From: "Arend van Spriel" <arend@broadcom.com>
To: "Seth Forshee" <seth.forshee@canonical.com>
Cc: linux-wireless@vger.kernel.org,
"John W. Linville" <linville@tuxdriver.com>,
"Johannes Berg" <johannes@sipsolutions.net>,
"Luis R. Rodriguez" <rodrigue@qca.qualcomm.com>,
"Josh Boyer" <jwboyer@redhat.com>,
"Brett Rudley" <brudley@broadcom.com>,
"Roland Vossen" <rvossen@broadcom.com>,
brcm80211-dev-list@broadcom.com
Subject: Re: [PATCH 0/2] Fix lockdep warning in brcmsmac
Date: Thu, 2 Aug 2012 13:01:56 +0200 [thread overview]
Message-ID: <501A5E24.6010302@broadcom.com> (raw)
In-Reply-To: <1343854723-21987-1-git-send-email-seth.forshee@canonical.com>
On 08/01/2012 10:58 PM, Seth Forshee wrote:
> As reported by Josh Boyer, brcmsmac is producing lockdep warnings by
> calling freq_reg_info() without holding cfg80211_lock. Currently
> freq_reg_info() is the only way for a wireless driver to tell whether
> OFDM is allowed on the current channel, but cfg80211_lock is outside the
> scope of the wireless drivers.
>
> Since other regulatory restrictions are communicated in the channel
> definition, it makes sense to do the same for OFDM. These patches add a
> new flag, IEEE80211_CHAN_NO_OFDM, which is set by regulatory to
> indicated OFDM operation is prohibited. brcmsmac is modifified to use
> this flag instead of consuming the regulatory data directly.
>
> Thanks,
> Seth
I will try the patches on a lockdep-enabled kernel.
Gr. AvS
next prev parent reply other threads:[~2012-08-02 11:02 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-01 20:58 [PATCH 0/2] Fix lockdep warning in brcmsmac Seth Forshee
2012-08-01 20:58 ` [PATCH 1/2] cfg80211: add channel flag to prohibit OFDM operation Seth Forshee
2012-08-01 21:20 ` Luis R. Rodriguez
2012-08-02 6:24 ` Johannes Berg
2012-08-02 13:04 ` Seth Forshee
2012-08-02 13:31 ` Johannes Berg
2012-08-01 20:58 ` [PATCH 2/2] brcmsmac: use channel flags to restrict OFDM Seth Forshee
2012-08-02 0:23 ` [PATCH 0/2] Fix lockdep warning in brcmsmac Josh Boyer
2012-08-02 1:53 ` Seth Forshee
2012-08-02 12:02 ` Josh Boyer
2012-08-02 12:51 ` Josh Boyer
2012-08-02 13:42 ` Arend van Spriel
2012-08-02 13:45 ` Josh Boyer
2012-08-02 14:00 ` Arend van Spriel
2012-08-02 14:45 ` Josh Boyer
2012-08-02 14:49 ` Josh Boyer
2012-08-02 13:44 ` Hauke Mehrtens
2012-08-02 13:54 ` Josh Boyer
2012-08-02 11:01 ` Arend van Spriel [this message]
2012-08-02 11:39 ` Arend van Spriel
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