This is a note to let you know that I've just added the patch titled
Staging: rtl8192su: Fix procfs code for interfaces not named wlan0
to the 2.6.32-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.32.git;a=summary
The filename of the patch is:
staging-rtl8192su-fix-procfs-code-for-interfaces-not.patch
and it can be found in the queue-2.6.32 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.32 longterm
tree,
please let <[email protected]> know about it.
>From 51ef48814ac1a619db6b6d530c678a19d1c5d909 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <[email protected]>
Date: Tue, 25 May 2010 04:25:57 +0100
Subject: Staging: rtl8192su: Fix procfs code for interfaces not named wlan0
From: Ben Hutchings <[email protected]>
commit 41a38d9e632f7c9ec5ad8fc627567d97f4302c4a upstream.
The current code creates directories in procfs named after interfaces,
but doesn't handle renaming. This can result in name collisions and
consequent WARNINGs. It also means that the interface name cannot
reliably be used to remove the directory - in fact the current code
doesn't even try, and always uses "wlan0"!
Since the name of a proc_dir_entry is embedded in it, use that when
removing it.
Add a netdev notifier to catch interface renaming, and remove and
re-add the directory at this point.
Signed-off-by: Ben Hutchings <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/staging/rtl8192su/r8192U_core.c | 35 +++++++++++++++++++++++++++++---
1 file changed, 32 insertions(+), 3 deletions(-)
--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -25,6 +25,7 @@
*/
#include <linux/vmalloc.h>
+#include <linux/notifier.h>
#undef LOOP_TEST
#undef DUMP_RX
@@ -160,6 +161,8 @@ MODULE_PARM_DESC(channels," Channel bitm
static int __devinit rtl8192_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id);
static void __devexit rtl8192_usb_disconnect(struct usb_interface *intf);
+static const struct net_device_ops rtl8192_netdev_ops;
+static struct notifier_block proc_netdev_notifier;
static struct usb_driver rtl8192_usb_driver = {
.name = RTL819xU_MODULE_NAME, /* Driver name */
@@ -961,14 +964,22 @@ static int proc_get_stats_rx(char *page,
int rtl8192_proc_module_init(void)
{
+ int ret;
+
RT_TRACE(COMP_INIT, "Initializing proc filesystem");
rtl8192_proc=create_proc_entry(RTL819xU_MODULE_NAME, S_IFDIR,
init_net.proc_net);
- return rtl8192_proc ? 0 : -ENOMEM;
+ if (!rtl8192_proc)
+ return -ENOMEM;
+ ret = register_netdevice_notifier(&proc_netdev_notifier);
+ if (ret)
+ remove_proc_entry(RTL819xU_MODULE_NAME, init_net.proc_net);
+ return ret;
}
void rtl8192_proc_module_remove(void)
{
+ unregister_netdevice_notifier(&proc_netdev_notifier);
remove_proc_entry(RTL819xU_MODULE_NAME, init_net.proc_net);
}
@@ -996,8 +1007,7 @@ void rtl8192_proc_remove_one(struct net_
remove_proc_entry("registers-e", priv->dir_dev);
// remove_proc_entry("cck-registers",priv->dir_dev);
// remove_proc_entry("ofdm-registers",priv->dir_dev);
- //remove_proc_entry(dev->name, rtl8192_proc);
- remove_proc_entry("wlan0", rtl8192_proc);
+ remove_proc_entry(priv->dir_dev->name, rtl8192_proc);
priv->dir_dev = NULL;
}
}
@@ -1114,6 +1124,25 @@ void rtl8192_proc_init_one(struct net_de
dev->name);
}
}
+
+static int proc_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct net_device *net_dev = ptr;
+
+ if (net_dev->netdev_ops == &rtl8192_netdev_ops &&
+ event == NETDEV_CHANGENAME) {
+ rtl8192_proc_remove_one(net_dev);
+ rtl8192_proc_init_one(net_dev);
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block proc_netdev_notifier = {
+ .notifier_call = proc_netdev_event,
+};
+
/****************************************************************************
-----------------------------MISC STUFF-------------------------
*****************************************************************************/
Patches currently in longterm-queue-2.6.32 which might be from
[email protected] are
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/cxgb3-declare-module_firmware.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/bnx2x-declare-module_firmware.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/myri10ge-declare-module_firmware.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/kconfig-avoid-buffer-underrun-in-choice-input.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/staging-rtl8192su-fix-procfs-code-for-interfaces-not.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/netx-declare-module_firmware.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/staging-rtl8192su-clean-up-in-case-of-an-error-in-mo.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/pcnet-cs-declare-module_firmware.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/spider-net-declare-module_firmware.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/tms380tr-declare-module_firmware.patch
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