Re: [PATCH v2 3/7] clocksource: Initialize cs->wd_list

[Peter Zijlstra]

On Wed, May 02, 2018 at 03:37:30PM +0200, Thomas Gleixner wrote:
> On Mon, 30 Apr 2018, Peter Zijlstra wrote:
> 
> > A number of places relies on list_empty(&cs->wd_list), however the
> > list_head does not get initialized. Do so upon registration, such that
> > thereafter it is possible to rely on list_empty() correctly reflecting
> > the list membership status.
> > 
> > Tested-by: Diego Viola <diego.viola@xxxxxxxxx>
> > Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> 
> The next patch is marked for stable, but this one not. Confused

Patch ordering issue mostly. I only marked stable those that fix the
immediate/reported problem.

I noticed this while working on the code, this fixes, afaict, a
pre-existing issue, where the current code relies on
list_empty(&->wd_list), but we don't actually initialize it at all.

Marking it stable is probably fine, but I didn't go to great lengths to
test the individual code paths affected.