net: ethernet: ti: am65-cpsw: flower: validate control flags

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This driver currently doesn't support any control flags.

Use flow_rule_match_has_control_flags() to check for control flags,
such as can be set through `tc flower ... ip_flags frag`.

In case any control flags are masked, flow_rule_match_has_control_flags()
sets a NL extended error message, and we return -EOPNOTSUPP.

Only compile-tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20240422152643.175592-1-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Asbjørn Sloth Tønnesen 2024-04-22 15:26:42 +00:00 • committed by Jakub Kicinski

parent 3833e4834d

commit 8ae124f189

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drivers/net/ethernet/ti/am65-cpsw-qos.c

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