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* bpf: Use mount_nodev not mount_ns to mount the bpf filesystemEric W. Biederman2016-05-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While reviewing the filesystems that set FS_USERNS_MOUNT I spotted the bpf filesystem. Looking at the code I saw a broken usage of mount_ns with current->nsproxy->mnt_ns. As the code does not acquire a reference to the mount namespace it can not possibly be correct to store the mount namespace on the superblock as it does. Replace mount_ns with mount_nodev so that each mount of the bpf filesystem returns a distinct instance, and the code is not buggy. In discussion with Hannes Frederic Sowa it was reported that the use of mount_ns was an attempt to have one bpf instance per mount namespace, in an attempt to keep resources that pin resources from hiding. That intent simply does not work, the vfs is not built to allow that kind of behavior. Which means that the bpf filesystem really is buggy both semantically and in it's implemenation as it does not nor can it implement the original intent. This change is userspace visible, but my experience with similar filesystems leads me to believe nothing will break with a model of each mount of the bpf filesystem is distinct from all others. Fixes: b2197755b263 ("bpf: add support for persistent maps/progs") Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'wireless-drivers-next-for-davem-2016-05-13' of ↵David S. Miller2016-05-2095-4766/+6751
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers patches for 4.7 Major changes: iwlwifi * remove IWLWIFI_DEBUG_EXPERIMENTAL_UCODE kconfig option * work for RX multiqueue continues * dynamic queue allocation work continues * add Luca as maintainer * a bunch of fixes and improvements all over brcmfmac * add 4356 sdio support ath6kl * add ability to set debug uart baud rate with a module parameter wil6210 * add debugfs file to configure firmware led functionality ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge ath-next from ath.gitKalle Valo2016-05-1124-145/+767
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ath.git patches for 4.7. Major changes: ath6kl * add ability to set debug uart baud rate with a module parameter wil6210 * add debugfs file to configure firmware led functionality
| | * ath10k: Fix survey reporting with QCA4019Vasanthakumar Thiagarajan2016-05-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In QCA4019, cycle counter wraparound in same fashion as QCA988X. When the cycle counter wraparound it resets to 0x7fffffff. Set has_shifted_cc_wraparound to true for QCA4019 to enable the code path to handle cycle counter wraparound for consistent survey report. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: suppress warnings when getting wmi peer_rate_code_list eventVasanthakumar Thiagarajan2016-05-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In 10.4, fw sends WMI PEER_RATECODE_LIST_EVENTID after successful peer_assoc cmd. As of now this event is not of much use and not implemented. Change the debug level and messsage as appropriate to suppress "Unknown eventid: 36898". Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * wil6210: add support for device led configurationMaya Erez2016-05-115-0/+281
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the ability to configure the device led to be used for notifying the AP activity (60G device supports leds 0-2). The host can also configure the blinking frequency of the led in three states. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath9k: Fix symbol overlap window for half/quarter channelsHelmut Schaa2016-05-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit cd6cfd7311a385144a2f9c74f692ae2df3ae033f "ath9k: do not set half/quarter channel flags in AR_PHY_MODE" the condition "rfMode & (AR_PHY_MODE_QUARTER | AR_PHY_MODE_HALF)" would never evaluate to true. Fix this by using the available IS_CHAN_HALF_RATE and IS_CHAN_QUARTER_RATE marcros instead. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Cc: Felix Fietkau <nbd@openwrt.org> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath9k: Simplify ar9003_hw_tx99_set_txpowerHelmut Schaa2016-05-091-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | There's no need to keep the same for loop twice in the code. Move the txpower cap before the loop to reduce code complexity. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath9k: Move TX99 config option under ath9k debuggingHelmut Schaa2016-05-091-20/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | Since ATH9K_TX99 depends on ATH9K_DEBUGFS anyway move it there such that "make menuconfig" will indent TX99 support below ath9k debugging. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath9k: reuse ar9003_hw_tx_power_regwrite for tx99 setupHelmut Schaa2016-05-093-58/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | The same functionality as ar9003_hw_tx_power_regwrite is hardcoded in ar9003_hw_tx99_set_txpower. Just reuse the existing ar9003_hw_tx_power_regwrite for TX99 setup too. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: release pre_cal_file while unloading driverRajkumar Manoharan2016-05-061-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | Failing to release pre_cal_file caldata on deinit causes memory leak. Fixes: b131129d9657 ("ath10k: fix calibration init sequence of qca99x0") Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: update bss channel survey informationRajkumar Manoharan2016-05-064-0/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During hw scan, firmware sends two channel information events (pre- complete, complete) to host for each channel change. The snap shot of cycle counters (rx_clear and total) between these two events are given for survey dump. In order to get latest survey statistics of all channels, a scan request has to be issued. In general, an AP DUT is brought up, it won't leave BSS channel except few cases like overlapping bss or radar detection. So survey statistics of bss channel is always referring to older data that are collected before starting AP (either ACS/OBSS scan). To collect latest survey information from target, firmware provides WMI interface to read cycle counters from hardware. For each survey dump request, BSS channel cycle counters are read and cleared in hardware. This makes sure that behavior is in align with ath9k survey report. So survey dump always gives snap shot of cycle counters b/w two survey requests. Signed-off-by: Yanbo Li <yanbol@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: handle pdev_chan_info wmi eventRajkumar Manoharan2016-05-062-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | Add handler to process bss channel information wmi event that will be received upon sending pdev_chan_info_request wmi command. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: implement wmi_pdev_bss_chan_info_requestRajkumar Manoharan2016-05-063-1/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add WMI ops to send pdev_bss_chan_info_request command to target. This command will be used to retrieve updated cycle counters and noise floor value of current operating channel (bss channel). Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: add pdev bss channel info wmi definitionsRajkumar Manoharan2016-05-061-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | Add WMI definitions for pdev bss channel information request and event. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: fix kernel panic, move arvifs list head init before htt initAnilkumar Kolli2016-05-061-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is observed that while loading and unloading ath10k modules in an infinite loop, before ath10k_core_start() completion HTT rx frames are received, while processing these frames, dereferencing the arvifs list code is getting hit before initilizing the arvifs list, causing a kernel panic. This patch initilizes the arvifs list before initilizing htt. Fixes the below issue: [<bf88b058>] (ath10k_htt_rx_pktlog_completion_handler+0x278/0xd08 [ath10k_core]) [<bf88b058>] (ath10k_htt_rx_pktlog_completion_handler [ath10k_core]) [<bf88c0dc>] (ath10k_htt_txrx_compl_task+0x5f4/0xeb0 [ath10k_core]) [<bf88c0dc>] (ath10k_htt_txrx_compl_task [ath10k_core]) [<c0234100>] (tasklet_action+0x8c/0xec) [<c0234100>] (tasklet_action) [<c02337c0>] (__do_softirq+0xf8/0x228) [<c02337c0>] (__do_softirq) [<c0233920>] (run_ksoftirqd+0x30/0x90) Code: e5954ad8 e2899008 e1540009 0a00000d (e5943008) ---[ end trace 71de5c2e011dbf56 ]--- Kernel panic - not syncing: Fatal exception in interrupt Fixes: 500ff9f9389d ("ath10k: implement chanctx API") Cc: <stable@vger.kernel.org> Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: move spectral related structures under ath10k debugfsMohammed Shafi Shajakhan2016-05-061-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Spectral related structures are accessed / modified only if ath10k debugfs is enabled, so it makes more sense to move them under ATH10K_DEBUGFS Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: remove VHT capabilities from 2.4GHzJohannes Berg2016-05-061-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the spec, VHT doesn't exist in 2.4GHz. There are vendor extensions to allow a subset of VHT to work (notably 256-QAM), but since mac80211 doesn't support those advertising VHT capability on 2.4GHz leads to the behaviour of reporting VHT capabilities but not being able to use any of them due to mac80211's code requiring 80 MHz support. Remove the VHT capabilities from 2.4GHz for now. If mac80211 gets extended to use the (likely Broadcom) vendor IEs for it and handles the lack of 80 MHz support, it can be added back. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * wcn36xx: Set SMD timeout to 10 secondsBjorn Andersson2016-04-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After booting the wireless subsystem and uploading the NV blob to the WCNSS_CTRL service the remote continues to do things and will not start servicing wlan-requests for another 2-5 seconds (measured). The downstream code does not have any special handling for this case, but has a timeout of 10 seconds for the communication layer. By extending the wcn36xx timeout to match this we follows the same flow for the boot procedure and can successfully configure WiFi as wlan0 is registered. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * wil6210: prevent deep sleep of 60G device in critical pathsMaya Erez2016-04-265-32/+194
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In idle times 60G device can enter deep sleep and turn off its XTAL clock. Host access triggers the device power-up flow which will hold the AHB during XTAL stabilization until device switches from slow-clock to XTAL clock. This behavior can stall the PCIe bus for some arbitrary period of time. In order to prevent this stall, host can vote for High Latency Access Policy (HALP) before reading from PCIe bus. This vote will wakeup the device from deep sleep and prevent deep sleep until unvote is done. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * wil6210: unmask RX_HTRSH interrupt only when connectedMaya Erez2016-04-262-1/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RX_HTRSH interrupt sometimes triggered during device reset procedure. To prevent handling this interrupt when not required, unmask this interrupt only if we are connected and mask it when disconnected. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * wil6210: print debug message when transmitting while disconnectedMaya Erez2016-04-263-1/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Network stack can try to transmit data while AP / STA is disconnected. Change this print-out to debug level as this should not be handled as error. This patch also adds wil_dbg_ratelimited, used to limit the above print-out. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * wil6210: change RX_HTRSH interrupt print level to debugMaya Erez2016-04-261-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using interrupt moderation RX_HTRSH interrupt can occur frequently during high throughput and should not be considered as error. Such print-outs can degrade the performance hence should be printed in debug print level. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * wil6210: support regular scan on P2P_DEVICE interfaceLior David2016-04-263-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | P2P search can only run on the social channel (channel 2). When issuing a scan request on the P2P_DEVICE interface, driver ignored the channels argument and always performed a P2P search. Fix this by checking the channels argument, if it is not specified (meaning full scan) or if a non-social channel was specified, perform a regular scan and not a P2P search. Signed-off-by: Lior David <qca_liord@qca.qualcomm.com> Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * wil6210: add function name to wil log macrosMaya Erez2016-04-262-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | Add __func__ to wil_err and wil_info for easier debugging. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath6kl: add ability to set debug uart baud rateSteve deRosier2016-04-263-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | It's useful to permit the customization of the debug uart baud rate. Enable this and send down the value to the chip if we're enabling debug. Signed-off-by: Steve deRosier <steve.derosier@lairdtech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath6kl: fix missing uart debug pin for 6004 HW 3.0Steve deRosier2016-04-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | For some reason, the 6004 HW 3.0 definition was missing the value for the uarttx_pin (used for firmware debug). This corrects this situation. Signed-off-by: Steve deRosier <steve.derosier@lairdtech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: fix a typo in ath10k_start()Mohammed Shafi Shajakhan2016-04-261-1/+1
| | | | | | | | | | | | | | | | | | | | | fix a typo (spelling mistake) in 'ath10k_start' Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * ath10k: add max_tx_power for QCA6174 WLAN.RM.2.0 firmwareAlan Liu2016-04-262-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | QCA6174 WLAN.RM.2.0 firmware uses max_tx_power instead of using max_reg_power to set transmission power. The tx power was about -50dbm, after applying this change, it become -32dbm. Signed-off-by: Alan Liu <alanliu@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| * | atmel: potential underflow in atmel_set_freq()Dan Carpenter2016-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Smatch complains that we cap the upper bound of "fwrq->m" but not the lower bound. I don't know if it can actually happen but it's simple enough to check for negatives. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | airo: prevent potential underflow in airo_set_freq()Dan Carpenter2016-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | I'm not sure if this can underflow but Smatch complains. It seems harmless to add a check for negatives. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: fixup error messagesWei-Ning Huang2016-05-111-2/+3
| | | | | | | | | | | | | | | | | | | | | Use dev_err instead of pr_err and add newline character at the end. Signed-off-by: Wei-Ning Huang <wnhuang@chromium.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | rtlwifi: pci: use dev_kfree_skb_irq instead of kfree_skb in ↵wang yanqing2016-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rtl_pci_reset_trx_ring We can't use kfree_skb in irq disable context, because spin_lock_irqsave make sure we are always in irq disable context, use dev_kfree_skb_irq instead of kfree_skb is better than dev_kfree_skb_any. This patch fix below kernel warning: [ 7612.095528] ------------[ cut here ]------------ [ 7612.095546] WARNING: CPU: 3 PID: 4460 at kernel/softirq.c:150 __local_bh_enable_ip+0x58/0x80() [ 7612.095550] Modules linked in: rtl8723be x86_pkg_temp_thermal btcoexist rtl_pci rtlwifi rtl8723_common [ 7612.095567] CPU: 3 PID: 4460 Comm: ifconfig Tainted: G W 4.4.0+ #4 [ 7612.095570] Hardware name: LENOVO 20DFA04FCD/20DFA04FCD, BIOS J5ET48WW (1.19 ) 08/27/2015 [ 7612.095574] 00000000 00000000 da37fc70 c12ce7c5 00000000 da37fca0 c104cc59 c19d4454 [ 7612.095584] 00000003 0000116c c19d4784 00000096 c10508a8 c10508a8 00000200 c1b42400 [ 7612.095594] f29be780 da37fcb0 c104ccad 00000009 00000000 da37fcbc c10508a8 f21f08b8 [ 7612.095604] Call Trace: [ 7612.095614] [<c12ce7c5>] dump_stack+0x41/0x5c [ 7612.095620] [<c104cc59>] warn_slowpath_common+0x89/0xc0 [ 7612.095628] [<c10508a8>] ? __local_bh_enable_ip+0x58/0x80 [ 7612.095634] [<c10508a8>] ? __local_bh_enable_ip+0x58/0x80 [ 7612.095640] [<c104ccad>] warn_slowpath_null+0x1d/0x20 [ 7612.095646] [<c10508a8>] __local_bh_enable_ip+0x58/0x80 [ 7612.095653] [<c16b7d34>] destroy_conntrack+0x64/0xa0 [ 7612.095660] [<c16b300f>] nf_conntrack_destroy+0xf/0x20 [ 7612.095665] [<c1677565>] skb_release_head_state+0x55/0xa0 [ 7612.095670] [<c16775bb>] skb_release_all+0xb/0x20 [ 7612.095674] [<c167760b>] __kfree_skb+0xb/0x60 [ 7612.095679] [<c16776f0>] kfree_skb+0x30/0x70 [ 7612.095686] [<f81b869d>] ? rtl_pci_reset_trx_ring+0x22d/0x370 [rtl_pci] [ 7612.095692] [<f81b869d>] rtl_pci_reset_trx_ring+0x22d/0x370 [rtl_pci] [ 7612.095698] [<f81b87f9>] rtl_pci_start+0x19/0x190 [rtl_pci] [ 7612.095705] [<f81970e6>] rtl_op_start+0x56/0x90 [rtlwifi] [ 7612.095712] [<c17e3f16>] drv_start+0x36/0xc0 [ 7612.095717] [<c17f5ab3>] ieee80211_do_open+0x2d3/0x890 [ 7612.095725] [<c16820fe>] ? call_netdevice_notifiers_info+0x2e/0x60 [ 7612.095730] [<c17f60bd>] ieee80211_open+0x4d/0x50 [ 7612.095736] [<c16891b3>] __dev_open+0xa3/0x130 [ 7612.095742] [<c183fa53>] ? _raw_spin_unlock_bh+0x13/0x20 [ 7612.095748] [<c1689499>] __dev_change_flags+0x89/0x140 [ 7612.095753] [<c127c70d>] ? selinux_capable+0xd/0x10 [ 7612.095759] [<c1689589>] dev_change_flags+0x29/0x60 [ 7612.095765] [<c1700b93>] devinet_ioctl+0x553/0x670 [ 7612.095772] [<c12db758>] ? _copy_to_user+0x28/0x40 [ 7612.095777] [<c17018b5>] inet_ioctl+0x85/0xb0 [ 7612.095783] [<c166e647>] sock_ioctl+0x67/0x260 [ 7612.095788] [<c166e5e0>] ? sock_fasync+0x80/0x80 [ 7612.095795] [<c115c99b>] do_vfs_ioctl+0x6b/0x550 [ 7612.095800] [<c127c812>] ? selinux_file_ioctl+0x102/0x1e0 [ 7612.095807] [<c10a8914>] ? timekeeping_suspend+0x294/0x320 [ 7612.095813] [<c10a256a>] ? __hrtimer_run_queues+0x14a/0x210 [ 7612.095820] [<c1276e24>] ? security_file_ioctl+0x34/0x50 [ 7612.095827] [<c115cef0>] SyS_ioctl+0x70/0x80 [ 7612.095832] [<c1001804>] do_fast_syscall_32+0x84/0x120 [ 7612.095839] [<c183ff91>] sysenter_past_esp+0x36/0x55 [ 7612.095844] ---[ end trace 97e9c637a20e8348 ]--- Signed-off-by: Wang YanQing <udknight@gmail.com> Cc: Stable <stable@vger.kernel.org> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | rtlwifi: Remove double check for cnt_after_linkedwang yanqing2016-05-111-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rtl_lps_enter does two successive check for cnt_after_linked to make sure some time has elapsed after linked. The second check isn't necessary, because if cnt_after_linked is bigger than 5, it is bigger than 2 of course! This patch remove the second check code. Signed-off-by: Wang YanQing <udknight@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | brcmfmac: Add 4356 sdio supportChristian Daudt2016-05-114-1/+6
| | | | | | | | | | | | | | | | | | | | | This adds support for the 4356-sdio wireless chip. Signed-off-by: Christian Daudt <csd@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | rtlwifi: rtl818x: silence uninitialized variable warningDan Carpenter2016-05-111-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | What about if "rtlphy->pwrgroup_cnt" is 2? In that case we would use an uninitialized "chnlgroup" variable and probably crash. Maybe that can't happen for some reason which is not obvious but in that case this patch is harmless. Setting it to zero seems like a standard default in the surrounding code so it's probably fine here as well. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: Drop unnecessary include pcieport_if.hLukas Wunner2016-05-111-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This header file is only needed for drivers binding to a PCI bridge device allocated by drivers/pci/pcie/portdrv_core.c. The mwifiex driver doesn't do that nor use any symbols defined in pcieport_if.h. Cc: Amitkumar Karwar <akarwar@marvell.com> Cc: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | rtlwifi: Fix logic error in enter/exit power-save modewang yanqing2016-05-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit a269913c52ad ("rtlwifi: Rework rtl_lps_leave() and rtl_lps_enter() to use work queue"), the tests for enter/exit power-save mode were inverted. With this change applied, the wifi connection becomes much more stable. Fixes: a269913c52ad ("rtlwifi: Rework rtl_lps_leave() and rtl_lps_enter() to use work queue") Signed-off-by: Wang YanQing <udknight@gmail.com> CC: Stable <stable@vger.kernel.org> [3.10+] Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | rtlwifi: rtl818x: constify rtl_intf_ops structuresJulia Lawall2016-05-114-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | The rtl_intf_ops structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | wlcore/wl12xx: Fix fw logger over sdioGuy Mishol2016-05-113-6/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit fb724ed5c617 ("wlcore: Fix regression in wlcore_set_partition()") fixed wl12xx functionality. However, it reverted the support in fw logger over sdio in wl18xx. This patch reverts the changes made and also fixes the original functionality issue introduced in wl12xx. Fixes: fb724ed5c617 ("wlcore: Fix regression in wlcore_set_partition()") Signed-off-by: Guy Mishol <guym@ti.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | Merge tag 'iwlwifi-next-for-kalle-2016-05-10' of ↵Kalle Valo2016-05-1144-392/+1495
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next * work for RX multiqueue continues (Sara); * dynamic queue allocation work continues (Liad); * add Luca as maintainer; * a bunch of fixes and improvements all over;
| | * | MAINTAINERS: add myself as co-maintainer of the iwlwifi driverLuca Coelho2016-05-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm starting to take a more active role in the iwlwifi driver maintainership. Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| | * | iwlwifi: add default value to disable_11ac mod param descriptionEmmanuel Grumbach2016-05-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Small change to make it clear that the default value is false. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| | * | iwlwifi: pcie: grab NIC access only once on RX initSara Sharon2016-05-101-40/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When initializing RX we grab NIC access for every read and write. This is redundant - we can just grab access once. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| | * | iwlwifi: pcie: use shadow registers for updating write pointerSara Sharon2016-05-102-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RX queues have a shadow register for the write pointer that enables updates without grabbing NIC access. Use them instead of the periphery registers because accessing those is much more expensive. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| | * | iwlwifi: mvm: support dqa-mode agg on non-shared queueLiad Kaufman2016-05-106-40/+207
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In non-shared queues, DQA requires re-configuring existing queues to become aggregated rather than allocating a new one. It also requires "un-aggregating" an existing queue when aggregations are turned off. Support this requirement for non-shared queues. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| | * | iwlwifi: pcie: avoid msleep() with short timeoutJohannes Berg2016-05-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since msleep is based on jiffies, it can sleep for a long time. Use usleep_range() instead to shorten the maximum time. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| | * | iwlwifi: pcie: extend device reset delayJohannes Berg2016-05-101-9/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newer hardware generations will take longer to be accessible again after reset, so we need to wait longer before continuing any flow that did a reset. Rather than make the wait time configurable, simply extend it for all. Since all of these code paths can sleep, use usleep_range() rather than mdelay(). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| | * | iwlwifi: turn on SGI support for VHT 160MHzGregory Greenman2016-05-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Devices supporting VHT 160MHz width are supporting also Short GI. Turn on this capability in vht cap. Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| | * | iwlwifi: make configuration structs smallerJohannes Berg2016-05-109-70/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we have a lot of configuration structs (almost 70) saving some memory in each one of them leads to an overall saving of ~2.6KiB of memory. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>