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authorJohannes Berg <johannes.berg@intel.com>2016-10-24 14:40:04 +0200
committerDavid S. Miller <davem@davemloft.net>2016-10-27 16:16:09 -0400
commit2ae0f17df1cd52aafd1ab0415ea1f1dd56dc0e2a (patch)
tree492385624b87bc97c0ace5f8439606779de71802 /net/wimax
parent489111e5c25b93be80340c3113d71903d7c82136 (diff)
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genetlink: use idr to track families
Since generic netlink family IDs are small integers, allocated densely, IDR is an ideal match for lookups. Replace the existing hand-written hash-table with IDR for allocation and lookup. This lets the families only be written to once, during register, since the list_head can be removed and removal of a family won't cause any writes. It also slightly reduces the code size (by about 1.3k on x86-64). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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