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2016-04-12cfg80211: remove enum ieee80211_bandJohannes Berg1-1/+1
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 <johannes.berg@intel.com>
2016-01-14cfg80211/mac80211: use to_delayed_workGeliang Tang1-2/+1
Use to_delayed_work() instead of open-coding it. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-07-17cfg80211: allow mgmt_frame_register callback to sleepJohannes Berg1-15/+60
This callback is currently not allowed to sleep, which makes it more difficult to implement proper driver methods in mac80211 than it has to be. Instead of doing asynchronous work here in mac80211, make it possible for the callback to sleep by doing some asynchronous work in cfg80211. This also enables improvements to other drivers, like ath6kl, that would like to sleep in this callback. While at it, also fix the code to call the driver on the implicit unregistration when an interface is removed, and do that also when a P2P-Device wdev is destroyed (otherwise we leak the structs.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-03cfg80211: add bss_type and privacy arguments in cfg80211_get_bss()Dedy Lansky1-2/+4
802.11ad adds new a network type (PBSS) and changes the capability field interpretation for the DMG (60G) band. The same 2 bits that were interpreted as "ESS" and "IBSS" before are re-used as a 2-bit field with 3 valid values (and 1 reserved). Valid values are: "IBSS", "PBSS" (new) and "AP". In order to get the BSS struct for the new PBSS networks, change the cfg80211_get_bss() function to take a new enum ieee80211_bss_type argument with the valid network types, as "capa_mask" and "capa_val" no longer work correctly (the search must be band-aware now.) The remaining bits in "capa_mask" and "capa_val" are used only for privacy matching so replace those two with a privacy enum as well. Signed-off-by: Dedy Lansky <dlansky@codeaurora.org> [rewrite commit log, tiny fixes] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-11cfg80211/mac80211: add wmm info to assoc eventEliad Peller1-2/+2
Userspace might need to know what queues are configured for uapsd (e.g. for setting proper default values in tspecs). Add this bitmap to the association event (inside wmm nested attribute) Add additional parameter to cfg80211_rx_assoc_resp, and update its callers. Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-08-26cfg80211: remove @gfp parameter from cfg80211_rx_mgmt()Vladimir Kondratiev1-2/+2
In the cfg80211_rx_mgmt(), parameter @gfp was used for the memory allocation. But, memory get allocated under spin_lock_bh(), this implies atomic context. So, one can't use GFP_KERNEL, only variants with no __GFP_WAIT. Actually, in all occurrences GFP_ATOMIC is used (wil6210 use GFP_KERNEL by mistake), and it should be this way or warning triggered in the memory allocation code. Remove @gfp parameter as no actual choice exist, and use hard coded GFP_ATOMIC for memory allocation. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-25cfg80211: change wiphy_to_dev function nameZhao, Gang1-12/+12
Name wiphy_to_rdev is more accurate to describe what the function does, i.e., return a pointer pointing to struct cfg80211_registered_device. Signed-off-by: Zhao, Gang <gamerh2o@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-09cfg80211/mac80211: move interface counting for combination check to mac80211Luciano Coelho1-13/+1
Move the counting part of the interface combination check from cfg80211 to mac80211. This is needed to simplify locking when the driver has to perform a combination check by itself (eg. with channel-switch). Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-02-25cfg80211: DFS get CAC time from regulatory databaseJanusz Dziedzic1-1/+1
Send Channel Availability Check time as a parameter of start_radar_detection() callback. Get CAC time from regulatory database. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-02-05cfg80211: consider existing DFS interfacesMichal Kazior1-1/+1
It was possible to break interface combinations in the following way: combo 1: iftype = AP, num_ifaces = 2, num_chans = 2, combo 2: iftype = AP, num_ifaces = 1, num_chans = 1, radar = HT20 With the above interface combinations it was possible to: step 1. start AP on DFS channel by matching combo 2 step 2. start AP on non-DFS channel by matching combo 1 This was possible beacuse (step 2) did not consider if other interfaces require radar detection. The patch changes how cfg80211 tracks channels - instead of channel itself now a complete chandef is stored. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-12-02cfg80211: aggregate mgmt_tx parameters into a structAndrei Otcheretianski1-8/+4
Change cfg80211 and mac80211 to use cfg80211_mgmt_tx_params struct to aggregate parameters for mgmt_tx functions. This makes the functions' signatures less clumsy and allows less painful parameters extension. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> [fix all other drivers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-11-25cfg80211/mac80211: DFS setup chandef for cac eventJanusz Dziedzic1-5/+3
To report channel width correctly we have to send correct channel parameters from mac80211 when calling cfg80211_cac_event(). This is required in case of using channel width higher than 20MHz and we have to set correct dfs channel state after CAC (NL80211_DFS_AVAILABLE). Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-21cfg80211: update dfs_state_entered upon dfs_state changeMichal Kazior1-0/+2
The timestamp wasn't updated after transitioning to the NL80211_DFS_USABLE state after NOP time. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-21cfg80211: fix DFS channel recovery timeoutMichal Kazior1-2/+2
The timeout was not properly converted from msecs to jiffies. As a result channel transition to NL80211_DFS_USABLE was delayed depending on CONFIG_HZ configuration, e.g. HZ=100 would delay the NOP from 30 minutes to 300 minutes. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-23cfg80211: add flags to cfg80211_rx_mgmt()Vladimir Kondratiev1-2/+2
Add flags intended to report various auxiliary information and introduce the NL80211_RXMGMT_FLAG_ANSWERED flag to report that the frame was already answered by the device. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> [REPLIED->ANSWERED, reword commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-19cfg80211: hold BSS over association processJohannes Berg1-0/+4
This fixes the potential issue that the BSS struct that we use and later assign to wdev->current_bss is removed from the scan list while associating. Also warn when we don't have a BSS struct in connect_result unless it's from a driver that only has the connect() API. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-19cfg80211: require passing BSS struct back to cfg80211_assoc_timeoutJohannes Berg1-3/+5
Doing so will allow us to hold the BSS (not just ref it) over the association process, thus ensuring that it doesn't time out and gets invisible to the user (e.g. in 'iw wlan0 link'.) This also fixes a leak in mac80211 where it doesn't always release the BSS struct properly in all cases where calling this function. This leak was reported by Ben Greear. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-04cfg80211: separate internal SME implementationJohannes Berg1-131/+60
The current internal SME implementation in cfg80211 is very mixed up with the MLME handling, which has been causing issues for a long time. There are three things that the implementation has to provide: * a basic SME implementation for nl80211's connect() call (for drivers implementing auth/assoc, which is really just mac80211) and wireless extensions * MLME events for the userspace SME * SME events (connected, disconnected etc.) for all different SME implementation possibilities (driver, cfg80211 and userspace) To achieve these goals it isn't necessary to track the software SME's connection status outside of it's state (which is the part that caused many issues.) Instead, track it only in the SME data (wdev->conn) and in the general case only track whether the wdev is connected or not (via wdev->current_bss.) Also separate the internal implementation to not have callbacks from the SME events, but rather call it from the API functions that the driver (or rather mac80211) calls. This separates the code better. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-04cfg80211/mac80211: clean up cfg80211 SME APIsJohannes Berg1-32/+54
Do some cleanups in the cfg80211 SME APIs, which are only used by mac80211. Most of these functions get a frame passed, and there isn't really any reason to export multiple functions as cfg80211 can check the frame type instead, do that. Additionally, the API functions have confusing names like cfg80211_send_...() which was meant to indicate that it sends an event to userspace, but gets a bit confusing when there's both TX and RX and they're not all clearly labeled. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-25cfg80211: remove some locked wrappers from mlme APIJohannes Berg1-97/+23
By making all the API functions require wdev locking we can clean up the API a bit, getting rid of the locking version of each function. This also decreases the size of cfg80211 by a small amount. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-25cfg80211/mac80211: use cfg80211 wdev mutex in mac80211Johannes Berg1-40/+8
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 <johannes.berg@intel.com>
2013-05-25cfg80211: vastly simplify lockingJohannes Berg1-6/+6
Virtually all code paths in cfg80211 already (need to) hold the RTNL. As such, there's little point in having another four mutexes for various parts of the code, they just cause lock ordering issues (and much of the time, the RTNL and a few of the others need thus be held.) Simplify all this by getting rid of the extra four mutexes and just use the RTNL throughout. Only a few code changes were needed to do this and we can get rid of a work struct for bonus points. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-17cfg80211: use C99 initialisers to simplify code a bitJohannes Berg1-24/+20
Use C99 initialisers for the auth, deauth and disassoc requests to simplify the code. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-22cfg80211: introduce critical protocol indication from user-spaceArend van Spriel1-0/+5
Some protocols need a more reliable connection to complete successful in reasonable time. This patch adds a user-space API to indicate the wireless driver that a critical protocol is about to commence and when it is done, using nl80211 primitives NL80211_CMD_CRIT_PROTOCOL_START and NL80211_CRIT_PROTOCOL_STOP. There can be only on critical protocol session started per registered cfg80211 device. The driver can support this by implementing the cfg80211 callbacks .crit_proto_start() and .crit_proto_stop(). Examples of protocols that can benefit from this are DHCP, EAPOL, APIPA. Exactly how the link can/should be made more reliable is up to the driver. Things to consider are avoid scanning, no multi-channel operations, and alter coexistence schemes. Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06cfg80211: refactor association parametersJohannes Berg1-48/+16
cfg80211_mlme_assoc() has grown far too many arguments, make the caller build almost all of the driver struct and pass that to the function instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06cfg80211: add ability to override VHT capabilitiesJohannes Berg1-3/+32
For testing it's sometimes useful to be able to override certain VHT capability advertisement, add the ability to do that in cfg80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06cfg80211: move exported event functions into nl80211Johannes Berg1-159/+0
This is the sort of thing gcc's LTO could do, but since we don't have that yet we can also do it manually. The advantage is reduced code, both source and binary, e.g. on x86-64 text data bss dec hex filename 442825 56230 776 499831 7a077 cfg80211.ko (before) 441585 56230 776 498591 79b9f cfg80211.ko (after) a reduction of ~1k. But in order to not complicate the code move only those functions that are simple wrappers, not those that have functionality of their own. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15nl80211/cfg80211: add radar detection command/eventSimon Wunderlich1-0/+120
Add new NL80211_CMD_RADAR_DETECT, which starts the Channel Availability Check (CAC). This command will also notify the usermode about events (CAC finished, CAC aborted, radar detected, NOP finished). Once radar detection has started it should continuously monitor for radars as long as the channel is active. This patch enables DFS for AP mode in nl80211/cfg80211. Based on original patch by Victor Goldenshtein <victorg@ti.com> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> [remove WIPHY_FLAG_HAS_RADAR_DETECT again -- my mistake] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-11cfg80211: pass wiphy to cfg80211_ref_bss/put_bssJohannes Berg1-7/+7
This prepares for using the spinlock instead of krefs which is needed in the next patch to track the refs of combined BSSes correctly. Acked-by: Bing Zhao <bzhao@marvell.com> [mwifiex] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-29cfg80211: add SME state to warning in __cfg80211_mlme_disassocJohannes Berg1-1/+1
The warning here occasionally triggers but we haven't found the cause yet. It's a valid warning since if it triggers the SME state got confused, so add the SME state to it to help narrow it down in the future. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03cfg80211: move some AP code to right fileJohannes Berg1-62/+0
Some AP code ended up in mlme.c as ap.c didn't exist when it was written, move it now. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26cfg80211: pass a channel definition structJohannes Berg1-10/+5
Instead of passing a channel pointer and channel type to all functions and driver methods, pass a new channel definition struct. Right now, this struct contains just the control channel and channel type, but for VHT this will change. Also, add a small inline cfg80211_get_chandef_type() so that drivers don't need to use the _type field of the new structure all the time, which will change. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26cfg80211: remove remain-on-channel channel typeJohannes Berg1-15/+6
As mwifiex (and mac80211 in the software case) are the only drivers actually implementing remain-on-channel with channel type, userspace can't be relying on it. This is the case, as it's used only for P2P operations right now. Rather than adding a flag to tell userspace whether or not it can actually rely on it, simplify all the code by removing the ability to use different channel types. Leave only the validation of the attribute, so that if we extend it again later (with the needed capability flag), it can't break userspace sending invalid data. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-23Merge branch 'master' of ↵John W. Linville1-9/+3
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c net/mac80211/mlme.c
2012-10-18cfg80211: add cfg80211 exported function tracingBeni Lev1-7/+48
Also add tracing to the API functions that drivers (and mac80211) can call in cfg80211. Signed-off-by: Beni Lev <beni.lev@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-18cfg80211: add wrappers for registered_device_opsHila Gonen1-12/+14
This will allow adding central tracing like in mac80211. Signed-off-by: Hila Gonen <hila.gonen@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17cfg80211: Allow user space to specify non-IEs to SAE AuthenticationJouni Malinen1-3/+8
SAE extends Authentication frames with fields that are not information elements. NL80211_ATTR_IE is not suitable for these, so introduce a new attribute that can be used to specify the fields needed for SAE in station mode. Signed-off-by: Jouni Malinen <j@w1.fi> [change to verify that SAE is only used with authenticate command] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-15cfg80211/mac80211: avoid state mishmash on deauthStanislaw Gruszka1-9/+3
Avoid situation when we are on associate state in mac80211 and on disassociate state in cfg80211. This can results on crash during modules unload (like showed on this thread: http://marc.info/?t=134373976300001&r=1&w=2) and possibly other problems. Reported-by: Pedro Francisco <pedrogfrancisco@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-28Merge branch 'master' of ↵John W. Linville1-0/+11
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: net/nfc/netlink.c Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-18cfg80211/nl80211: Notify connection request failure in AP modePandiyarajan Pitchaimuthu1-0/+11
In AP mode, when a station requests connection to an AP and if the request is failed for particular reason, userspace is notified about the failure through NL80211_CMD_CONN_FAILED command. Reason for the failure is sent through the attribute NL80211_ATTR_CONN_FAILED_REASON. Signed-off-by: Pandiyarajan Pitchaimuthu <c_ppitch@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-10netlink: Rename pid to portid to avoid confusionEric W. Biederman1-8/+8
It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-20cfg80211: add P2P Device abstractionJohannes Berg1-3/+7
In order to support using a different MAC address for the P2P Device address we must first have a P2P Device abstraction that can be assigned a MAC address. This abstraction will also be useful to support offloading P2P operations to the device, e.g. periodic listen for discoverability. Currently, the driver is responsible for assigning a MAC address to the P2P Device, but this could be changed by allowing a MAC address to be given to the NEW_INTERFACE command. As it has no associated netdev, a P2P Device can only be identified by its wdev identifier but the previous patches allowed using the wdev identifier in various APIs, e.g. remain-on-channel. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-17cfg80211: support TX error rate CQMThomas Pedersen1-0/+13
Let the user configure serveral TX error conection quality monitoring parameters: % error rate, survey interval, and # of attempted packets. On exceeding the TX failure rate over the given interval, the driver will send a CQM notify event with the actual TX failure rate and packets attempted. Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-09cfg80211: use wdev in mgmt-tx/ROC APIsJohannes Berg1-19/+15
The management frame and remain-on-channel APIs will be needed in the P2P device abstraction, so move them over to the new wdev-based APIs. Userspace can still use both the interface index and wdev identifier for them so it's backward compatible, but for the P2P Device wdev it will be able to use the wdev identifier only. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-29cfg80211: respect iface combinations when starting operationMichal Kazior1-0/+16
devlist_mtx locking is changed to accomodate changes. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-29cfg80211: add channel tracking for AP and meshMichal Kazior1-0/+1
We need to know which channel is used by a running AP and mesh for channel context accounting and finding matching/active interface combination. STA/IBSS have current_bss already which allows us to check which channel a vif is tuned to. Non-fixed channel IBSS can be handled with additional changes. Monitor mode is going to be handled differently. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-06cfg80211: clarify set_channel APIsJohannes Berg1-2/+0
Now that we've removed all uses of the set_channel API except for the monitor channel and in libertas, clarify this. Split the libertas mesh use into a new libertas_set_mesh_channel() operation, just to keep backward compatibility, and rename the normal set_channel() to set_monitor_channel(). Also describe the desired set_monitor_channel() semantics more clearly. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-10wireless: Convert compare_ether_addr to ether_addr_equalJoe Perches1-16/+15
Use the new bool function ether_addr_equal to add some clarity and reduce the likelihood for misuse of compare_ether_addr for sorting. I removed a conversion from scan.c/cmp_bss_core that appears to be a sorting function. Done via cocci script: $ cat compare_ether_addr.cocci @@ expression a,b; @@ - !compare_ether_addr(a, b) + ether_addr_equal(a, b) @@ expression a,b; @@ - compare_ether_addr(a, b) + !ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) == 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) != 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) == 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) != 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !!ether_addr_equal(a, b) + ether_addr_equal(a, b) Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-12cfg80211: add channel switch notify eventThomas Pedersen1-0/+27
The firmware may decide to switch channels while already beaconing, e.g. in response to a cfg80211 connect request on a different vif. Add this event to notify userspace when an AP or GO interface has successfully migrated to a new channel, so it can update its configuration accordingly. Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-10cfg80211: use compare_ether_addr on MAC addresses instead of memcmpFelix Fietkau1-15/+17
Because of the constant size and guaranteed 16 bit alignment, the inline compare_ether_addr function is much cheaper than calling memcmp. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-16 17:43:22 +0300