target/linux/generic/backport-4.9/065-v4.13-0002-mtd-partitions-factor-out-code-calling-parser.patch

   1 From 01f9c7240a900d5676a8496496f2974dd36996b1 Mon Sep 17 00:00:00 2001
   2 From: Brian Norris <computersforpeace@gmail.com>
   3 Date: Tue, 23 May 2017 07:30:20 +0200
   4 Subject: [PATCH] mtd: partitions: factor out code calling parser
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 This code is going to be reused for parsers matched using OF so let's
  10 factor it out to make this easier.
  11
  12 Signed-off-by: Brian Norris <computersforpeace@gmail.com>
  13 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  14 Acked-by: Brian Norris <computersforpeace@gmail.com>
  15 ---
  16  drivers/mtd/mtdpart.c | 33 ++++++++++++++++++++++++---------
  17  1 file changed, 24 insertions(+), 9 deletions(-)
  18
  19 --- a/drivers/mtd/mtdpart.c
  20 +++ b/drivers/mtd/mtdpart.c
  21 @@ -807,6 +807,27 @@ static const char * const default_mtd_pa
  22         NULL
  23  };
  24
  25 +static int mtd_part_do_parse(struct mtd_part_parser *parser,
  26 +                            struct mtd_info *master,
  27 +                            struct mtd_partitions *pparts,
  28 +                            struct mtd_part_parser_data *data)
  29 +{
  30 +       int ret;
  31 +
  32 +       ret = (*parser->parse_fn)(master, &pparts->parts, data);
  33 +       pr_debug("%s: parser %s: %i\n", master->name, parser->name, ret);
  34 +       if (ret <= 0)
  35 +               return ret;
  36 +
  37 +       pr_notice("%d %s partitions found on MTD device %s\n", ret,
  38 +                 parser->name, master->name);
  39 +
  40 +       pparts->nr_parts = ret;
  41 +       pparts->parser = parser;
  42 +
  43 +       return ret;
  44 +}
  45 +
  46  /**
  47   * parse_mtd_partitions - parse MTD partitions
  48   * @master: the master partition (describes whole MTD device)
  49 @@ -847,16 +868,10 @@ int parse_mtd_partitions(struct mtd_info
  50                          parser ? parser->name : NULL);
  51                 if (!parser)
  52                         continue;
  53 -               ret = (*parser->parse_fn)(master, &pparts->parts, data);
  54 -               pr_debug("%s: parser %s: %i\n",
  55 -                        master->name, parser->name, ret);
  56 -               if (ret > 0) {
  57 -                       printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",
  58 -                              ret, parser->name, master->name);
  59 -                       pparts->nr_parts = ret;
  60 -                       pparts->parser = parser;
  61 +               ret = mtd_part_do_parse(parser, master, pparts, data);
  62 +               /* Found partitions! */
  63 +               if (ret > 0)
  64                         return 0;
  65 -               }
  66                 mtd_part_parser_put(parser);
  67                 /*
  68                  * Stash the first error we see; only report it if no parser