From: Johannes Berg <johannes@sipsolutions.net>
To: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Cc: linux-wireless@vger.kernel.org
Subject: Re: [PATCH] cfg80211: remove @gfp parameter from cfg80211_rx_mgmt()
Date: Mon, 11 Aug 2014 16:57:05 +0200 [thread overview]
Message-ID: <1407769025.9844.0.camel@jlt4.sipsolutions.net> (raw)
In-Reply-To: <1407752997-12382-1-git-send-email-qca_vkondrat@qca.qualcomm.com>
On Mon, 2014-08-11 at 03:29 -0700, Vladimir Kondratiev wrote:
> In the cfg80211_rx_mgmt(), parameter @gfp was used for the memory allocation.
> But, memory get allocated under spin_lock_bh(), this implies atomic context.
> So, one can't use GFP_KERNEL, only variants with no __GFP_WAIT. Actually, in all
> occurrences GFP_ATOMIC is used (wil6210 use GFP_KERNEL by mistake),
> and it should be this way or warning triggered in the memory allocation code.
>
> Remove @gfp parameter as no actual choice exist, and use hard coded
> GFP_ATOMIC for memory allocation.
Applied, thanks.
johannes
next prev parent reply other threads:[~2014-08-11 14:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-11 10:29 [PATCH] cfg80211: remove @gfp parameter from cfg80211_rx_mgmt() Vladimir Kondratiev
2014-08-11 14:57 ` Johannes Berg [this message]
2014-08-12 8:24 ` Arend van Spriel
2014-08-12 8:31 ` Johannes Berg
2014-08-12 9:07 ` Vladimir Kondratiev
2014-08-12 9:16 ` Arend van Spriel
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