linux-kernel - Re: [PATCH] mac80211: ath9k: Use RCU protection calling ieee80211_get_tx

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Message-ID: <20130612075634.GA1649@gmail.com>
Date:	Wed, 12 Jun 2013 02:56:34 -0500
From:	Calvin Owens <jcalvinowens@...il.com>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	"Luis R. Rodriguez" <mcgrof@....qualcomm.com>,
	"John W. Linville" <linville@...driver.com>,
	Felix Fietkau <nbd@...nwrt.org>,
	linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
	ath9k-devel@...ts.ath9k.org, netdev@...r.kernel.org
Subject: Re: [PATCH] mac80211: ath9k: Use RCU protection calling
 ieee80211_get_tx_rates

On Tuesday 06/11 at 21:55 +0200, Johannes Berg wrote:
> Now the subject should no longer say "mac80211:" :)
> 
> However... given that ieee80211_get_tx_rates() actually *copies* the
> rates into the parameter, I guess it should do the rcu_read_lock()
> internally. I guess I wasn't paying attention previously. Felix?

I thought about that, but it seemed too simple, so I assumed I was
missing something. ;)

I'll send a patch per above. That makes the header file update
unnecessary too.

> johannes
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