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[nf-next,0/4] netfilter: nf_tables: shrink stack usage a bit more

Message ID 20230414130134.29040-1-fw@strlen.de
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Series netfilter: nf_tables: shrink stack usage a bit more | expand

Message

Florian Westphal April 14, 2023, 1:01 p.m. UTC 
Get rid of a few redundant pointers in the traceinfo structure.
The three removed pointers are used in the expression evaluation loop,
so gcc keeps them in registers.  Passing them to the (inlined) helpers
thus doesn't increase nft_do_chain text size, while stack is reduced
by another 24 bytes on 64bit arches.

These patches apply on top of 'netfilter: nf_tables: shrink jump stack size'.

Florian Westphal (4):
  netfilter: nf_tables: remove unneeded conditional
  netfilter: nf_tables: do not store pktinfo in traceinfo structure
  netfilter: nf_tables: do not store verdict in traceinfo structure
  netfilter: nf_tables: do not store rule in traceinfo structure

 include/net/netfilter/nf_tables.h | 12 +++------
 net/netfilter/nf_tables_core.c    | 42 ++++++++++++++++---------------
 net/netfilter/nf_tables_trace.c   | 38 +++++++++++++++-------------
 3 files changed, 46 insertions(+), 46 deletions(-)