netdev - [PATCH net-next 0/7] net: Convert to skb_dst_reset and skb_dst

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Message-ID: <20250812155245.507012-1-sdf@fomichev.me>
Date: Tue, 12 Aug 2025 08:52:38 -0700
From: Stanislav Fomichev <sdf@...ichev.me>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	ayush.sawal@...lsio.com,
	andrew+netdev@...n.ch,
	gregkh@...uxfoundation.org,
	horms@...nel.org,
	dsahern@...nel.org,
	pablo@...filter.org,
	kadlec@...filter.org,
	steffen.klassert@...unet.com,
	sdf@...ichev.me,
	mhal@...x.co,
	abhishektamboli9@...il.com,
	linux-kernel@...r.kernel.org,
	linux-staging@...ts.linux.dev,
	netfilter-devel@...r.kernel.org,
	coreteam@...filter.org,
	herbert@...dor.apana.org.au
Subject: [PATCH net-next 0/7] net: Convert to skb_dst_reset and skb_dst_restore

To diagnose and prevent issues similar to [0], emit warning
(CONFIG_DEBUG_NET) from skb_dst_set and skb_dst_set_noref when
overwriting non-null reference-counted entry. Two new helpers
are added to handle special cases where the entry needs to be
reset and restored: skb_dst_reset/skb_dst_restore. The bulk of
the patches in the series converts manual _skb_refst manipulations
to these new helpers.

0: https://lore.kernel.org/netdev/20250723224625.1340224-1-sdf@fomichev.me/T/#u

Stanislav Fomichev (7):
  net: Add skb_dst_reset and skb_dst_restore
  xfrm: Switch to skb_dst_reset to clear dst_entry
  netfilter: Switch to skb_dst_reset to clear dst_entry
  net: Switch to skb_dst_reset/skb_dst_restore for ip_route_input
    callers
  staging: octeon: Convert to skb_dst_drop
  chtls: Convert to skb_dst_reset
  net: Add skb_dst_check_unset

 .../chelsio/inline_crypto/chtls/chtls_cm.c    | 10 ++---
 .../chelsio/inline_crypto/chtls/chtls_cm.h    |  4 +-
 .../chelsio/inline_crypto/chtls/chtls_io.c    |  2 +-
 drivers/staging/octeon/ethernet-tx.c          |  3 +-
 include/linux/skbuff.h                        | 40 +++++++++++++++++++
 net/ipv4/icmp.c                               |  7 ++--
 net/ipv4/ip_options.c                         |  5 +--
 net/ipv4/netfilter.c                          |  5 ++-
 net/ipv6/netfilter.c                          |  5 ++-
 net/xfrm/xfrm_policy.c                        | 10 ++++-
 10 files changed, 71 insertions(+), 20 deletions(-)

-- 
2.50.1