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Re: [PATCH] cfg80211: Add cumulative channel survey dump support.

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On Thu, 2018-05-31 at 08:52 -0700, Ben Greear wrote:
> 
> On 05/31/2018 02:06 AM, vnaralas@xxxxxxxxxxxxxx wrote:
> > On 2018-05-23 15:24, Johannes Berg wrote:
> > > On Tue, 2018-05-22 at 14:45 +0530, Venkateswara Naralasetty wrote:
> > > > This patch provides support to send accumulated survey data to
> > > > user if low level drivers provides non-accumulated survey data.
> > > 
> > > I think the commit log should say what you need this for?
> > > 
> > > It's simultaneously a new flag, and a lot of code, but it's not clear
> > > what the point is?
> > > 
> > > johannes
> > 
> > I will sent next version of patch with updated commit log.
> > 
> > Providing you the earlier discussion of this patch to give quick overview about this patch.
> > https://patchwork.kernel.org/patch/9701459/
> 
> It is simple to fix the firmware, it just has several bugs related to clearing the
> accumulator as well as the 'real' values.  If you can find a QCA firmware engineer
> that will accept patches I can show them how to fix this easily.  I recently
> fixed this in my wave-1 firmware.  I posted patches to the ath10k driver to
> support this a week or so ago, but not sure if Kalle will apply them.

That would be nicer even, but I guess we still have to worry about older
firmware? Perhaps not for survey support? Dunno.

Obviously less code is better, but I can't really say how easy it would
be to get firmware updates rolled out to people who'd need them ...

> And, it is likely that even if you don't use the 'clear' option, you are going to
> get wraps in the firmware and that will just be other harder to debug bugs.

You have to use clear if you don't accumulate completely in fw, no?

johannes



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