[PATCH v1] net/cpfl: add checks for received ctlq messages

[Bruce Richardson]

On Thu, Jul 04, 2024 at 05:18:35AM +0000, Soumyadeep Hore wrote:
> cpfl_process_rx_ctlq_msg() is used to check error status
> returned for specific opcodes.
> 
> Previously error codes were only -ve for
> cpfl_receive_ctlq_msg() but now there are +ve error codes.
> Hence code changes are made accordingly.
> 

Is this a bugfix? If so, please reword title to start with "fix" and put in
a fixes tag in the commit body here. If it fixes a commit not yet pulled to
main I can merge the fix into the original commit in the net-intel tree.

Also, I wonder if this patch should be split into two commits - one adding
the new function for printing error messages, and the second for changing
the return value check from < 0 to != 0. The two don't seem to be directly
related to each other, so should be separate, I think.

> Signed-off-by: Soumyadeep Hore <soumyadeep.hore at intel.com>
> ---
>  drivers/net/cpfl/cpfl_flow_engine_fxp.c |  2 +-
>  drivers/net/cpfl/cpfl_fxp_rule.c        | 52 +++++++++++++++++++++++++
>  2 files changed, 53 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/cpfl/cpfl_flow_engine_fxp.c b/drivers/net/cpfl/cpfl_flow_engine_fxp.c
> index 39a281fa61..983b4188e4 100644
> --- a/drivers/net/cpfl/cpfl_flow_engine_fxp.c
> +++ b/drivers/net/cpfl/cpfl_flow_engine_fxp.c
> @@ -95,7 +95,7 @@ cpfl_fxp_create(struct rte_eth_dev *dev,
>  
>  	ret = cpfl_rule_process(itf, ad->ctlqp[cpq_id], ad->ctlqp[cpq_id + 1],
>  				rim->rules, rim->rule_num, true);
> -	if (ret < 0) {
> +	if (ret) {

Style nit - put in explicit "!= 0" for integer comparisons.

>  		rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
>  				   "cpfl filter create flow fail");
>  		rte_free(rim);

<snip>

Thanks,
/Bruce