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e130e8d543
linux/drivers/net/ethernet/intel
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Maciej Fijalkowski e130e8d543 ixgbe, xsk: Get rid of redundant 'fallthrough' 
Intel drivers translate actions returned from XDP programs to their own
return codes that have the following mapping:

XDP_REDIRECT -> IXGBE_XDP_{REDIR,CONSUMED}
XDP_TX -> IXGBE_XDP_{TX,CONSUMED}
XDP_DROP -> IXGBE_XDP_CONSUMED
XDP_ABORTED -> IXGBE_XDP_CONSUMED
XDP_PASS -> IXGBE_XDP_PASS

Commit c7dd09fd46 ("ixgbe, xsk: Terminate Rx side of NAPI when XSK Rx
queue gets full") introduced new translation

XDP_REDIRECT -> IXGBE_XDP_EXIT

which is set when XSK RQ gets full and to indicate that driver should
stop further Rx processing. This happens for unsuccessful
xdp_do_redirect() so it is valuable to call trace_xdp_exception() for
this case. In order to avoid IXGBE_XDP_EXIT -> IXGBE_XDP_CONSUMED
overwrite, XDP_DROP case was moved above which in turn made the
'fallthrough' that is in XDP_ABORTED useless as it became the last label
in the switch statement.

Simply drop this leftover.

Fixes: c7dd09fd46 ("ixgbe, xsk: Terminate Rx side of NAPI when XSK Rx queue gets full")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220421132126.471515-2-maciej.fijalkowski@intel.com
2022-04-21 16:31:10 +02:00
..
e1000 e1000: switch to napi_build_skb() 2021-12-28 09:42:25 -08:00
e1000e e1000e: Print PHY register address when MDI read/write fails 2022-03-09 19:53:03 -08:00
fm10k fm10k: Fix syntax errors in comments 2021-12-21 09:17:47 -08:00
i40e i40e, xsk: Diversify return values from xsk_wakeup call paths 2022-04-15 21:10:54 +02:00
iavf Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-17 13:56:58 -07:00
ice ice, xsk: Avoid refilling single Rx descriptors 2022-04-15 21:11:13 +02:00
igb igb: zero hwtstamp by default 2022-03-17 08:32:28 -07:00
igbvf igbvf: Remove useless DMA-32 fallback configuration 2022-01-27 08:58:24 -08:00
igc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-03 11:55:12 -08:00
ixgb ixgb: Remove useless DMA-32 fallback configuration 2022-01-27 08:58:23 -08:00
ixgbe ixgbe, xsk: Get rid of redundant 'fallthrough' 2022-04-21 16:31:10 +02:00
ixgbevf ixgbevf: add disable link state 2022-03-08 07:41:18 -08:00
e100.c ethtool: extend ringparam setting/getting API with rx_buf_len 2021-11-22 12:31:49 +00:00
Kconfig ice: support crosstimestamping on E822 devices if supported 2021-12-21 09:11:40 -08:00
Makefile