[nf-next PATCH v7 0/6] Dynamic hook interface binding part 1

[Phil Sutter <phil@nwl.cc>]

Changes since v6:
- Rebase onto "netfilter: nf_tables: imbalance in flowtable binding"
  patch which is in nf-25-01-09 tag but missing in nf-next
- Drop patch 7 which removed __nft_unregister_flowtable_net_hooks(): The
  function is no longer a duplicate of nft_netdev_unregister_hooks()

This series makes netdev hooks store the interface name spec they were
created for and establishes this stored name as the key identifier. The
previous one which is the hook's 'ops.dev' pointer is thereby freed to
vanish, so a vanishing netdev no longer has to drag the hook along with
it. (Patches 2-4)

Furthermore, it aligns behaviour of netdev-family chains with that of
flowtables in situations of vanishing interfaces. When previously a
chain losing its last interface was torn down and deleted, it may now
remain in place (albeit with no remaining interfaces). (Patch 5)

Patch 6 is a cleanup following patch 5, patch 1 is an independent
code simplification.

Phil Sutter (6):
  netfilter: nf_tables: Flowtable hook's pf value never varies
  netfilter: nf_tables: Store user-defined hook ifname
  netfilter: nf_tables: Use stored ifname in netdev hook dumps
  netfilter: nf_tables: Compare netdev hooks based on stored name
  netfilter: nf_tables: Tolerate chains with no remaining hooks
  netfilter: nf_tables: Simplify chain netdev notifier

 include/net/netfilter/nf_tables.h |  4 +-
 net/netfilter/nf_tables_api.c     | 74 ++++++++-----------------------
 net/netfilter/nft_chain_filter.c  | 48 ++++++--------------
 3 files changed, 33 insertions(+), 93 deletions(-)

-- 
2.47.1