Re: [PATCH net v1 1/1] ethtool: fix clearing of WoL flags

[Florian Fainelli]

On 10/19/23 09:45, Michal Kubecek wrote:
> On Thu, Oct 19, 2023 at 09:20:31AM -0700, Florian Fainelli wrote:
> > On 10/19/23 06:27, Köry Maincent wrote:
> > > On Thu, 19 Oct 2023 12:50:48 +0200
> > > Michal Kubecek <mkubecek@xxxxxxx> wrote:
> > >
> > > > On Thu, Oct 19, 2023 at 12:21:14PM +0200, Köry Maincent wrote:
> > > > > On Thu, 19 Oct 2023 11:51:40 +0200 > Michal Kubecek <mkubecek@xxxxxxx>
> > > > > wrote:
> > > > > > The issue was indeed introduced by commit 108a36d07c01 ("ethtool: Fix
> > > > > > mod state of verbose no_mask bitset"). The problem is that a "no mask"
> > > > > > verbose bitset only contains bit attributes for bits to be set. This
> > > > > > worked correctly before this commit because we were always updating
> > > > > > a zero bitmap (since commit 6699170376ab ("ethtool: fix application of
> > > > > > verbose no_mask bitset"), that is) so that the rest was left zero
> > > > > > naturally. But now the 1->0 change (old_val is true, bit not present in
> > > > > > netlink nest) no longer works.
> > > > >
> > > > > Doh I had not seen this issue! Thanks you for reporting it.
> > > > > I will send the revert then and will update the fix for next merge-window.
> > > >
> > > > Something like the diff below (against current mainline) might do the
> > > > trick but it's just an idea, not even build tested.
> > >
> > > Seems a good idea without adding too much complexity to the code.
> > > Will try that and send it in next merge window.
> >
> > Not sure what you mean by next merge window, we need a fix for right now, or
> > we need to revert 6699170376ab ("ethtool: fix application of verbose no_mask
> > bitset").
>
> Not that one, that's an old commit that was correct from functional
> point of view (the only problem was that it sometimes triggered
> a notification even when the value was not changed but that also happens
> in other places).
>
> A revert of commit 108a36d07c01 ("ethtool: Fix mod state of verbose
> no_mask bitset") is already in net tree as commit 524515020f25 ("Revert
> "ethtool: Fix mod state of verbose no_mask bitset"").

Got it, thanks!
--
Florian