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From: "Toke Høiland-Jørgensen" <toke@toke.dk>
To: Peter Seiderer <ps.report@gmx.net>, linux-wireless@vger.kernel.org
Cc: Kalle Valo <kvalo@kernel.org>,
	"David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Johannes Berg <johannes@sipsolutions.net>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 1/2] ath9k: fix ath_get_rate_txpower() to respect the rate list end tag
Date: Mon, 04 Apr 2022 20:19:39 +0200	[thread overview]
Message-ID: <87ilroemo4.fsf@toke.dk> (raw)
In-Reply-To: <20220402153014.31332-1-ps.report@gmx.net>

Peter Seiderer <ps.report@gmx.net> writes:

> Stop reading (and copying) from ieee80211_tx_rate to ath_tx_info.rates
> after list end tag (count == 0, idx < 0), prevents copying of garbage
> to card registers.

In the normal case I don't think this patch does anything, since any
invalid rate entries will already be skipped (just one at a time instead
of all at once). So this comment is a bit misleading.

Also, Minstrel could in principle produce a rate sequence where the
indexes are all positive, but there's one in the middle with a count of
0, couldn't it? With this patch, the last entries of such a sequence
would now be skipped...

-Toke

  parent reply	other threads:[~2022-04-04 21:16 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-02 15:30 [PATCH v1 1/2] ath9k: fix ath_get_rate_txpower() to respect the rate list end tag Peter Seiderer
2022-04-02 15:30 ` [PATCH v1 2/2] mac80211: minstrel_ht: fill all requested rates Peter Seiderer
2022-04-04 18:21   ` Toke Høiland-Jørgensen
2022-04-04 21:25     ` Peter Seiderer
2022-04-04 18:19 ` Toke Høiland-Jørgensen [this message]
2022-04-04 20:52   ` [PATCH v1 1/2] ath9k: fix ath_get_rate_txpower() to respect the rate list end tag Peter Seiderer
2022-04-05 19:05     ` Toke Høiland-Jørgensen
2022-04-05 20:27 ` Toke Høiland-Jørgensen
2022-04-12 13:12 ` Kalle Valo

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