From: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> Subject: mm/zbud: add kerneldoc fields for zbud_pool make W=1 generates the following warning for zbud_pool mm/zbud.c:105: warning: Function parameter or member 'zpool' not described in 'zbud_pool' mm/zbud.c:105: warning: Function parameter or member 'zpool_ops' not described in 'zbud_pool' Commit 479305fd7172 ("zpool: remove zpool_evict()") removed the zpool_evict helper and added the associated zpool and operations structure in struct zbud_pool but did not add documentation for the fields. Add rudimentary documentation. Link: https://lkml.kernel.org/r/20210520084809.8576-10-mgorman@xxxxxxxxxxxxxxxxxxx Fixes: 479305fd7172 ("zpool: remove zpool_evict()") Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> Reviewed-by: Yang Shi <shy828301@xxxxxxxxx> Acked-by: Vlastimil Babka <vbabka@xxxxxxx> Cc: Dan Streetman <ddstreet@xxxxxxxx> Cc: David Hildenbrand <david@xxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/zbud.c | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/zbud.c~mm-zbud-add-kerneldoc-fields-for-zbud_pool +++ a/mm/zbud.c @@ -92,6 +92,8 @@ struct zbud_ops { * @pages_nr: number of zbud pages in the pool. * @ops: pointer to a structure of user defined operations specified at * pool creation time. + * @zpool: zpool driver + * @zpool_ops: zpool operations structure with an evict callback * * This structure is allocated at pool creation time and maintains metadata * pertaining to a particular zbud pool. _