[PATCH] nvmet: prefer struct_size over open coded arithmetic

[Gustavo A. R. Silva]

On Sat, Oct 23, 2021 at 01:28:38PM +0200, Len Baker wrote:
> Hi Gustavo,
> 
> first of all, thanks for this review (and all others reviews as
> well) ;)

No problem. :)

> I think that it is better to use the dynamic allocation since in the
> future the struct size could be dynamic.

Yep; that seems sensible.

> it's not one single element. The "sizeof(struct nvme_ana_group_desc)" is
> multiplied by "ctrl->nanagrpid" and then added "ctrl->max_namespaces * sizeof(__le32)".

You're right. The whole expression got me a bit confused.

> > drivers/nvme/target/admin-cmd.c:267:    return sizeof(struct nvme_ana_group_desc) + count * sizeof(__le32);
> 
> Ok. I forgot it. Apologies.

No apologies. Thanks for your patches. 

> Again, thanks for your time and advises,

Anytime.

Thanks
--
Gustavo