Re: clang warning: implicit conversion in intel_ddi.c:1481

From: Greg KH
Date: Fri Feb 02 2018 - 08:13:45 EST


On Fri, Feb 02, 2018 at 12:44:38PM +0200, Jani Nikula wrote:
>
> +Knut, Fengguang
>
> On Fri, 02 Feb 2018, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> > - If clang now builds the kernel "cleanly", yes, I want to take
> > warning fixes in the stable tree. And even better yet, if you
> > keep working to ensure the tree is "clean", that would be
> > wonderful.
>
> So we can run sparse using 'make C=1' and friends, or other static
> analysis tools using 'make CHECK=foo C=1', as long as the passed command
> line params work. There was work by Knut to extend this make checker
> stuff [1]. Since mixing different HOSTCC's in a single workdir seems
> like a bad idea, I wonder how hard it would be to make clang work like
> this:
>
> $ make CHECK=clang C=1
>
> Or using Knut's wrapper. Feels like that could increase the use of clang
> for static analysis of patches.

Why not just build with clang itself:
make CC=clang

thanks,

greg k-h