From: Pavel Roskin <proski@gnu.org>
To: linux-wireless@vger.kernel.org
Subject: [PATCH 16/35] Don't disable and enable tasklets, it doesn't work as expected
Date: Sat, 01 Sep 2007 00:35:46 -0400 [thread overview]
Message-ID: <20070901043546.2498.56818.stgit@dv.roinet.com> (raw)
In-Reply-To: <20070901043233.2498.95850.stgit@dv.roinet.com>
Bringing the interface down causes high CPU utilization. Correct fix
should probably disable rx URB, not only the rx tasklet.
Signed-off-by: Pavel Roskin <proski@gnu.org>
---
drivers/net/wireless/at76_usb.c | 5 -----
1 files changed, 0 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/at76_usb.c b/drivers/net/wireless/at76_usb.c
index 5577606..218641e 100644
--- a/drivers/net/wireless/at76_usb.c
+++ b/drivers/net/wireless/at76_usb.c
@@ -3445,7 +3445,6 @@ static int at76_open(struct net_device *netdev)
goto error;
}
- tasklet_enable(&priv->rx_tasklet);
schedule_delayed_work(&priv->dwork_restart, 0);
at76_dbg(DBG_PROC_ENTRY, "%s(): end", __func__);
@@ -3463,7 +3462,6 @@ static int at76_stop(struct net_device *netdev)
if (mutex_lock_interruptible(&priv->mtx))
return -EINTR;
- tasklet_disable(&priv->rx_tasklet);
at76_quiesce(priv);
if (!priv->device_unplugged) {
@@ -5375,7 +5373,6 @@ static struct at76_priv *at76_alloc_new_device(struct usb_device *udev)
priv->rx_tasklet.func = at76_rx_tasklet;
priv->rx_tasklet.data = 0;
- tasklet_disable(&priv->rx_tasklet);
priv->pm_mode = AT76_PM_OFF;
priv->pm_period = 0;
@@ -5535,8 +5532,6 @@ static void at76_delete_device(struct at76_priv *priv)
/* The device is gone, don't bother turning it off */
priv->device_unplugged = 1;
- tasklet_kill(&priv->rx_tasklet);
-
if (priv->netdev_registered)
unregister_netdev(priv->netdev);
next prev parent reply other threads:[~2007-09-01 4:35 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-01 4:34 [PATCH 00/35] Update at76_usb to the start of mac80211 port Pavel Roskin
2007-09-01 4:34 ` [PATCH 01/35] Protect at76_get_op_mode() and at76_get_mib() against short reads Pavel Roskin
2007-09-01 4:34 ` [PATCH 02/35] Use existing macros to find bulk in and bulk out endpoints Pavel Roskin
2007-09-01 4:34 ` [PATCH 03/35] Rewrite at76_alloc_urbs() in a more linear fashion Pavel Roskin
2007-09-01 4:34 ` [PATCH 04/35] Avoid overuse of NULL Pavel Roskin
2007-09-01 4:34 ` [PATCH 05/35] Add myself to the author list Pavel Roskin
2007-09-01 4:34 ` [PATCH 06/35] Move (de)initialization functions closer to the end of file Pavel Roskin
2007-09-01 4:34 ` [PATCH 07/35] Don't use shift on numeric constants in usb_control_msg() arguments Pavel Roskin
2007-09-01 4:35 ` [PATCH 08/35] Merge at76_download_external_fw() into at76_load_external_fw() Pavel Roskin
2007-09-01 4:35 ` [PATCH 09/35] Simplify at76_usbdfu_download() Pavel Roskin
2007-09-01 4:35 ` [PATCH 10/35] Add minimal support to 505AMX Pavel Roskin
2007-09-01 4:35 ` [PATCH 11/35] Simplify logic in at76_get_reg_domain() Pavel Roskin
2007-09-01 4:35 ` [PATCH 12/35] Fix hex2str() and mac2str() to avoid buffer overlap Pavel Roskin
2007-09-01 4:35 ` [PATCH 13/35] Rename some long functions and fields Pavel Roskin
2007-09-01 4:35 ` [PATCH 14/35] Fix incorrect queue management in at76_tx_mgmt() Pavel Roskin
2007-09-01 4:35 ` [PATCH 15/35] Introduce at76_quiesce(), use it to stop network activity Pavel Roskin
2007-09-01 4:35 ` Pavel Roskin [this message]
2007-09-01 4:35 ` [PATCH 17/35] Start beacon timeout task when connected Pavel Roskin
2007-09-01 4:35 ` [PATCH 18/35] Only cancel correct timeouts for Auth and Assoc replies Pavel Roskin
2007-09-01 9:17 ` Johannes Berg
2007-09-01 10:54 ` Pavel Roskin
2007-09-01 11:04 ` Johannes Berg
2007-09-01 13:16 ` John W. Linville
2007-09-01 20:09 ` Pavel Roskin
2007-09-01 4:36 ` [PATCH 19/35] Improve output of the regdomain id Pavel Roskin
2007-09-01 4:36 ` [PATCH 20/35] Protect at76_iw_handler_set_scan() with mutex Pavel Roskin
2007-09-01 4:36 ` [PATCH 21/35] Eliminate vendor IDs Pavel Roskin
2007-09-01 4:36 ` [PATCH 22/35] Only retry resubmitting rx_urb once Pavel Roskin
2007-09-01 4:36 ` [PATCH 23/35] Simplify at76_get_mib_mdomain() Pavel Roskin
2007-09-01 4:36 ` [PATCH 24/35] Do implicit scanning only with current ESSID Pavel Roskin
2007-09-01 4:36 ` [PATCH 25/35] Don't dump mib_mdomain while scanning, it's done on device startup Pavel Roskin
2007-09-01 4:36 ` [PATCH 26/35] Improve dump of MAC_ADDR Pavel Roskin
2007-09-01 4:36 ` [PATCH 27/35] Remove unneeded braces, found by checkpatch.pl Pavel Roskin
2007-09-01 4:36 ` [PATCH 28/35] Convert dbg() to at76_dbg() or remove it Pavel Roskin
2007-09-01 4:37 ` [PATCH 29/35] Eliminate at76_dbg_dumpbuf() in favor of hex2str() Pavel Roskin
2007-09-01 4:37 ` [PATCH 30/35] Eliminate pr_debug() in favor of at76_dbg() Pavel Roskin
2007-09-01 4:37 ` [PATCH 31/35] Simplify logic in at76_is_hidden_ssid() Pavel Roskin
2007-09-01 4:37 ` [PATCH 32/35] Massive cleanup of dump functions Pavel Roskin
2007-09-01 4:37 ` [PATCH 33/35] Remove international roaming support Pavel Roskin
2007-09-01 4:37 ` [PATCH 34/35] Don't do additional MIB dumps if DEBUG is defined Pavel Roskin
2007-09-01 4:37 ` [PATCH 35/35] Replace scan_runs with scan_need_any Pavel Roskin
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