netdev - [PATCH ipsec-next v2 0/4] xfrm: Convert __xfrm4_dst_lookup() and its callers to dscp

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Message-ID: <cover.1730387416.git.gnault@redhat.com>
Date: Thu, 31 Oct 2024 16:52:27 +0100
From: Guillaume Nault <gnault@...hat.com>
To: Steffen Klassert <steffen.klassert@...unet.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, Simon Horman <horms@...nel.org>,
	David Ahern <dsahern@...nel.org>, Ido Schimmel <idosch@...dia.com>,
	Eyal Birger <eyal.birger@...il.com>
Subject: [PATCH ipsec-next v2 0/4] xfrm: Convert __xfrm4_dst_lookup() and its
 callers to dscp_t.

This patch series continues to prepare users of ->flowi4_tos to a
future conversion of this field (__u8 to dscp_t). This time, we convert
__xfrm4_dst_lookup() and its call chain.

The objective is to eventually make all users of ->flowi4_tos use a
dscp_t value. Making ->flowi4_tos a dscp_t field will help avoiding
regressions where ECN bits are erroneously interpreted as DSCP bits.

Changes since v1:
  * Rebase on top of ipsec-next. Now we don't convert the ->dst_lookup()
    callback handlers since they they don't have any "tos" parameter
    anymore. Therefore, the original patches 4, 5 and 6 are dropped and
    replaced with the new patch 4, which just converts the "tos" field
    in struct xfrm_dst_lookup_params.

Guillaume Nault (4):
  xfrm: Convert xfrm_get_tos() to dscp_t.
  xfrm: Convert xfrm_bundle_create() to dscp_t.
  xfrm: Convert xfrm_dst_lookup() to dscp_t.
  xfrm: Convert struct xfrm_dst_lookup_params -> tos to dscp_t.

 include/net/xfrm.h      |  3 ++-
 net/ipv4/xfrm4_policy.c |  3 ++-
 net/xfrm/xfrm_policy.c  | 16 ++++++++--------
 3 files changed, 12 insertions(+), 10 deletions(-)

-- 
2.39.2