From 48e6c51bd326ce9faf07fbdf84d361c9755b7035 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Thu, 22 May 2008 17:06:36 +0200 Subject: [PATCH 1/6] b43legacy: Fix controller restart crash This fixes a kernel crash on rmmod, in the case where the controller was restarted before doing the rmmod. Signed-off-by: Michael Buesch Signed-off-by: John W. Linville --- drivers/net/wireless/b43legacy/main.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 14a5eea2573e..204077c13870 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -3039,7 +3039,6 @@ static void b43legacy_set_pretbtt(struct b43legacy_wldev *dev) /* Locking: wl->mutex */ static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev) { - struct b43legacy_wl *wl = dev->wl; struct b43legacy_phy *phy = &dev->phy; u32 macctl; @@ -3054,12 +3053,6 @@ static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev) macctl |= B43legacy_MACCTL_PSM_JMP0; b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl); - mutex_unlock(&wl->mutex); - /* Must unlock as it would otherwise deadlock. No races here. - * Cancel possibly pending workqueues. */ - cancel_work_sync(&dev->restart_work); - mutex_lock(&wl->mutex); - b43legacy_leds_exit(dev); b43legacy_rng_exit(dev->wl); b43legacy_pio_free(dev); @@ -3486,6 +3479,8 @@ static void b43legacy_chip_reset(struct work_struct *work) } } out: + if (err) + wl->current_dev = NULL; /* Failed to init the dev. */ mutex_unlock(&wl->mutex); if (err) b43legacyerr(wl, "Controller restart FAILED\n"); @@ -3618,9 +3613,11 @@ static void b43legacy_one_core_detach(struct ssb_device *dev) struct b43legacy_wldev *wldev; struct b43legacy_wl *wl; + /* Do not cancel ieee80211-workqueue based work here. + * See comment in b43legacy_remove(). */ + wldev = ssb_get_drvdata(dev); wl = wldev->wl; - cancel_work_sync(&wldev->restart_work); b43legacy_debugfs_remove_device(wldev); b43legacy_wireless_core_detach(wldev); list_del(&wldev->list); @@ -3789,6 +3786,10 @@ static void b43legacy_remove(struct ssb_device *dev) struct b43legacy_wl *wl = ssb_get_devtypedata(dev); struct b43legacy_wldev *wldev = ssb_get_drvdata(dev); + /* We must cancel any work here before unregistering from ieee80211, + * as the ieee80211 unreg will destroy the workqueue. */ + cancel_work_sync(&wldev->restart_work); + B43legacy_WARN_ON(!wl); if (wl->current_dev == wldev) ieee80211_unregister_hw(wl->hw); From b212f3378a9cfca4da52d7c7e6f79ead8ec287fc Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 28 May 2008 12:40:39 -0700 Subject: [PATCH 2/6] airo warning fix WARNING: space prohibited between function name and open parenthesis '(' #22: FILE: drivers/net/wireless/airo.c:2907: + while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) { total: 0 errors, 1 warnings, 8 lines checked ./patches/wireless-airo-waitbusy-wont-delay.patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Dan Williams Cc: Roel Kluin Signed-off-by: Andrew Morton Signed-off-by: John W. Linville --- drivers/net/wireless/airo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index 4e1c690ff45f..32019fb878d8 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -2905,7 +2905,7 @@ EXPORT_SYMBOL(init_airo_card); static int waitbusy (struct airo_info *ai) { int delay = 0; - while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) { + while ((IN4500(ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) { udelay (10); if ((++delay % 20) == 0) OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY); From a6d4eae80157830af9c9d80de2daf6611696a34e Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 29 May 2008 14:38:28 -0400 Subject: [PATCH 3/6] ipw2200: expire and use oldest BSS on adhoc create If there are no networks on the free list, expire the oldest one when creating a new adhoc network. Because ipw2200 and the ieee80211 stack don't actually cull old networks and place them back on the free list unless they are needed for new probe responses, over time the free list would become empty and creating an adhoc network would fail due to the ! list_empty(...) check. Signed-off-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/ipw2200.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index d74c061994ae..729336774828 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c @@ -7558,8 +7558,31 @@ static int ipw_associate(void *data) priv->ieee->iw_mode == IW_MODE_ADHOC && priv->config & CFG_ADHOC_CREATE && priv->config & CFG_STATIC_ESSID && - priv->config & CFG_STATIC_CHANNEL && - !list_empty(&priv->ieee->network_free_list)) { + priv->config & CFG_STATIC_CHANNEL) { + /* Use oldest network if the free list is empty */ + if (list_empty(&priv->ieee->network_free_list)) { + struct ieee80211_network *oldest = NULL; + struct ieee80211_network *target; + DECLARE_MAC_BUF(mac); + + list_for_each_entry(target, &priv->ieee->network_list, list) { + if ((oldest == NULL) || + (target->last_scanned < oldest->last_scanned)) + oldest = target; + } + + /* If there are no more slots, expire the oldest */ + list_del(&oldest->list); + target = oldest; + IPW_DEBUG_ASSOC("Expired '%s' (%s) from " + "network list.\n", + escape_essid(target->ssid, + target->ssid_len), + print_mac(mac, target->bssid)); + list_add_tail(&target->list, + &priv->ieee->network_free_list); + } + element = priv->ieee->network_free_list.next; network = list_entry(element, struct ieee80211_network, list); ipw_adhoc_create(priv, network); From a75eda43dc4a64d0bd0502da546871c01f70e899 Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Fri, 30 May 2008 14:53:22 +0200 Subject: [PATCH 4/6] libertas: fix command size for CMD_802_11_SUBSCRIBE_EVENT The size was two small by two bytes. Signed-off-by: Holger Schurig Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c index ad2fabca9116..0aa0ce3b2c42 100644 --- a/drivers/net/wireless/libertas/debugfs.c +++ b/drivers/net/wireless/libertas/debugfs.c @@ -312,8 +312,8 @@ static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask, if (tlv_type != TLV_TYPE_BCNMISS) tlv->freq = freq; - /* The command header, the event mask, and the one TLV */ - events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 2 + sizeof(*tlv)); + /* The command header, the action, the event mask, and one TLV */ + events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 4 + sizeof(*tlv)); ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events); From a3bafeedfff2ac5fa0a316bea4570e27900b6fcc Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 2 Jun 2008 16:15:23 +0200 Subject: [PATCH 5/6] ssb: Fix context assertion in ssb_pcicore_dev_irqvecs_enable This fixes a context assertion in ssb that makes b44 print out warnings on resume. This fixes the following kernel oops: http://www.kerneloops.org/oops.php?number=12732 http://www.kerneloops.org/oops.php?number=11410 Signed-off-by: Michael Buesch Signed-off-by: John W. Linville --- drivers/ssb/driver_pcicore.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/ssb/driver_pcicore.c b/drivers/ssb/driver_pcicore.c index 75def13e797d..d28c53868093 100644 --- a/drivers/ssb/driver_pcicore.c +++ b/drivers/ssb/driver_pcicore.c @@ -537,12 +537,12 @@ int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc, int err = 0; u32 tmp; - might_sleep(); - if (!pdev) goto out; bus = pdev->bus; + might_sleep_if(pdev->id.coreid != SSB_DEV_PCI); + /* Enable interrupts for this device. */ if (bus->host_pci && ((pdev->id.revision >= 6) || (pdev->id.coreid == SSB_DEV_PCIE))) { From 4546002c813568829b70d00fab752de3999c3f1a Mon Sep 17 00:00:00 2001 From: Felix Homann Date: Thu, 29 May 2008 00:36:45 -0700 Subject: [PATCH 6/6] USB ID for Philips CPWUA054/00 Wireless USB Adapter 11g Enable the Philips CPWUA054/00 in p54usb. Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: John W. Linville --- drivers/net/wireless/p54/p54usb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c index 98ddbb3b3273..1610a7308c1d 100644 --- a/drivers/net/wireless/p54/p54usb.c +++ b/drivers/net/wireless/p54/p54usb.c @@ -49,6 +49,7 @@ static struct usb_device_id p54u_table[] __devinitdata = { {USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */ /* Version 2 devices (3887) */ + {USB_DEVICE(0x0471, 0x1230)}, /* Philips CPWUA054/00 */ {USB_DEVICE(0x050d, 0x7050)}, /* Belkin F5D7050 ver 1000 */ {USB_DEVICE(0x0572, 0x2000)}, /* Cohiba Proto board */ {USB_DEVICE(0x0572, 0x2002)}, /* Cohiba Proto board */