RE: [PATCH net-next 1/3] net: enetc: change the statistics of ring to unsigned long type

[Wei Fang]

> >  struct enetc_ring_stats {
> > -	unsigned int packets;
> > -	unsigned int bytes;
> > -	unsigned int rx_alloc_errs;
> > -	unsigned int xdp_drops;
> > -	unsigned int xdp_tx;
> > -	unsigned int xdp_tx_drops;
> > -	unsigned int xdp_redirect;
> > -	unsigned int xdp_redirect_failures;
> > -	unsigned int recycles;
> > -	unsigned int recycle_failures;
> > -	unsigned int win_drop;
> > +	unsigned long packets;
> > +	unsigned long bytes;
> > +	unsigned long rx_alloc_errs;
> > +	unsigned long xdp_drops;
> > +	unsigned long xdp_tx;
> > +	unsigned long xdp_tx_drops;
> > +	unsigned long xdp_redirect;
> > +	unsigned long xdp_redirect_failures;
> > +	unsigned long recycles;
> > +	unsigned long recycle_failures;
> > +	unsigned long win_drop;
> >  };
> 
> Hi Wei fang,
> 
> If the desire is for an unsigned 64 bit integer, then I think either u64 or unsigned
> long long would be good choices.
> 
> unsigned long may be 64bit or 32bit depending on the platform.

The use of unsigned long is to keep it consistent with the statistical
value type in struct net_device_stats. Because some statistics in
net_device_stats come from enetc_ring_stats.

#define NET_DEV_STAT(FIELD)			\
	union {					\
		unsigned long FIELD;		\
		atomic_long_t __##FIELD;	\
	}