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| author |   David S. Miller <davem@davemloft.net> | 2019-06-14 15:35:18 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-14 15:35:18 -0700 |
| commit | eea9e3a40dbc15a4b03b447158c2555079875ba5 (patch) | |
| tree | 821f090c2965bc686322532b016f9330556d5acb /drivers/net/ethernet/ti/cpsw.c | |
| parent | Merge tag 'mac80211-next-for-davem-2019-06-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next (diff) | |
| parent | net/mlx5e: use indirect calls wrapper for the rx packet handler (diff) | |
| download | linux-dev-eea9e3a40dbc15a4b03b447158c2555079875ba5.tar.xz linux-dev-eea9e3a40dbc15a4b03b447158c2555079875ba5.zip | |
Merge branch 'net-mlx5-use-indirect-call-wrappers'
Paolo Abeni says:
====================
net/mlx5: use indirect call wrappers
The mlx5_core driver uses several indirect calls in fast-path, some of them
are invoked on each ingress packet, even for the XDP-only traffic.
This series leverage the indirect call wrappers infrastructure the avoid
the expansive RETPOLINE overhead for 2 indirect calls in fast-path.
Each call is addressed on a different patch, plus we need to introduce a couple
of additional helpers to cope with the higher number of possible direct-call
alternatives.
v2 -> v3:
- do not add more INDIRECT_CALL_* macros
- use only the direct calls always available regardless of
the mlx5 build options in the last patch
v1 -> v2:
- update the direct call list and use a macro to define it,
as per Saeed suggestion. An intermediated additional
macro is needed to allow arg list expansion
- patch 2/3 is unchanged, as the generated code looks better this way than
with possible alternative (dropping BP hits)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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