Re: The sheer number of sparse warnings in the kernel

Greg KH
2014-02-26T23:28:20Z

On Wed, Feb 26, 2014 at 03:28:59PM -0800, Greg KH wrote:
> On Wed, Feb 26, 2014 at 02:49:26PM -0800, H. Peter Anvin wrote:
> > The number of sparse errors in the current kernel is staggering, and it
> > makes sparse a lot less valuable of a tool that it otherwise could be.
> > On a build of x86-64 allyesconfig I'm getting 20,676 sparse messages.
> > Out of those, 12,358 come from linux/err.h. Given that the latter
> > basically spams *everything*, I can only conclude that almost noone uses
> > sparse unless they have a filter script.
>
> What errors are you seeing from err.h? I don't see those when building
> different subdirectories with sparse (which is how I normally use it.)
>
> And what version of sparse are you running:
> $ sparse --version
> v0.4.5-rc1-407-g345e8943fc36

Ah, 0.5.0 is now out, maybe you should update to that version?

thanks,

greg k-h