linux-kernel - RE: [PATCH v3 06/11] rtw88: iterate over vif/sta list non-atomically

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Message-ID: <b915078edbc1427384719c0b77b37fda@realtek.com>
Date:   Fri, 25 Nov 2022 08:50:45 +0000
From:   Ping-Ke Shih <pkshih@...ltek.com>
To:     Sascha Hauer <s.hauer@...gutronix.de>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
CC:     Neo Jou <neojou@...il.com>, Hans Ulli Kroll <linux@...i-kroll.de>,
        Yan-Hsuan Chuang <tony0620emma@...il.com>,
        Kalle Valo <kvalo@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Martin Blumenstingl" <martin.blumenstingl@...glemail.com>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        Johannes Berg <johannes@...solutions.net>,
        Alexander Hochbaum <alex@...udo.com>,
        Da Xue <da@...re.computer>,
        "Bernie Huang" <phhuang@...ltek.com>,
        Viktor Petrenko <g0000ga@...il.com>
Subject: RE: [PATCH v3 06/11] rtw88: iterate over vif/sta list non-atomically



> -----Original Message-----
> From: Sascha Hauer <s.hauer@...gutronix.de>
> Sent: Tuesday, November 22, 2022 10:52 PM
> To: linux-wireless@...r.kernel.org
> Cc: Neo Jou <neojou@...il.com>; Hans Ulli Kroll <linux@...i-kroll.de>; Ping-Ke Shih <pkshih@...ltek.com>;
> Yan-Hsuan Chuang <tony0620emma@...il.com>; Kalle Valo <kvalo@...nel.org>; netdev@...r.kernel.org;
> linux-kernel@...r.kernel.org; Martin Blumenstingl <martin.blumenstingl@...glemail.com>;
> kernel@...gutronix.de; Johannes Berg <johannes@...solutions.net>; Alexander Hochbaum <alex@...udo.com>;
> Da Xue <da@...re.computer>; Bernie Huang <phhuang@...ltek.com>; Viktor Petrenko <g0000ga@...il.com>;
> Sascha Hauer <s.hauer@...gutronix.de>
> Subject: [PATCH v3 06/11] rtw88: iterate over vif/sta list non-atomically
> 
> The driver uses ieee80211_iterate_active_interfaces_atomic()
> and ieee80211_iterate_stations_atomic() in several places and does
> register accesses in the iterators. This doesn't cope with upcoming
> USB support as registers can only be accessed non-atomically.
> 
> Split these into a two stage process: First use the atomic iterator
> functions to collect all active interfaces or stations on a list, then
> iterate over the list non-atomically and call the iterator on each
> entry.
> 
> Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
> Suggested-by: Pkshih <pkshih@...ltek.com>

Please correct my full name. The old setting of my mailer is improper.

Suggested-by: Ping-Ke Shih <pkshih@...ltek.com>
Reviewed-by: Ping-Ke Shih <pkshih@...ltek.com>