target/linux/generic/pending-4.9/420-mtd-redboot_space.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Subject: add patch for including unpartitioned space in the rootfs partition for redboot devices (if applicable)
   3
   4 [john@phrozen.org: used by ixp and others]
   5
   6 lede-commit: 394918851f84e4d00fa16eb900e7700e95091f00
   7 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   8 ---
   9  drivers/mtd/redboot.c | 19 +++++++++++++------
  10  1 file changed, 13 insertions(+), 6 deletions(-)
  11
  12 --- a/drivers/mtd/redboot.c
  13 +++ b/drivers/mtd/redboot.c
  14 @@ -266,14 +266,21 @@ static int parse_redboot_partitions(stru
  15  #endif
  16                 names += strlen(names)+1;
  17
  18 -#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
  19                 if(fl->next && fl->img->flash_base + fl->img->size + master->erasesize <= fl->next->img->flash_base) {
  20 -                       i++;
  21 -                       parts[i].offset = parts[i-1].size + parts[i-1].offset;
  22 -                       parts[i].size = fl->next->img->flash_base - parts[i].offset;
  23 -                       parts[i].name = nullname;
  24 -               }
  25 +                       if (!strcmp(parts[i].name, "rootfs")) {
  26 +                               parts[i].size = fl->next->img->flash_base;
  27 +                               parts[i].size &= ~(master->erasesize - 1);
  28 +                               parts[i].size -= parts[i].offset;
  29 +#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
  30 +                               nrparts--;
  31 +                       } else {
  32 +                               i++;
  33 +                               parts[i].offset = parts[i-1].size + parts[i-1].offset;
  34 +                               parts[i].size = fl->next->img->flash_base - parts[i].offset;
  35 +                               parts[i].name = nullname;
  36  #endif
  37 +                       }
  38 +               }
  39                 tmp_fl = fl;
  40                 fl = fl->next;
  41                 kfree(tmp_fl);