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From: Florian Westphal <fw@strlen.de>
To: <netfilter-devel@vger.kernel.org>
Cc: Florian Westphal <fw@strlen.de>
Subject: [PATCH nf-next 0/3] netfilter: nf_tables: extend retpoline workarounds
Date: Tue,  3 Jan 2023 13:47:14 +0100	[thread overview]
Message-ID: <20230103124717.8178-1-fw@strlen.de> (raw)

- Skip the retpoline if-else cascade if the cpu is recent enough to not
  need the retpoline thunk.

- add objref and 'ct state' to the builtin-call list.
  This means that 'ct state established,related accept' works without
  an indirect call.

Florian Westphal (3):
  netfilter: nf_tables: add static key to skip retpoline workarounds
  netfilter: nf_tables: avoid retpoline overhead for objref calls
  netfilter: nf_tables: avoid retpoline overhead for some ct expression
    calls

 include/net/netfilter/nf_tables_core.h | 16 ++++++++
 net/netfilter/Makefile                 |  6 +++
 net/netfilter/nf_tables_core.c         | 35 +++++++++++++++-
 net/netfilter/nft_ct.c                 | 39 ++++++++++++------
 net/netfilter/nft_ct_fast.c            | 56 ++++++++++++++++++++++++++
 net/netfilter/nft_objref.c             | 12 +++---
 6 files changed, 145 insertions(+), 19 deletions(-)
 create mode 100644 net/netfilter/nft_ct_fast.c

-- 
2.38.2


             reply	other threads:[~2023-01-03 12:47 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-03 12:47 Florian Westphal [this message]
2023-01-03 12:47 ` [PATCH nf-next 1/3] netfilter: nf_tables: add static key to skip retpoline workarounds Florian Westphal
2023-01-03 12:47 ` [PATCH nf-next 2/3] netfilter: nf_tables: avoid retpoline overhead for objref calls Florian Westphal
2023-01-03 12:47 ` [PATCH nf-next 3/3] netfilter: nf_tables: avoid retpoline overhead for some ct expression calls Florian Westphal

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