Strict aliasing problem with rte_eth_linkstatus_set()

[Ferruh Yigit]

On 4/10/2024 4:27 PM, Stephen Hemminger wrote:
> On Wed, 10 Apr 2024 17:33:53 +0800
> fengchengwen <fengchengwen at huawei.com> wrote:
> 
>> Last： We think there are two ways to solve this problem.
>> 1. Add the compilation option '-fno-strict-aliasing' for hold DPDK project.
>> 2. Use union to avoid such aliasing in rte_eth_linkstatus_set (please see above).
>> PS: We prefer first way.
>>
> 
> Please send a patch to replace alias with union.
> 

+1

I am not sure about ABI implications, as size is not changing I expect
it won't be an issue but may be good to verify with libabigail.

> PS: you can also override aliasing for a few lines of code with either pragma's
> or lots of casting. Both are messy and hard to maintain.