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Re: [PATCH] wifi: mac80211_hwsim: Prevent tsf from setting if beacon is disabled

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On Wed, 2025-04-23 at 21:56 +0800, Edward Adam Davis wrote:
> On Wed, 23 Apr 2025 14:53:53 +0200, Johannes Berg wrote:
> > > --- a/drivers/net/wireless/virtual/mac80211_hwsim.c
> > > +++ b/drivers/net/wireless/virtual/mac80211_hwsim.c
> > > @@ -1226,6 +1226,11 @@ static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
> > >  {
> > >  	struct mac80211_hwsim_data *data = hw->priv;
> > >  	u64 now = mac80211_hwsim_get_tsf(hw, vif);
> > > +	struct ieee80211_bss_conf *conf = link_conf_dereference_protected(vif,
> > > +			data->link_data[0].link_id);
> > > +
> > > +	if (conf && !conf->enable_beacon)
> > > +		return;
> > >  	/* MLD not supported here */
> > >  	u32 bcn_int = data->link_data[0].beacon_int;
> > >  	u64 delta = abs(tsf - now);
> > 
> > Please keep kernel coding style - the line break there is awful (but
> > with "conf = ..." on a line by itself it can be just one line), and you
> > shouldn't have code before variable declarations.
> like this?

Looks good I guess, not sure you wanted bcn_int/delta to be calculated
before or after.

> > The comment should probably also move because it's relevant for your new
> > [0] as well.
> I don't understand what you mean.

The "/* MLD not supported here */" comment refers to the [0] - it
explains why the [0] (rather than link id) is OK. So it also applies to
your [0], if you're going to put it before the comment then IMHO it
makes sense to move the comment. With what you did now the comment is
still earlier though, of course.

johannes





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