deprecation of ioctl ECCGETLAYOUT

[firefly-linux-kernel-4.4.55.git] / include / linux / mtd / mtd.h

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 03a1e954c586ca3233ce78bfc2e1b6216539e5de..fe8d77ebec13fa5d1dc51f7a6222bf54164e8d02 100644 (file)
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -112,11 +112,11 @@ struct mtd_oob_ops {
 
 #define MTD_MAX_OOBFREE_ENTRIES_LARGE  32
 #define MTD_MAX_ECCPOS_ENTRIES_LARGE   448
-#define MTD_MAX_ECCPOS_ENTRIES_OLD     64      /* Previous maximum */
 /*
- * Correct ECC layout control structure. This replaces old nand_ecclayout
- * (mtd-abi.h) that is exported via ECCGETLAYOUT ioctl. It should be expandable
- *  in the future simply by the above macros.
+ * Internal ECC layout control structure. For historical reasons, there is a
+ * similar, smaller struct nand_ecclayout_user (in mtd-abi.h) that is retained
+ * for export to user-space via the ECCGETLAYOUT ioctl.
+ * nand_ecclayout should be expandable in the future simply by the above macros.
  */
 struct nand_ecclayout {
        __u32 eccbytes;