[RFC PATCH net-next 12/28] net: ethernet: ti: cpsw-proxy-client: add NAPI RX polling function

[Matthew Wilcox]

FYI, Markus can be safely ignored.  His opinions are well-established as
being irrelevant.

On Sun, May 19, 2024 at 03:18:52PM +0200, Markus Elfring wrote:
> …
> > +++ b/drivers/net/ethernet/ti/cpsw-proxy-client.c
> …
> > @@ -988,6 +994,189 @@ static int vport_tx_poll(struct napi_struct *napi_tx, int budget)
> …
> > +static int vport_rx_packets(struct virtual_port *vport, u32 rx_chan_idx)
> > +{
> …
> > +	if (unlikely(!netif_running(skb->dev))) {
> > +		dev_kfree_skb_any(skb);
> > +		return -ENODEV;
> > +	}
> 
> I suggest to move such exception handling to the end of this function implementation
> so that it can be better reused also by another if branch.
> https://wiki.sei.cmu.edu/confluence/display/c/MEM12-C.+Consider+using+a+goto+chain+when+leaving+a+function+on+error+when+using+and+releasing+resources
> 
> How do you think about to increase the application of scope-based resource management
> also for such a software component?
> https://elixir.bootlin.com/linux/v6.9.1/source/include/linux/cleanup.h
> 
> Regards,
> Markus
>