From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 17 Jun 2009 15:41:49 +0000 (+0200)
Subject: cfg80211: prohibit scanning the same channel more than once
X-Git-Tag: v2.6.32-rc1~703^2~762
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83f5e2cf79390f7ca909b7035dd415230257cc4d;p=pandora-kernel.git

cfg80211: prohibit scanning the same channel more than once

It isn't very useful to scan the same channel more than once
during a given scan, and some hardware (notably iwlwifi) can
only scan a limited number of channels at a time. To prevent
any overflows, simply disallow scanning any channel multiple
times in a given scan command. This is a small change in the
userspace ABI, but the only user, wpa_supplicant, never asks
for a scan with the same frequency listed twice.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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