Merge branch 'gro-micro-optimize-dev_gro_receive'

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Alexander Lobakin says:

====================
gro: micro-optimize dev_gro_receive()

This random series addresses some of suboptimal constructions used
in the main GRO entry point.
The main body is gro_list_prepare() simplification and pointer usage
optimization in dev_gro_receive() itself. Being mostly cosmetic, it
gives like +10 Mbps on my setup to both TCP and UDP (both single- and
multi-flow).

Since v1 [0]:
 - drop the replacement of bucket index calculation with
   reciprocal_scale() since it makes absolutely no sense (Eric);
 - improve stack usage in dev_gro_receive() (Eric);
 - reverse the order of patches to avoid changes superseding.

[0] https://lore.kernel.org/netdev/20210312162127.239795-1-alobakin@pm.me
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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David S. Miller 2021-03-14 14:41:09 -07:00

parent f4e6d7cdbf d0eed5c325

commit 3f79eb3c3a

1 changed files with 18 additions and 22 deletions

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net/core/dev.c

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