Re: [PATCH v5 1/9] eal: generic 64 bit counter

[Stephen Hemminger <stephen@networkplumber.org>]

On Thu, 16 May 2024 18:22:23 +0000
Wathsala Wathawana Vithanage <wathsala.vithanage@arm.com> wrote:

> Hi Stephen,
> 
> > +__rte_experimental
> > +static inline uint64_t
> > +rte_counter64_fetch(const rte_counter64_t *counter) {
> > +	return *counter;
> > +}  
> 
> What if the address pointed by counter is not aligned and the
> architecture doesn't support atomic (untorn) loads on non-aligned loads? 
> 
> --wathsala

Then the driver is using it incorrectly. For the use case of a set of counters
(even if embedded in another struct), the compiler takes care of this.

Remember this is an internal API, not something that needs to handle user
abuse.