git.openwrt.org Git - openwrt/staging/linusw.git/blob

   1 From 840b2f8dd2d0579e517140e1f9bbc482eaf4ed07 Mon Sep 17 00:00:00 2001
   2 From: Miquel Raynal <miquel.raynal@bootlin.com>
   3 Date: Thu, 16 Dec 2021 12:16:39 +0100
   4 Subject: [PATCH 02/15] mtd: nand: Add a new helper to retrieve the ECC context
   5
   6 Introduce nand_to_ecc_ctx() which will allow to easily jump to the
   7 private pointer of an ECC context given a NAND device. This is very
   8 handy, from the prepare or finish ECC hook, to get the internal context
   9 out of the NAND device object.
  10
  11 Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
  12 Link: https://lore.kernel.org/linux-mtd/20211216111654.238086-14-miquel.raynal@bootlin.com
  13 (cherry picked from commit cda32a618debd3fad8e42757b198719ae180f8f4)
  14 ---
  15  include/linux/mtd/nand.h | 5 +++++
  16  1 file changed, 5 insertions(+)
  17
  18 diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
  19 index 4ddd20fe9c9e..b617efa0a881 100644
  20 --- a/include/linux/mtd/nand.h
  21 +++ b/include/linux/mtd/nand.h
  22 @@ -990,6 +990,11 @@ int nanddev_markbad(struct nand_device *nand, const struct nand_pos *pos);
  23  int nanddev_ecc_engine_init(struct nand_device *nand);
  24  void nanddev_ecc_engine_cleanup(struct nand_device *nand);
  25
  26 +static inline void *nand_to_ecc_ctx(struct nand_device *nand)
  27 +{
  28 +       return nand->ecc.ctx.priv;
  29 +}
  30 +
  31  /* BBT related functions */
  32  enum nand_bbt_block_status {
  33         NAND_BBT_BLOCK_STATUS_UNKNOWN,
  34 --
  35 2.35.1
  36