From: Michal Suchanek Date: Tue, 18 Aug 2015 15:34:07 +0000 (+0000) Subject: mtd: mtdpart: add debug prints to partition parser. X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8e2c992b59fcb5e56e3667f5c30c7d26fbbf14a2;p=linux-beck.git mtd: mtdpart: add debug prints to partition parser. The probe of a mtd device can fail when a partition parser returns error. The failure due to partition parsing can be quite mysterious when multiple partitioning schemes are compiled in and any of them can fail the probe. Add debug prints which show what parsers were tried and what they returned. Signed-off-by: Michal Suchanek Signed-off-by: Brian Norris --- diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 919a936abc42..f5279ea6dc87 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -761,12 +761,17 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, types = default_mtd_part_types; for ( ; ret <= 0 && *types; types++) { + pr_debug("%s: parsing partitions %s\n", master->name, *types); parser = get_partition_parser(*types); if (!parser && !request_module("%s", *types)) parser = get_partition_parser(*types); + pr_debug("%s: got parser %s\n", master->name, + parser ? parser->name : NULL); if (!parser) continue; ret = (*parser->parse_fn)(master, pparts, data); + pr_debug("%s: parser %s: %i\n", + master->name, parser->name, ret); put_partition_parser(parser); if (ret > 0) { printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",