Re: Sparse improvements & regressions for Linux v5.7-rc1 -> v5.8-rc1

From: Luc Van Oostenryck
Date: Wed Jul 08 2020 - 06:43:58 EST


On Wed, Jul 08, 2020 at 12:59:04PM +0300, Dan Carpenter wrote:
> On Wed, Jul 08, 2020 at 02:06:51AM +0200, Luc Van Oostenryck wrote:
> > I've finally written a silly script to easily compare my tests
> > of Sparse on the kernel. So, it's now easy to share those results.
> >
> > It's a comparison of Sparse's unique warnings between v5.7-rc1 &
> > v5.8-rc1 on x86-64 (defconfig + allyesconfig). The results are
> > quite similar on other architectures.
> >
> > Note that the differences can be caused by changes in the kernel
> > code or in Sparse code.
> >
> > Have fun.
> >
>
> This is quite fun! Could you post the raw errors from the v5.8-rc1
> kernel as well? Probably it's too big for LKML, so it would have to
> be posted to pastebin or something.

Yes, even compressed it's too big.
I've added them in my dev tree on github:
https://github.com/lucvoo/sparse-dev/commits/logs
It's just the last commit in the subdirectory 'Logs'.
I've added the raw and the cooked form.

Have fun,
-- Luc