sfc: suppress duplicate nvmem partition types in efx_ef10_mtd_probe

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Use a bitmap to keep track of which partition types we've already seen;
 for duplicates, return -EEXIST from efx_ef10_mtd_probe_partition() and
 thus skip adding that partition.
Duplicate partitions occur because of the A/B backup scheme used by newer
 sfc NICs.  Prior to this patch they cause sysfs_warn_dup errors because
 they have the same name, causing us not to expose any MTDs at all.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Edward Cree 2019-01-22 19:02:17 +00:00 • committed by David S. Miller

parent 12da64300f

commit 3366463513

1 changed files with 21 additions and 8 deletions

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drivers/net/ethernet/sfc/ef10.c

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