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2019-10-01mac80211: fix txq null pointer dereferenceMiaoqing Pan1-2/+9
If the interface type is P2P_DEVICE or NAN, read the file of '/sys/kernel/debug/ieee80211/phyx/netdev:wlanx/aqm' will get a NULL pointer dereference. As for those interface type, the pointer sdata->vif.txq is NULL. Unable to handle kernel NULL pointer dereference at virtual address 00000011 CPU: 1 PID: 30936 Comm: cat Not tainted 4.14.104 #1 task: ffffffc0337e4880 task.stack: ffffff800cd20000 PC is at ieee80211_if_fmt_aqm+0x34/0xa0 [mac80211] LR is at ieee80211_if_fmt_aqm+0x34/0xa0 [mac80211] [...] Process cat (pid: 30936, stack limit = 0xffffff800cd20000) [...] [<ffffff8000b7cd00>] ieee80211_if_fmt_aqm+0x34/0xa0 [mac80211] [<ffffff8000b7c414>] ieee80211_if_read+0x60/0xbc [mac80211] [<ffffff8000b7ccc4>] ieee80211_if_read_aqm+0x28/0x30 [mac80211] [<ffffff80082eff94>] full_proxy_read+0x2c/0x48 [<ffffff80081eef00>] __vfs_read+0x2c/0xd4 [<ffffff80081ef084>] vfs_read+0x8c/0x108 [<ffffff80081ef494>] SyS_read+0x40/0x7c Signed-off-by: Miaoqing Pan <[email protected]> Acked-by: Toke Høiland-Jørgensen <[email protected]> Link: https://lore.kernel.org/r/[email protected] [trim useless data from commit message] Signed-off-by: Johannes Berg <[email protected]>
2019-06-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-4/+1
Minor SPDX change conflict. Signed-off-by: David S. Miller <[email protected]>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-4/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Enrico Weigelt <[email protected]> Reviewed-by: Kate Stewart <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-06-14mac80211: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-7/+3
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Johannes Berg <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2019-04-23mac80211: don't attempt to rename ERR_PTR() debugfs dirsJohannes Berg1-1/+1
We need to dereference the directory to get its parent to be able to rename it, so it's clearly not safe to try to do this with ERR_PTR() pointers. Skip in this case. It seems that this is most likely what was causing the report by syzbot, but I'm not entirely sure as it didn't come with a reproducer this time. Cc: [email protected] Reported-by: [email protected] Signed-off-by: Johannes Berg <[email protected]>
2018-11-09{nl,mac}80211: add dot11MeshConnectedToMeshGate to meshconfBob Copeland1-0/+3
When userspace is controlling mesh routing, it may have better knowledge about whether a mesh STA is connected to a mesh gate than the kernel mpath table. Add dot11MeshConnectedToMeshGate to the mesh config so that such applications can explicitly signal that a mesh STA is connected to a gate, which will then be advertised in the beacon. Signed-off-by: Bob Copeland <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2017-06-16networking: convert many more places to skb_put_zero()Johannes Berg1-3/+2
There were many places that my previous spatch didn't find, as pointed out by yuan linyu in various patches. The following spatch found many more and also removes the now unnecessary casts: @@ identifier p, p2; expression len; expression skb; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_zero(skb, len); | -p = (t)skb_put(skb, len); +p = skb_put_zero(skb, len); ) ... when != p ( p2 = (t2)p; -memset(p2, 0, len); | -memset(p, 0, len); ) @@ type t, t2; identifier p, p2; expression skb; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_zero(skb, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_zero(skb, sizeof(t)); ) ... when != p ( p2 = (t2)p; -memset(p2, 0, sizeof(*p)); | -memset(p, 0, sizeof(*p)); ) @@ expression skb, len; @@ -memset(skb_put(skb, len), 0, len); +skb_put_zero(skb, len); Apply it to the tree (with one manual fixup to keep the comment in vxlan.c, which spatch removed.) Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-12-13mac80211: multicast to unicast conversionMichael Braun1-0/+3
Add the ability for an AP (and associated VLANs) to perform multicast-to-unicast conversion for ARP, IPv4 and IPv6 frames (possibly within 802.1Q). If enabled, such frames are to be sent to each station separately, with the DA replaced by their own MAC address rather than the group address. Note that this may break certain expectations of the receiver, such as the ability to drop unicast IP packets received within multicast L2 frames, or the ability to not send ICMP destination unreachable messages for packets received in L2 multicast (which is required, but the receiver can't tell the difference if this new option is enabled.) This also doesn't implement the 802.11 DMS (directed multicast service). Signed-off-by: Michael Braun <[email protected]> [use true/false, rename label to the correct "multicast", use __be16 for ethertype and network order for constants] Signed-off-by: Johannes Berg <[email protected]>
2016-10-12mac80211: filter multicast data packets on AP / AP_VLANMichael Braun1-0/+11
This patch adds filtering for multicast data packets on AP_VLAN interfaces that have no authorized station connected and changes filtering on AP interfaces to not count stations assigned to AP_VLAN interfaces. This saves airtime and avoids waking up other stations currently authorized in this BSS. When using WPA, the packets dropped could not be decrypted by any station. The behaviour when there are no AP_VLAN interfaces is left unchanged. When there are AP_VLAN interfaces, this patch 1. adds filtering multicast data packets sent on AP_VLAN interfaces that have no authorized station connected. No filtering happens on 4addr AP_VLAN interfaces. 2. makes filtering of multicast data packets sent on AP interfaces depend on the number of authorized stations in this bss not assigned to an AP_VLAN interface. Therefore, a new num_mcast_sta counter is added for AP_VLAN interfaces. The existing one for AP interfaces is altered to not track stations assigned to an AP_VLAN interface. The new counter is exposed in debugfs. Signed-off-by: Michael Braun <[email protected]> [reformat commit message a bit, unline ieee80211_vif_{inc,dec}_num_mcast] Signed-off-by: Johannes Berg <[email protected]>
2016-09-30mac80211: add offset_tsf driver op and use it for meshPedersen, Thomas1-3/+9
This allows the mesh sync (and debugfs) code to make incremental TSF adjustments, avoiding any uncertainty introduced by delay in programming absolute TSF. Signed-off-by: Thomas Pedersen <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2016-09-13mac80211: Re-structure aqm debugfs output and keep CoDel stats per txqToke Høiland-Jørgensen1-1/+36
Currently the 'aqm' stats in mac80211 only keeps overlimit drop stats, not CoDel stats. This moves the CoDel stats into the txqi structure to keep them per txq in order to show them in debugfs. In addition, the aqm debugfs output is restructured by splitting it up into three files: One global per phy, one per netdev and one per station, in the appropriate directories. The files are all called aqm, and are only created if the driver supports the wake_tx_queue op (rather than emitting an error on open as previously). Signed-off-by: Toke Høiland-Jørgensen <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2016-04-12cfg80211: remove enum ieee80211_bandJohannes Berg1-6/+6
This enum is already perfectly aliased to enum nl80211_band, and the only reason for it is that we get IEEE80211_NUM_BANDS out of it. There's no really good reason to not declare the number of bands in nl80211 though, so do that and remove the cfg80211 one. Signed-off-by: Johannes Berg <[email protected]>
2015-09-22mac80211: remove last_beacon/ave_beacon debugfs filesJohannes Berg1-12/+0
These file aren't really useful: - if per beacon data is required then you need to use radiotap or similar anyway, debugfs won't help much - average beacon signal is reported in station info in nl80211 and can be looked up with iw Signed-off-by: Johannes Berg <[email protected]>
2015-09-22mac80211: debugfs: add file to disallow TDLS wider-bwArik Nemtsov1-0/+29
Sometimes we are interested in testing TDLS performance in a specific width setting. Add the ability to disable the wider-band feature, thereby allowing the TDLS channel width to be controlled by the BSS width. Signed-off-by: Arik Nemtsov <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2015-08-14mac80211: add rate mask logic for vht ratesLorenzo Bianconi1-0/+34
Define rc_rateidx_vht_mcs_mask array and rate_idx_match_vht_mcs_mask() method in order to apply mcs mask for vht rates Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2015-07-17mac80211: clear subdir_stations when removing debugfsTom Hughes1-0/+1
If we don't do this, and we then fail to recreate the debugfs directory during a mode change, then we will fail later trying to add stations to this now bogus directory: BUG: unable to handle kernel NULL pointer dereference at 0000006c IP: [<c0a92202>] mutex_lock+0x12/0x30 Call Trace: [<c0678ab4>] start_creating+0x44/0xc0 [<c0679203>] debugfs_create_dir+0x13/0xf0 [<f8a938ae>] ieee80211_sta_debugfs_add+0x6e/0x490 [mac80211] Cc: [email protected] Signed-off-by: Tom Hughes <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2015-03-20mac80211: remove drop_unencrypted codeJohannes Berg1-2/+0
This mechanism was historic, and only ever used by IBSS, which also doesn't need to have it as it properly manages station's 802.1X PAE state (or, with WEP, always has a key.) Remove the mechanism to clean up the code. Signed-off-by: Johannes Berg <[email protected]>
2014-09-11mac80211: replace SMPS hw flags with wiphy feature bitsEliad Peller1-2/+2
Use the new static_smps / dynamic_smps feature bits instead of mac80211-internal hw flags. Signed-off-by: Eliad Peller <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2014-05-28mac80211: don't check netdev state for debugfs read/writeArik Nemtsov1-4/+2
Doing so will lead to an oops for a p2p-dev interface, since it has no netdev. Cc: [email protected] Signed-off-by: Arik Nemtsov <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2014-02-11mac80211: add beacon_loss debugfs fileEliad Peller1-0/+13
Add beacon_loss debugfs file that emulates ieee80211_beacon_loss call from the driver. This can be used for various testing scenarios. Signed-off-by: Eliad Peller <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2014-01-06mac80211: sync dtim_count to TSFThomas Pedersen1-0/+1
On starting a mesh or AP BSS, the interface dtim_count countdown should match that of the driver TSF. Signed-off-by: Thomas Pedersen <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2014-01-06mac80211: clean up netdev debugfs macros a bitJohannes Berg1-27/+33
Clean up the file macros a bit and use that to remove the unnecessary format function for the tkip MIC test file that really is write-only. Signed-off-by: Johannes Berg <[email protected]>
2013-10-28mac80211: implement SMPS for APEmmanuel Grumbach1-9/+16
When the driver requests to move to STATIC or DYNAMIC SMPS, we send an action frame to each associated station and reconfigure the channel context / driver. Of course, non-MIMO stations are ignored. The beacon isn't updated. The association response will include the original capabilities. Stations that associate while in non-OFF SMPS mode will get an action frame right after association to inform them about our current state. Note that we wait until the end of the EAPOL. Sending an action frame before the EAPOL is finished can be an issue for a few clients. Clients aren't likely to send EAPOL frames in MIMO anyway. When the SMPS configuration gets more permissive (e.g. STATIC -> OFF), we don't wake up stations that are asleep We remember that they don't know about the change and send the action frame when they wake up. When the SMPS configuration gets more restrictive (e.g. OFF -> STATIC), we set the TIM bit for every sleeping STA. uAPSD stations might send MIMO until they poll the action frame, but this is for a short period of time. Signed-off-by: Emmanuel Grumbach <[email protected]> [fix vht streams loop, initialisation] Signed-off-by: Johannes Berg <[email protected]>
2013-05-25cfg80211/mac80211: use cfg80211 wdev mutex in mac80211Johannes Berg1-5/+5
Using separate locks in cfg80211 and mac80211 has always caused issues, for example having to unlock in places in mac80211 to call cfg80211, which even needed a framework to make cfg80211 calls after some functions returned etc. Additionally, I suspect some issues people have reported with the cfg80211 state getting confused could be due to such issues, when cfg80211 is asking mac80211 to change state but mac80211 is in the process of telling cfg80211 that the state changed (in another way.) Signed-off-by: Johannes Berg <[email protected]>
2013-05-24mac80211: Move mesh estab_plinks outside mesh_stats debug groupAshok Nagarajan1-2/+3
As estab_plinks is not a statistics member, don't show its debug information along with other mesh stat members Signed-off-by: Ashok Nagarajan <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2013-04-08mac80211: add beacon stats to debugfsBen Greear1-0/+11
Beacon-timeout and number of beacon loss events. Signed-off-by: Ben Greear <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2013-03-18mac80211: move sdata debugfs dir to vifStanislaw Gruszka1-11/+11
There is need create driver own per interface debugfs files. This is currently done by drv_{add,remove}_interface_debugfs() callbacks. But it is possible that after we remove interface from the driver (i.e. on suspend) we call drv_remove_interface_debugfs() function. Fixing this problem will require to add call drv_{add,remove}_interface_debugfs() anytime we create and remove interface in mac80211. So it's better to add debugfs dir dentry to vif structure to allow to create/remove custom debugfs driver files on drv_{add,remove}_interface(). Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2013-02-04mac80211: mesh power save basicsMarco Porsch1-0/+5
Add routines to - maintain a PS mode for each peer and a non-peer PS mode - indicate own PS mode in transmitted frames - track neighbor STAs power modes - buffer frames when neighbors are in PS mode - add TIM and Awake Window IE to beacons - release frames in Mesh Peer Service Periods Add local_pm to sta_info to represent the link-specific power mode at this station towards the remote station. When a peer link is established, use the default power mode stored in mesh config. Update the PS status if the peering status of a neighbor changes. Maintain a mesh power mode for non-peer mesh STAs. Set the non-peer power mode to active mode during peering. Authenticated mesh peering is currently not working when either node is configured to be in power save mode. Indicate the current power mode in transmitted frames. Use QoS Nulls to indicate mesh power mode transitions. For performance reasons, calls to the function setting the frame flags are placed in HWMP routing routines, as there the STA pointer is already available. Add peer_pm to sta_info to represent the peer's link-specific power mode towards the local station. Add nonpeer_pm to represent the peer's power mode towards all non-peer stations. Track power modes based on received frames. Add the ps_data structure to ieee80211_if_mesh (for TIM map, PS neighbor counter and group-addressed frame buffer). Set WLAN_STA_PS flag for STA in PS mode to use the unicast frame buffering routines in the tx path. Update num_sta_ps to buffer and release group-addressed frames after DTIM beacons. Announce the awake window duration in beacons if in light or deep sleep mode towards any peer or non-peer. Create a TIM IE similarly to AP mode and add it to mesh beacons. Parse received Awake Window IEs and check TIM IEs for buffered frames. Release frames towards peers in mesh Peer Service Periods. Use the corresponding trigger frames and monitor the MPSP status. Append a QoS Null as trigger frame if neccessary to properly end the MPSP. Currently, in HT channels MPSPs behave imperfectly and show large delay spikes and frame losses. Signed-off-by: Marco Porsch <[email protected]> Signed-off-by: Ivan Bezyazychnyy <[email protected]> Signed-off-by: Mike Krinkin <[email protected]> Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2012-11-26mac80211: convert to channel definition structJohannes Berg1-2/+0
Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <[email protected]>
2012-11-09mac80211: add debugfs file for HW queuesJohannes Berg1-0/+21
Add a debugfs file showing which HW queues were allocated to a virtual interface, including the CAB queue for AP interfaces. Change-Id: I486924e961b6ad6785a79db09620919ee644e703 Signed-off-by: Johannes Berg <[email protected]>
2012-11-07mac80211: use kstrtoull return valueJohannes Berg1-1/+1
If kstrtoull() returns an error code (a value smaller than zero), use it since it can be an error other than -EINVAL. Signed-off-by: Johannes Berg <[email protected]>
2012-11-07mac80211: fix race in TKIP MIC test debugfs fileJohannes Berg1-2/+5
Accessing sdata->vif.bss_conf.bssid without any protection here is racy, use u.mgd.associated instead and lock the correct mutex for it. Signed-off-by: Johannes Berg <[email protected]>
2012-11-07mac80211: use mac_ptonJohannes Berg1-28/+2
Instead of implementing practically the same function (hwaddr_aton) use mac_pton. Signed-off-by: Johannes Berg <[email protected]>
2012-10-30mac80211: handle TX power per virtual interfaceJohannes Berg1-0/+6
Even before channel contexts/multi-channel, having a single global TX power limit was already problematic, in particular if two managed interfaces connected to two APs with different power constraints. The channel context introduction completely broke this though and in fact I had disabled TX power configuration there for drivers using channel contexts. Change everything to track TX power per interface so that different user settings and different channel maxima are treated correctly. Also continue tracking the global TX power though for compatibility with applications that attempt to configure the wiphy's TX power globally. Signed-off-by: Johannes Berg <[email protected]>
2012-10-19mac80211: make client powersave independent of interface typeMarco Porsch1-3/+3
This patch prepares mac80211 for a later implementation of mesh or ad-hoc powersave clients. The structures related to powersave (buffer, TIM map, counters) are moved from the AP-specific interface structure to a generic structure that can be embedded into any interface type. The functions related to powersave are prepared to allow easy extension with different interface types. For example with: + } else if (sta->sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { + ps = &sdata->u.mesh.ps; Some references to the AP's beacon structure are removed where they were obviously not used. The patch compiles without warning and has been briefly tested as AP interface with one client in PS mode. Signed-off-by: Marco Porsch <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2012-10-17mac80211: move out the non-statistics variable estab_plinks from mesh_statAshok Nagarajan1-1/+1
estab_plinks is not a statistics member. Hence move estab_plinks from struct mesh_stat to struct ieee80211_if_mesh Signed-off-by: Ashok Nagarajan <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2012-10-17mac80211: track needed RX chains for channel contextsJohannes Berg1-1/+1
On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <[email protected]>
2012-06-24mac80211: clean up debuggingJohannes Berg1-2/+3
There are a few things that make the logging and debugging in mac80211 less useful than it should be right now: * a lot of messages should be pr_info, not pr_debug * wholesale use of pr_debug makes it require *both* Kconfig and dynamic configuration * there are still a lot of ifdefs * the style is very inconsistent, sometimes the sdata->name is printed in front Clean up everything, introducing new macros and separating out the station MLME debugging into a new Kconfig symbol. Signed-off-by: Johannes Berg <[email protected]>
2012-06-18{nl,cfg,mac}80211: implement dot11MeshHWMPconfirmationIntervalChun-Yeow Yeoh1-0/+3
As defined in section 13.10.9.3 Case D (802.11-2012), this control variable is used to limit the mesh STA to send only one PREQ to a root mesh STA within this interval of time (in TUs). The default value for this variable is set to 2000 TUs. However, for current implementation, the maximum configurable of dot11MeshHWMPconfirmationInterval is restricted by dot11MeshHWMPactivePathTimeout. Signed-off-by: Chun-Yeow Yeoh <[email protected]> [line-break commit log] Signed-off-by: Johannes Berg <[email protected]>
2012-06-14{nl,cfg,mac}80211: implement dot11MeshHWMProotInterval and ↵Chun-Yeow Yeoh1-0/+6
dot11MeshHWMPactivePathToRootTimeout Add the mesh configuration parameters dot11MeshHWMProotInterval and dot11MeshHWMPactivePathToRootTimeout to be used by proactive PREQ mechanism. Signed-off-by: Chun-Yeow Yeoh <[email protected]> [line-break commit log] Signed-off-by: Johannes Berg <[email protected]>
2012-06-11{nl,cfg,mac}80211: fix the coding style related to mesh parametersChun-Yeow Yeoh1-17/+17
fix the coding style related to mesh parameters, especially the indentation, as pointed out by Johannes Berg. Signed-off-by: Chun-Yeow Yeoh <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2012-06-06mac80211: Add missing mesh parameter dot11MeshForwarding for debugfsChun-Yeow Yeoh1-0/+1
Signed-off-by: Chun-Yeow Yeoh <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2012-06-05net: mac80211: Convert printk(KERN_DEBUG to pr_debugJoe Perches1-1/+1
Standardize the debugging to be able to use dynamic_debug. Coalesce formats, align arguments. Signed-off-by: Joe Perches <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2012-05-16mac80211: Add debugfs entry for mesh ht_opmodeAshok Nagarajan1-0/+2
Signed-off-by: Ashok Nagarajan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2012-04-24mac80211: rename AP variable num_sta_authorized to num_mcast_staFelix Fietkau1-2/+2
It is only used to test for BSS multicast receivers. Signed-off-by: Felix Fietkau <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2012-04-12Merge branch 'master' of ↵John W. Linville1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2012-04-10mac80211: Allow tsf increments via debugfsJavier Cardona1-0/+12
Reading and writing back the tsf value via tsf is too slow if one wants to make small increments to this timer. With this change you can use the syntax "+=<some value>" or "-=<some value>" to add or substract a value from the tsf counter. Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2012-04-09mac80211: reduce code duplication in debugfs codeFelix Fietkau1-58/+13
Signed-off-by: Felix Fietkau <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2012-04-05simple_open: automatically convert to simple_open()Stephen Boyd1-1/+1
Many users of debugfs copy the implementation of default_open() when they want to support a custom read/write function op. This leads to a proliferation of the default_open() implementation across the entire tree. Now that the common implementation has been consolidated into libfs we can replace all the users of this function with simple_open(). This replacement was done with the following semantic patch: <smpl> @ open @ identifier open_f != simple_open; identifier i, f; @@ -int open_f(struct inode *i, struct file *f) -{ ( -if (i->i_private) -f->private_data = i->i_private; | -f->private_data = i->i_private; ) -return 0; -} @ has_open depends on open @ identifier fops; identifier open.open_f; @@ struct file_operations fops = { ... -.open = open_f, +.open = simple_open, ... }; </smpl> [[email protected]: checkpatch fixes] Signed-off-by: Stephen Boyd <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Al Viro <[email protected]> Cc: Julia Lawall <[email protected]> Acked-by: Ingo Molnar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-03-15mac80211: make uapsd_* keys per-vifEliad Peller1-0/+58
uapsd_queues and uapsd_max_sp_len are relevant only for managed interfaces, and can be configured differently for each vif. Move them from the local struct to sdata->u.mgd, and update the debugfs functions accordingly. Signed-off-by: Eliad Peller <[email protected]> Signed-off-by: John W. Linville <[email protected]>
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