[PATCH mtd-utils 1/1] misc-utils: mtdpart: document partition of size 0

Brandon Maier brandon.maier at collins.com
Thu Nov 3 07:12:17 PDT 2022

If the partition size passed in to the BLKPG_ADD_PARTITION ioctl is 0,
Linux will make the partition fill to the end of the device[1]. Document
this feature in the help.

[1] https://elixir.bootlin.com/linux/v6.0.6/source/drivers/mtd/mtdpart.c#L254

Signed-off-by: Brandon Maier <brandon.maier at collins.com>
 misc-utils/mtdpart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/misc-utils/mtdpart.c b/misc-utils/mtdpart.c
index ba35d87..c8cd79b 100644
--- a/misc-utils/mtdpart.c
+++ b/misc-utils/mtdpart.c
@@ -37,7 +37,7 @@ static void display_help(int status)
 "  -V, --version Output version information and exit\n"
 "START location and SIZE of the partition are in bytes. They should align on\n"
-"eraseblock size.\n",
+"eraseblock size. If SIZE is 0 the partition will go to end of MTD device.\n",

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