netdev - Re: [PATCH] wlcore: time sync : add support for 64 bit clock

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Date:	Thu, 23 Jun 2016 13:35:39 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	"Machani, Yaniv" <yanivma@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:	Kalle Valo <kvalo@...eaurora.org>, "Mishol, Guy" <guym@...com>,
	Eliad Peller <eliad@...ery.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH] wlcore: time sync : add support for 64 bit clock


> > Additionally, this looks like it changes the firmware API, so that 
> > older firmware images will no longer work?
> 
> It is backwards compatible, 
> although it changes a API structure, older firmware are using only
> u16 for the field so there is no impact on that.
> 

Oh, ok. I had also thought that the size changed, but missed that you
replaced a u32 with two u16. Thanks for checking :)

johannes