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2014-11-12Bluetooth: Fix l2cap_sock_teardown_cb lockdep warningJohan Hedberg1-1/+1
Any code calling bt_accept_dequeue() to get a new child socket from a server socket should use lock_sock_nested to avoid lockdep warnings due to the parent and child sockets being locked at the same time. The l2cap_sock_accept() function is already doing this correctly but a second place calling bt_accept_dequeue() is the code path from l2cap_sock_teardown_cb() that calls l2cap_sock_cleanup_listen(). This patch fixes the proper nested locking annotation and thereby avoids the following style of lockdep warning. [ +0.000224] [ INFO: possible recursive locking detected ] [ +0.000222] 3.17.0+ #1153 Not tainted [ +0.000130] --------------------------------------------- [ +0.000227] l2cap-tester/562 is trying to acquire lock: [ +0.000210] (sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP){+.+...}, at: [<c1393f47>] bt_accept_dequeue+0x68/0x11b [ +0.000467] but task is already holding lock: [ +0.000186] (sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP){+.+...}, at: [<c13b949a>] lock_sock+0xa/0xc [ +0.000421] other info that might help us debug this: [ +0.000199] Possible unsafe locking scenario: [ +0.000117] CPU0 [ +0.000000] ---- [ +0.000000] lock(sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP); [ +0.000000] lock(sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP); [ +0.000000] *** DEADLOCK *** Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ieee820154: add lbt setting supportAlexander Aring4-0/+50
This patch adds support for setting listen before transmit mode via nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12at86rf230: remove invalid max frame retries checkAlexander Aring1-3/+0
This patch removes the invalid max frame retries check from driver layer. This is already handled by nl802154 framework. Also the IEEE 802.15.4 standard doesn't allow a frame retries setting above 7. This seems to be valid for the at86rf230 transceiver but the chip running out of spec then. We only allow settings according 802.15.4 right now. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ieee820154: add max frame retries setting supportAlexander Aring4-0/+60
This patch add support for setting mac frame retries setting via nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12at86rf230: remove invalid max csma backoffs checkAlexander Aring1-3/+0
This patch removes the invalid check on max csma backoffs in driver layer. This is already handled by nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ieee820154: add max csma backoffs setting supportAlexander Aring4-0/+61
This patch add support for max csma backoffs setting via nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12at86rf230: remove invalid backoff exponent checkAlexander Aring1-1/+1
This patch removes the invalid backoff exponent check from driver layer. This is already handled by nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ieee820154: add backoff exponent setting supportAlexander Aring4-0/+64
This patch adds support for setting backoff exponents via nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ieee820154: add short_addr setting supportAlexander Aring5-0/+68
This patch adds support for setting short address via nl802154 framework. Also added a comment because a 0xffff seems to be valid address that we don't have a short address. This is a valid setting but we need more checks in upper layers to don't allow this address as source address. Also the current netlink interface doesn't allow to set the short_addr to 0xffff. Same for the 0xfffe short address which describes a not allocated short address. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ieee820154: add pan_id setting supportAlexander Aring5-0/+62
This patch adds support for setting pan_id via nl802154 framework. Adding a comment because setting 0xffff as pan_id seems to be valid setting. The pan_id 0xffff as source pan is invalid. I am not sure now about this setting but for the current netlink interface this is an invalid setting, so we do the same now. Maybe we need to change that when we have coordinator support and association support. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ieee820154: remove valid page and channel checksAlexander Aring2-16/+1
This patch removes validation of page and channel while setting from driver layer. This is already handled by nl802154 and mac802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ieee820154: add channel set supportAlexander Aring4-0/+60
This patch adds page and channel setting support to nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ieee802154: cleanup cfg802154 intendationAlexander Aring1-2/+2
This is patch is cleanup to have a similar indentation like cfg80211 implementation. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12mac802154: add ifname change notifierAlexander Aring3-0/+53
This patch adds a netdev notifier for interface renaming. We have a name attribute inside of subif data struct. This is needed to have always the actual netdev name in sdata name attribute. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12mac802154: change module descriptionAlexander Aring1-1/+1
This patch changes the module description like wireless which is IEEE 802.11 "subsystem" and not "implementation". Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12mac802154: add wpan_phy priv idAlexander Aring4-0/+16
This patch adds an unique id for an wpan_phy. This behaviour is mostly grabbed from wireless stack. This is needed for upcomming patches which identify the wpan netdev while NETDEV_CHANGENAME in netdev notify function. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12mac820154: move mutex locks out of loopAlexander Aring1-2/+2
Instead of always re-lock the iflist_mtx at multiple interfaces we lock the complete for each loop at start and at the end. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12mac820154: rename sdata next to tmpAlexander Aring1-2/+2
This patch is just a cleanup to name the temporary variable for protected list for each loop as tmp. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12mac820154: move interface unregistration into ifaceAlexander Aring3-8/+15
This patch move the iface unregistration into iface.c file to have a behaviour which is similar like mac80211. Also iface handling should be inside iface.c file only. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-11-12ath9k_htc: remove return of value in empty definintion of ath9k_htc_deinit_debugJohn W. Linville1-1/+3
Cc: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12mwifiex: simplify ad hoc join capability infoJames Cameron1-3/+1
While preparing an ad-hoc start command, the capability info bitmap is needlessly set from the command, and then the ESS bit cleared. Change to set the bitmap directly without reference to the command. Signed-off-by: James Cameron <quozl@laptop.org> Acked-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12wlcore: make wlcore_cmd_send_failsafe() staticLuciano Coelho2-5/+4
The wlcore_cmd_send_failsafe() function is only called in the cmd.c file, where it is definde. Make it static. Additionally, move the EXPORT_SYMBOL macro for wl1271_cmd_send() to the right place. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12wlcore: check minimum buffer size in some cmd_send functionsLuciano Coelho1-0/+6
Check for the minimum required buffer length in wlcore_cmd_send() and wlcore_cmd_configure_failsafe. This ensures that we will never try to use a buffer that is smaller than the required header. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12mwifiex: fix version display problem on big endian platformsAmitkumar Karwar1-2/+2
It's been observed that wrong firmware version (ex. 66.14.96.p9 instead of 14.66.9.p96) is displayed on big endian platforms. The problem is fixed here. Reported-by: Daniel Mosquera <daniel.mosquera@ctag.com> Tested-by: Daniel Mosquera <daniel.mosquera@ctag.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k_htc: add spectral scan debug interfaceOleksij Rempel3-0/+9
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k_htc: process rx spectral packetsOleksij Rempel1-0/+14
use code provided by Ashish Patro <patro@cs.wisc.edu> Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k_htc: trigger spectral scan on set_channelOleksij Rempel1-0/+4
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k_htc: set initial spec_config valuesOleksij Rempel1-0/+8
use values provided by Ashish Patro <patro@cs.wisc.edu> Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k_htc: add struct ath_spec_scan_priv to ath9k_htc_privOleksij Rempel1-0/+1
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k_htc: add ath_ps_ops bindingsOleksij Rempel1-0/+16
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k_htc: fix rs_datalen conversationOleksij Rempel1-1/+1
For some reason it didn't coused obvious problems. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: For AR9271 chipsets, set count = 0 for endless samples.Oleksij Rempel1-3/+6
not sure why. Initially provided by Ashish Patro <patro@cs.wisc.edu> Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: move spectral.* to common-spectral.*Oleksij Rempel8-25/+31
and rename exports from ath9k_spectral_* to ath9k_cmn_spectral_* Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: move ath9k_spectral_scan_ from main.c to spectral.cOleksij Rempel2-70/+70
Now we should be ready to make this code common. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: make ath9k_spectral_scan_ do not depend on ath_softcOleksij Rempel4-20/+22
last preparation before moving ath9k_spectral_scan_ to spectral.c Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: use ath_common instead of ieee80211_hw in ath9k_spectral_scan_Oleksij Rempel4-15/+13
we don't have here any ieee80211_hw dependencies any way. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: use ath_ps_ops in ath9k_spectral_scan_Oleksij Rempel1-4/+4
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: add ath_ps_ops bindingsOleksij Rempel1-0/+16
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath: add struct ath_ps_opsOleksij Rempel1-0/+11
we will need it to make common code Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: remove all struct ath_softc dependencies from spectral codeOleksij Rempel4-50/+51
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: add ath_hw to ath_spec_scan_privOleksij Rempel2-0/+2
spectral code mostly depends on ath_hw, not on ath_softc Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: use struct dentry by ath9k_spectral_init_debugOleksij Rempel3-9/+9
this will alow us to make ath_softc independent code. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: move spec_config to ath_spec_scan_privOleksij Rempel5-22/+23
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: move spectral_mode to ath_spec_scan_privOleksij Rempel5-5/+5
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12ath9k: add struct ath_spec_scan_privOleksij Rempel3-7/+10
and move rfs_chan_spec_scan to this struct. We will need it for common spectral scan code. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12mwifiex: fix warning while starting BSSAvinash Patil1-1/+1
We see this warning while starting mwifiex AP: Unsupported RX-STBC, default to 2x2 This was happening because of wrong offset while copying HT capabilities from BSS configuration of start_ap handler. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12mwifiex: do not setup AMPDU/AMSDU with broadcast receiverAvinash Patil1-0/+4
It is observed that device sometimes sends BA setup requests for broadcast mac address. This patch adds a check to avoid checking availability of AMPDU/AMSDU streams for broadcast mac address. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12mwifiex: fix out of memory issue observed for USB chipsetsAmitkumar Karwar3-1/+25
On some platforms, system goes out of memory during heavy Rx traffic with our USB chipsets. In case of SDIO/PCIe, after receiving 50 packets in Rx queue we stop processing interrupts till packets pending fall below low threshold i.e 20. We don't have similar logic for USB, so if host platform is slow, we would hit a case where firmware keeps on pushing packets at high speed than driver/kernel can process. We will stop submitting URBs for Rx data when pending packet count reaches high threshold and restart them when enough packets are consumed to solve the problem. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=85071 Reported-by: Marek Belisko <marek.belisko@gmail.com> Tested-by: Marek Belisko <marek.belisko@gmail.com> Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Cathy Luo <cluo@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12mwifiex: remove data_complete handlerAvinash Patil3-11/+0
This patch removes redundant data complete handler. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Cathy Luo <cluo@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12mwifiex: rx workqueue support for USB interfaceAvinash Patil4-32/+5
This patch adds RX workqueue support for USB interfaces. Currently rx_pending is applicable for cmd/events and Rx data in USB interface. Let's use it only for Rx data. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Cathy Luo <cluo@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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