Commit 1aeb6e7c authored Jul 16, 2020 by Damien Le Moal Committed by Mike Snitzer Aug 04, 2020

dm ioctl: Fix compilation warning



In retrieve_status(), when copying the target type name in the
target_type string field of struct dm_target_spec, copy at most
DM_MAX_TYPE_NAME - 1 character to avoid the compilation warning:

warning: ‘__builtin_strncpy’ specified bound 16 equals destination
size [-Wstringop-truncation]

when compiling with W-1.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

parent 04dc5330

drivers/md/dm-ioctl.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1168,7 +1168,7 @@ static void retrieve_status(struct dm_table *table,
		spec->sector_start = ti->begin;
		spec->length = ti->len;
		strncpy(spec->target_type, ti->type->name,
		sizeof(spec->target_type));
		sizeof(spec->target_type) - 1);

		outptr += sizeof(struct dm_target_spec);
		remaining = len - (outptr - outbuf);

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