Re: [PATCH net-next 1/3] net: qede: use return from qede_parse_actions() for flow_spec

[Simon Horman]

On Fri, May 03, 2024 at 10:55:01AM +0000, Asbjørn Sloth Tønnesen wrote:
> In qede_flow_spec_to_rule(), when calling
> qede_parse_actions() then the return code
> was only used for a non-zero check, and then
> -EINVAL was returned.
> 
> qede_parse_actions() can currently fail with:
> * -EINVAL
> * -EOPNOTSUPP
> 
> Commit 319a1d19471e ("flow_offload: check for
> basic action hw stats type") broke the implicit
> assumption that it could only fail with -EINVAL,
> by changing it to return -EOPNOTSUPP, when hardware
> stats are requested.
> 
> However AFAICT it's not possible to trigger
> qede_parse_actions() to return -EOPNOTSUPP, when
> called from qede_flow_spec_to_rule(), as hardware
> stats can't be requested by ethtool_rx_flow_rule_create().
> 
> This patch changes qede_flow_spec_to_rule() to use
> the actual return code from qede_parse_actions(),
> so it's no longer assumed that all errors are -EINVAL.
> 
> Only compile tested.
> 
> Signed-off-by: Asbjørn Sloth Tønnesen <ast@xxxxxxxxxxx>

Reviewed-by: Simon Horman <horms@xxxxxxxxxx>