Re: [PATCH][4.15] gnttab: work around "may be used uninitialized" warning

[Ian Jackson <iwj@xxxxxxxxxxxxxx>]

Julien Grall writes ("Re: [PATCH][4.15] gnttab: work around "may be used 
uninitialized" warning"):
> This is pretty much what we are already doing slowly by initializing 
> values to shut up older compilers. I agree this is more limited, but we 
> also waive off diagnostics from every single compiler in that code 
> rather than just one version.
> 
> Hence why I suggested dropping -Werror for older compiler. This is not 
> ideal but it would give us the ability to keep support for dinausor 
> compiler and not hamper our ability to take advantage of newer compiler 
> diagnostics.

I agree with Julien.  I think we should avoid adding these redundant
initialisers for the reasons he gives.

> The ideal solution is to drop support for older compiler (see my other 
> thread). But this sounds like a daunting task so far on x86...
> 
> Anyway, I will not Nack the patch but will also not Ack it. I will let 
> another maintainer ack this patch.

But this is outside my usual area so I won't nack it either.

Ian.