From: Florian Mickler <florian-sVu6HhrpSfRAfugRpC6u6w@public.gmane.org>
To: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Florian Mickler <florian-sVu6HhrpSfRAfugRpC6u6w@public.gmane.org>,
Reinette Chatre
<reinette.chatre-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Wey-Yi Guy <wey-yi.w.guy-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Intel Linux Wireless
<ilw-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
"John W. Linville"
<linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>,
Johannes Berg
<johannes.berg-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Zhu Yi <yi.zhu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Ben Cahill <ben.m.cahill-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH] iwl3945: queue the right work if the scan needs to be aborted
Date: Fri, 24 Sep 2010 18:22:01 +0200 [thread overview]
Message-ID: <1285345323-4250-1-git-send-email-florian@mickler.org> (raw)
iwl3945's scan_completed calls into the mac80211 stack which triggers a
warn on if there is no scan outstanding.
This can be avoided by not calling scan_completed but abort_scan in
iwl3945_request_scan in the done: branch of the function which is used
as an error out.
The done: branch seems to be an error-out branch, as, for example, if
iwl_is_ready(priv) returns false the done: branch is executed.
NOTE:
I'm not familiar with the driver at all.
I just quickly scanned as a reaction to
https://bugzilla.kernel.org/show_bug.cgi?id=17722
the users of scan_completed in the iwl3945 driver and noted the odd
discrepancy between the comment above this instance and the comment in
mac80211 scan_completed function.
Signed-off-by: Florian Mickler <florian-sVu6HhrpSfRAfugRpC6u6w@public.gmane.org>
---
drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 2 +-
drivers/net/wireless/iwlwifi/iwl3945-base.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index 9dd9e64..8fd00a6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -1411,7 +1411,7 @@ void iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
clear_bit(STATUS_SCAN_HW, &priv->status);
clear_bit(STATUS_SCANNING, &priv->status);
/* inform mac80211 scan aborted */
- queue_work(priv->workqueue, &priv->scan_completed);
+ queue_work(priv->workqueue, &priv->abort_scan);
}
int iwlagn_manage_ibss_station(struct iwl_priv *priv,
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 59a308b..d31661c 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3018,7 +3018,7 @@ void iwl3945_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
clear_bit(STATUS_SCANNING, &priv->status);
/* inform mac80211 scan aborted */
- queue_work(priv->workqueue, &priv->scan_completed);
+ queue_work(priv->workqueue, &priv->abort_scan);
}
static void iwl3945_bg_restart(struct work_struct *data)
--
1.7.3
--
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next reply other threads:[~2010-09-24 16:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-24 16:22 Florian Mickler [this message]
2010-09-24 19:51 ` [PATCH] iwl3945: queue the right work if the scan needs to be aborted Guy, Wey-Yi
2010-09-27 6:13 ` Florian Mickler
2010-09-27 19:59 ` Guy, Wey-Yi W
2010-09-27 20:11 ` Guy, Wey-Yi
-- strict thread matches above, loose matches on Subject: below --
2010-10-05 6:43 Fw: " Florian Mickler
2010-10-05 8:57 ` Stanislaw Gruszka
2010-10-05 10:12 ` Florian Mickler
[not found] ` <20101005121242.79cdafc2-mGsOIKOveelVRbCss4o9kg@public.gmane.org>
2010-10-05 10:43 ` Stanislaw Gruszka
[not found] ` <20101005104357.GB18833-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-10-05 22:29 ` Florian Mickler
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