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2008-08-05AX.25: Fix sysctl registration if !CONFIG_AX25_DAMA_SLAVEGravatar Ralf Baechle 1-10/+4
Since 49ffcf8f99e8d33ec8afb450956804af518fd788 ("sysctl: update sysctl_check_table") setting struct ctl_table.procname = NULL does no longer work as it used to the way the AX.25 code is expecting it to resulting in the AX.25 sysctl registration code to break if CONFIG_AX25_DAMA_SLAVE was not set as in some distribution kernels. Kernel releases from 2.6.24 are affected. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-05pktgen: mac countGravatar Robert Olsson 1-2/+2
dst_mac_count and src_mac_count patch from Eneas Hunguana We have sent one mac address to much. Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-05pktgen: random flow Gravatar Robert Olsson 1-1/+5
Random flow generation has not worked. This fixes it. Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-05bridge: Eliminate unnecessary forward delayGravatar Stephen Hemminger 1-7/+18
From: Stephen Hemminger <shemminger@vyatta.com> Based upon original patch by Herbert Xu, which contained the following problem description: -------------------- When the forward delay is set to zero, we still delay the setting of the forwarding state by one or possibly two timers depending on whether STP is enabled. This could either turn out to be instantaneous, or horribly slow depending on the load of the machine. As there is nothing preventing us from enabling forwarding straight away, this patch eliminates this potential delay by executing the code directly if the forward delay is zero. The effect of this problem is that immediately after the carrier comes on a port, the bridge will drop all packets received from that port until it enters forwarding mode, thus causing unnecessary packet loss. Note that this patch doesn't fully remove the delay due to the link watcher. We should also check the carrier state when we are about to drop an incoming packet because the port is disabled. But that's for another patch. -------------------- This version of the fix takes a different approach, in that it just does the state change directly. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-05Merge branch 'no-ath9k' of ↵Gravatar David S. Miller 37-724/+795
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2008-08-05bridge: fix compile warning in net/bridge/br_netfilter.cGravatar Rami Rosen 1-1/+1
This patch fixes the following warning due to incompatible pointer assignment: net/bridge/br_netfilter.c: In function 'br_netfilter_rtable_init': net/bridge/br_netfilter.c:116: warning: assignment from incompatible pointer type This warning is due to commit 4adf0af6818f3ea52421dc0bae836cfaf20ef72a from July 30 (send correct MTU value in PMTU (revised)). Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-05ipv4: remove unused field in struct flowi (include/net/flow.h).Gravatar Rami Rosen 1-1/+0
This patch removes an unused field (flags) from struct flowi; it seems that this "flags" field was used once in the past for multipath routing with FLOWI_FLAG_MULTIPATHOLDROUTE flag (which does no longer exist); however, the "flags" field of struct flowi is not used anymore. Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-04tg3: Fix 'scheduling while atomic' errorsGravatar Matt Carlson 1-16/+4
This patch fixes the 'scheduling while atomic' errors introduced by commit 12dac0756d357325b107fe6ec24921ec38661839 ("tg3: adapt tg3 to use reworked PCI PM code"). The first hunk of the patch removes an unnecessary tg3_set_power_state() call. The chip will already be in the D0 state either due to a chip reset or through a previous call to tg3_set_power_state(). The second hunk of the patch moves the tg3_set_power_state() call outside the critical section guarded by tg3_full_lock() and tg3_full_unlock() functions. The power state of the device is and should be outside the lock's domain and all other tg3_set_power_state() calls support this. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-04net: Kill plain NET_XMIT_BYPASS.Gravatar David S. Miller 2-14/+1
dst_input() was doing something completely absurd, looping on skb->dst->input() if NET_XMIT_BYPASS was seen, but these functions never return such an error. And as a result plain ole' NET_XMIT_BYPASS has no more references and can be completely killed off. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-04net_sched: Add qdisc __NET_XMIT_BYPASS flagGravatar Jarek Poplawski 10-20/+19
Patrick McHardy <kaber@trash.net> noticed that it would be nice to handle NET_XMIT_BYPASS by NET_XMIT_SUCCESS with an internal qdisc flag __NET_XMIT_BYPASS and to remove the mapping from dev_queue_xmit(). David Miller <davem@davemloft.net> spotted a serious bug in the first version of this patch. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-04net_sched: Add qdisc __NET_XMIT_STOLEN flagGravatar Jarek Poplawski 12-34/+68
Patrick McHardy <kaber@trash.net> noticed: "The other problem that affects all qdiscs supporting actions is TC_ACT_QUEUED/TC_ACT_STOLEN getting mapped to NET_XMIT_SUCCESS even though the packet is not queued, corrupting upper qdiscs' qlen counters." and later explained: "The reason why it translates it at all seems to be to not increase the drops counter. Within a single qdisc this could be avoided by other means easily, upper qdiscs would still increase the counter when we return anything besides NET_XMIT_SUCCESS though. This means we need a new NET_XMIT return value to indicate this to the upper qdiscs. So I'd suggest to introduce NET_XMIT_STOLEN, return that to upper qdiscs and translate it to NET_XMIT_SUCCESS in dev_queue_xmit, similar to NET_XMIT_BYPASS." David Miller <davem@davemloft.net> noticed: "Maybe these NET_XMIT_* values being passed around should be a set of bits. They could be composed of base meanings, combined with specific attributes. So you could say "NET_XMIT_DROP | __NET_XMIT_NO_DROP_COUNT" The attributes get masked out by the top-level ->enqueue() caller, such that the base meanings are the only thing that make their way up into the stack. If it's only about communication within the qdisc tree, let's simply code it that way." This patch is trying to realize these ideas. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-04iwl3945: fix merge mistake for packet injectionGravatar Zhu Yi 1-6/+0
We should allow packets transmission in monitor mode for 3945. The patch fixes a merge error with 2.6.26 kernel. Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: grap nic access before accessing periphery registersGravatar Tomas Winkler 1-1/+3
We need to grap nic access before accessing periphery registers. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: decrement rx skb counter in scan abort handlerGravatar Emmanuel Grumbach 1-0/+1
This patch decrements rx skb counter in scan abort handler. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: fix unhandled interrupt when HW rfkill is onGravatar Tomas Winkler 1-10/+8
This patch fixes unhandled interrupt when HW rfkill is on during devices start up. The behavior changes, now open is successful even when rfkill is on. This is to align with the situation when rfkill is set on after opening. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: implement iwl5000_calc_rssiGravatar Tomas Winkler 5-51/+119
This patch implements rssi calculation for 5000 HW. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: memory allocation optimizationGravatar Gregory Greenman 4-28/+59
This patch optimizes memory allocation. The cmd member of iwl_tx_queue was allocated previously as a continuous block of memory. This patch allocates separate memory chunks for each command and maps/unmaps these chunks in the run time. Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: HW bug fixesGravatar Tomas Winkler 4-7/+32
This patch adds few HW bug fixes. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04p54: Fix potential concurrent access to private dataGravatar Larry Finger 2-0/+7
Experience with the rtl8187 driver has shown that mac80211 can make calls to the config callback routine in rapid succession. This patch creates a mutex that protects the private data in several of the routines called by mac80211. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04rt2x00: Disable link tuning in rt2500usbGravatar Ivo van Doorn 1-0/+14
In the legacy rt2570 driver the link tuner was never really called. And now the reason has finally become apparent: It breaks TX capabilities As soon as the device has been associated all following TX frames will be queued in the hardware and never transmitted to the air. Disabling sections of the link tuner did not have the expected result, but completely disabling the link tuner did have the right result (Both of my rt2570 devices came back to life). This should fix Fedora bug: 411481 v2: Fix typos Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: Don't use buffer allocated on the stack for led namesGravatar Sven Wegener 4-28/+36
Having the buffer on the stack and even re-using it for all led devices is bad. Not being able to resolve the name member of the led device structure to a meaningful value leads to confusion during ad-hoc debugging and potential breakage in the future, if we ever decide to access the name member outside of the registration function. Move the buffer to our private per led device structures so that it is accessible after registration. A quick grep didn't yield any occurence of using the led device name parameter outside of the led device registration function, so currently we should already be safe for normal operation. Signed-off-by: Sven Wegener <sven.wegener@stealer.net> Cc: Richard Purdie <rpurdie@rpsys.net> Acked-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: rename 4965 to AGNGravatar Tomas Winkler 4-63/+68
This patch renames driver name from 4965 to AGN The driver supports both 4965AGN and 5000AGN family The driver's original module name iwl4965.ko remains as an alias Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: fix checkpatch.pl errorsGravatar Tomas Winkler 11-60/+55
This patch fixes errors reported by checkpatch in iwlwifi drivers Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: rename iwl4965-base.c to iwl-agn.cGravatar Tomas Winkler 2-4/+2
This patch renames iwl4965-base.c to iwl-agn.c Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04mac80211: automatic IBSS channel selectionGravatar Daniel Drake 1-4/+16
When joining an ad-hoc network, the user is currently required to specify the channel. The network will not be joined otherwise, unless it happens to be sitting on the currently active channel. This patch implements automatic channel selection when the user has not locked the interface onto a specific channel. Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: use dtim_period from association, and set listen_intervalGravatar Tomas Winkler 3-4/+5
This patch uses dtim_period from association, and sets the listen_interval. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: RS small compile warnings without CONFIG_IWLWIFI_DEBUGGravatar Denis V. Lunev 1-0/+2
iwl-agn-rs.c: In function 'rs_clear': iwl-agn-rs.c:2405: warning: unused variable 'priv Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: bug fix in AGG flow - cast const to ULLGravatar Emmanuel Grumbach 3-7/+7
This patch fixes a bug in AGG flow: u64 bitmap = 0; bitmap |= 1 << 32 results to be 0xffffffff80000000. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: set led register in disassociationGravatar Esti Kummer 1-16/+24
This patch sets the led register in disassociation flow according to rf-kill state : off - in case of rf_kill, on - otherwise. Signed-off-by: Esti Kummer <ester.kummer@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: kill iwl4965_fill_rs_infoGravatar Tomas Winkler 3-111/+0
iwl4965_fill_rs_info was used in sysfs. This info is already present in iwl-agn-rs debugfs. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: rename iwl-4695-rs to iwl-agn-rsGravatar Tomas Winkler 7-128/+119
This patch renames iwl-4965-rs to iwl-agn-rs as it provides rate scale capability for all AGN capable iwlwifi drivers. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: move iwl4965_set_pwr_src to iwl4965-base.cGravatar Tomas Winkler 2-33/+31
This patch moves iwl4965_set_pwr_src to iwl4965-base.c. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: move beacon handling to iwl4965-base.cGravatar Tomas Winkler 4-39/+37
This patch concentrates becaon handling in iwl4965-base.c. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: move iwl4965_mac_ampdu_action to iwl4965-base.cGravatar Tomas Winkler 3-38/+34
This patch moves iwl4965_mac_ampdu_action to iwl4965-base.c. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04mac80211: make listen_interval be limited by low level driverGravatar Tomas Winkler 3-3/+17
This patch makes possible for a driver to specify maximal listen interval The possibility for user to configure listen interval is not implemented yet, currently the maximum provided by the driver or 1 is used. Mac80211 uses config handler to set listen interval for to the driver. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04mac80211: pass dtim_period to low level driverGravatar Emmanuel Grumbach 4-1/+28
This patch adds the dtim_period in ieee80211_bss_conf, this allows the low level driver to know the dtim_period, and to plan power save accordingly. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: corrects power_level in sysfsGravatar Esti Kummer 3-63/+58
This patch corrects power_level in sysfs. Signed-off-by: Esti Kummer <ester.kummer@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04iwlwifi: add power save to 5000 HWGravatar Mohamed Abbas 7-24/+18
This patch adds support for power save for 5000 HW. Signed-off-by: Mohamed Abbas <mohamed.abbas@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-03net: eliminate refcounting in backlog queueGravatar Stephen Hemminger 1-7/+16
Avoid the overhead of atomic increment/decrement on each received packet. This helps performance of non-NAPI devices (like loopback). Use cleanup function to walk queue on each cpu and clean out any left over packets. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-03ipv6: Do not drop packet if skb->local_df is set to trueGravatar Wei Yongjun 1-1/+1
The old code will drop IPv6 packet if ipfragok is not set, since ipfragok is obsoleted, will be instead by used skb->local_df, so this check must be changed to skb->local_df. This patch fix this problem and not drop packet if skb->local_df is set to true. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-03sctp: Drop ipfargok in sctp_xmit functionGravatar Herbert Xu 4-11/+15
The ipfragok flag controls whether the packet may be fragmented either on the local host on beyond. The latter is only valid on IPv4. In fact, we never want to do the latter even on IPv4 when PMTU is enabled. This is because even though we can't fragment packets within SCTP due to the prtocol's inherent faults, we can still fragment it at IP layer. By setting the DF bit we will improve the PMTU process. RFC 2960 only says that we SHOULD clear the DF bit in this case, so we're compliant even if we set the DF bit. In fact RFC 4960 no longer has this statement. Once we make this change, we only need to control the local fragmentation. There is already a bit in the skb which controls that, local_df. So this patch sets that instead of using the ipfragok argument. The only complication is that there isn't a struct sock object per transport, so for IPv4 we have to resort to changing the pmtudisc field for every packet. This should be safe though as the protocol is single-threaded. Note that after this patch we can remove ipfragok from the rest of the stack too. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-03ipv6: Fix the return value of Set Hop-by-Hop options header with NULL data ↵Gravatar Yang Hongyang 1-0/+2
pointer When Set Hop-by-Hop options header with NULL data pointer and optlen is not zero use setsockopt(), the kernel successfully return 0 instead of return error EINVAL or EFAULT. This patch fix the problem. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-03ipv6: syncookies: free reqsk on xfrm_lookup errorGravatar Florian Westphal 1-11/+11
cookie_v6_check() did not call reqsk_free() if xfrm_lookup() fails, leaking the request sock. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-03net: Add missing extra2 parameter for ip_default_ttl sysctlGravatar Sven Wegener 1-0/+1
Commit 76e6ebfb40a2455c18234dcb0f9df37533215461 ("netns: add namespace parameter to rt_cache_flush") acceses the extra2 parameter of the ip_default_ttl ctl_table, but it is never set to a meaningful value. When e84f84f276473dcc673f360e8ff3203148bdf0e2 ("netns: place rt_genid into struct net") is applied, we'll oops in rt_cache_invalidate(). Set extra2 to init_net, to avoid that. Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Sven Wegener <sven.wegener@stealer.net> Tested-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-03net: use software GSO for SG+CSUM capable netdevicesGravatar Lennert Buytenhek 1-0/+4
If a netdevice does not support hardware GSO, allowing the stack to use GSO anyway and then splitting the GSO skb into MSS-sized pieces as it is handed to the netdevice for transmitting is likely still a win as far as throughput and/or CPU usage are concerned, since it reduces the number of trips through the output path. This patch enables the use of GSO on any netdevice that supports SG. If a GSO skb is then sent to a netdevice that supports SG but does not support hardware GSO, net/core/dev.c:dev_hard_start_xmit() will take care of doing the necessary GSO segmentation in software. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-03net: fix missing pneigh entries in the neighbor seq_file codeGravatar Chris Larson 1-5/+6
When pneigh entries exist, but the user's read buffer isn't sufficient to hold them all, one of the pneigh entries will be missing from the results. In neigh_get_idx_any, the number of elements which neigh_get_idx encountered is not correctly subtracted from the position number before the call to pneigh_get_idx. neigh_get_idx reduces the position by 1 for each call to neigh_get_next, but it does not reduce it by one for the first element (neigh_get_first). The patch alters the neigh_get_idx and pneigh_get_idx functions to subtract one from pos, for the first element, when pos is non-zero. Signed-off-by: Chris Larson <clarson@mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-03net: in the first call to neigh_seq_next, call neigh_get_first, not ↵Gravatar Chris Larson 1-1/+1
neigh_get_idx. neigh_seq_next won't be called both with *pos > 0 && v == SEQ_START_TOKEN, so there's no point calling neigh_get_idx when we're on the start token, just call neigh_get_first directly. Signed-off-by: Chris Larson <clarson@mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-02pkt_sched: Make sure RTNL is held in qdisc_root_lock().Gravatar David S. Miller 1-0/+12
It is the only legal environment in which this can be used. Add some commentary explaining the situation. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-02mac80211: Use queue_lock() in ieee80211_ht_agg_queue_remove().Gravatar David S. Miller 1-2/+4
qdisc_root_lock() is only %100 safe to use when the RTNL semaphore is held. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-02pkt_sched: Use qdisc_lock() on already sampled root qdisc.Gravatar David S. Miller 2-8/+8
Based upon a bug report by Jeff Kirsher. Don't use qdisc_root_lock() in these cases as the root qdisc could have been changed, and we'd thus lock the wrong object. Tested by Emil S Tantilov who confirms that this seems to fix the problem. Signed-off-by: David S. Miller <davem@davemloft.net>