target/linux/mediatek/patches-4.4/0052-mtd-nand-add-an-mtd_to_nand-helper.patch

   1 From 17b9724cf84aa32f15334c23d5df34ad3cb885f3 Mon Sep 17 00:00:00 2001
   2 From: Boris BREZILLON <boris.brezillon@free-electrons.com>
   3 Date: Mon, 16 Nov 2015 14:37:35 +0100
   4 Subject: [PATCH 52/81] mtd: nand: add an mtd_to_nand() helper
   5
   6 Some drivers are retrieving the nand_chip pointer using the container_of
   7 macro on a struct wrapping both the nand_chip and the mtd_info struct while
   8 the standard way of retrieving this pointer is through mtd->priv.
   9 Provide an helper to do that.
  10
  11 Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
  12 Signed-off-by: Brian Norris <computersforpeace@gmail.com>
  13 ---
  14  include/linux/mtd/nand.h |    5 +++++
  15  1 file changed, 5 insertions(+)
  16
  17 diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
  18 index 5a9d1d4..a4839b3 100644
  19 --- a/include/linux/mtd/nand.h
  20 +++ b/include/linux/mtd/nand.h
  21 @@ -719,6 +719,11 @@ struct nand_chip {
  22         void *priv;
  23  };
  24
  25 +static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd)
  26 +{
  27 +       return mtd->priv;
  28 +}
  29 +
  30  /*
  31   * NAND Flash Manufacturer ID Codes
  32   */
  33 --
  34 1.7.10.4
  35