[dpdk-dev] [PATCH] eal: fix link status issue on ppc_64

[David Christensen]

>> The rte_atomic64_exchange operation for ppc_64 incorrectly linked
>> back to a 32 bit generic operation (__atomic_exchange_4) rather than
>> the 64 bit generic operation (__atomic_exchange_8).  As a result,
>> only the link speed was passed to the application, not the link
>> state, link duplex, on link autoneg properties.
> 
> Good catch.
> The first impact is the link status, but you can imagine applications
> calling this, so I would prefer a title like "eal/ppc: fix 64bits
> exchange operation".
> WDYT ?

Sure, I can do that as a v2.

> 
> rte_atomic64_exchange has no unit test.
> This kind of problem could (should?) have been caught in unit tests.
> Maybe something to add later.
> 

I was surprised too.  I'll look at adding a change to the rte_atomic.c
test application.

Dave