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path: root/drivers/net/wireless/broadcom/brcm80211
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2020-10-02Merge tag 'wireless-drivers-next-2020-10-02' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for v5.10 Third set of patches for v5.10. Lots of iwlwifi patches this time, but also few patches ath11k and of course smaller changes to other drivers. Major changes: rtw88 * properly recover from firmware crashes on 8822c * dump firmware crash log iwlwifi * protected Target Wake Time (TWT) implementation * support disabling 5.8GHz channels via ACPI * support VHT extended NSS capability * enable Target Wake Time (TWT) by default ath11k * improvements to QCA6390 PCI support to make it more usable ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01brcmfmac: Fix warning message after dongle setup failedWright Feng
Brcmfmac showed warning message in fweh.c when checking the size of event queue which is not initialized. Therefore, we only cancel the worker and reset event handler only when it is initialized. [ 145.505899] brcmfmac 0000:02:00.0: brcmf_pcie_setup: Dongle setup [ 145.929970] ------------[ cut here ]------------ [ 145.929994] WARNING: CPU: 0 PID: 288 at drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:312 brcmf_fweh_detach+0xbc/0xd0 [brcmfmac] ... [ 145.930029] Call Trace: [ 145.930036] brcmf_detach+0x77/0x100 [brcmfmac] [ 145.930043] brcmf_pcie_remove+0x79/0x130 [brcmfmac] [ 145.930046] pci_device_remove+0x39/0xc0 [ 145.930048] device_release_driver_internal+0x141/0x200 [ 145.930049] device_release_driver+0x12/0x20 [ 145.930054] brcmf_pcie_setup+0x101/0x3c0 [brcmfmac] [ 145.930060] brcmf_fw_request_done+0x11d/0x1f0 [brcmfmac] [ 145.930062] ? lock_timer_base+0x7d/0xa0 [ 145.930063] ? internal_add_timer+0x1f/0xa0 [ 145.930064] ? add_timer+0x11a/0x1d0 [ 145.930066] ? __kmalloc_track_caller+0x18c/0x230 [ 145.930068] ? kstrdup_const+0x23/0x30 [ 145.930069] ? add_dr+0x46/0x80 [ 145.930070] ? devres_add+0x3f/0x50 [ 145.930072] ? usermodehelper_read_unlock+0x15/0x20 [ 145.930073] ? _request_firmware+0x288/0xa20 [ 145.930075] request_firmware_work_func+0x36/0x60 [ 145.930077] process_one_work+0x144/0x360 [ 145.930078] worker_thread+0x4d/0x3c0 [ 145.930079] kthread+0x112/0x150 [ 145.930080] ? rescuer_thread+0x340/0x340 [ 145.930081] ? kthread_park+0x60/0x60 [ 145.930083] ret_from_fork+0x25/0x30 Signed-off-by: Wright Feng <wright.feng@cypress.com> Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200928054922.44580-3-wright.feng@cypress.com
2020-10-01brcmfmac: Fix warning when hitting FW crash with flow control featureWright Feng
Brcmfmac got warning message when hitting FW crash in TX throughput test with fcmode=2. It's caused by FMAC flushed TXQ in brcmf_sdio_bus_stop but without doing hanger slot cleanup. Therefore, we move brcmf_remove_interface before brcmf_bus_stop to make sure the hanger slot is clean when flushing TXQ. [ 1891.512234] WARNING: CPU: 1 PID: 2765 at drivers/net/wireless/broadcom/brcm80211/brcmutil/utils.c:49 brcmu_pkt_buf_free_skb+0x21/0x30 [brcmutil] [ 1891.512234] Modules linked in: brcmfmac(OE-) brcmutil(OE) cfg80211(OE) compat(OE) rfkill mmc_block(OE) sdhci_pci(OE) sdhci(OE) mmc_core(OE) ip6table_filter ip6_tables ebtable_nat ebtables dns_resolver fscache e1000e ppdev iTCO_wdt iTCO_vendor_support tpm_tis tpm_tis_core tpm mei_me mei pcspkr lpc_ich i2c_i801 mfd_core ptp pps_core parport_pc parport wmi tcp_bic uinput i915 iosf_mbi i2c_algo_bit drm_kms_helper drm i2c_core video [last unloaded: brcmfmac] [ 1891.512247] CPU: 1 PID: 2765 Comm: rmmod Tainted: G W OE 4.12.0 #1 [ 1891.512247] Hardware name: /DH77EB, BIOS EBH7710H.86A.0100.2013.0312.1351 03/12/2013 [ 1891.512248] task: ffff880118f08000 task.stack: ffffc90001180000 [ 1891.512249] RIP: 0010:brcmu_pkt_buf_free_skb+0x21/0x30 [brcmutil] [ 1891.512249] RSP: 0018:ffffc90001183cc0 EFLAGS: 00010086 [ 1891.512250] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000006 [ 1891.512251] RDX: 0000000000000000 RSI: 0000000000000086 RDI: ffff880118e3ab00 [ 1891.512251] RBP: ffffc90001183cc0 R08: 0000000000000000 R09: 000000000000a050 [ 1891.512252] R10: 0000000000000001 R11: 0000000000aaaaaa R12: 00000000000000bc [ 1891.512253] R13: ffff880118b40c78 R14: 0000000000000002 R15: ffff880118e3ab00 [ 1891.512253] FS: 00007f2a49760740(0000) GS:ffff88011f280000(0000) knlGS:0000000000000000 [ 1891.512254] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1891.512254] CR2: 00000000012994a8 CR3: 000000011a3c4000 CR4: 00000000001406e0 [ 1891.512255] Call Trace: [ 1891.512259] brcmf_fws_cleanup+0x1ea/0x240 [brcmfmac] [ 1891.512264] brcmf_fws_detach+0x42/0x60 [brcmfmac] [ 1891.512268] brcmf_proto_bcdc_detach+0x26/0x40 [brcmfmac] [ 1891.512273] brcmf_proto_detach+0x57/0x70 [brcmfmac] [ 1891.512277] brcmf_detach+0x89/0x100 [brcmfmac] [ 1891.512282] brcmf_sdio_remove+0x76/0x180 [brcmfmac] [ 1891.512286] brcmf_sdiod_remove+0x25/0xb0 [brcmfmac] [ 1891.512291] brcmf_ops_sdio_remove+0xbd/0x120 [brcmfmac] [ 1891.512294] sdio_bus_remove+0x33/0x100 [mmc_core] [ 1891.512295] device_release_driver_internal+0x141/0x200 [ 1891.512297] driver_detach+0x38/0x70 [ 1891.512298] bus_remove_driver+0x55/0xd0 [ 1891.512299] driver_unregister+0x2c/0x50 [ 1891.512303] sdio_unregister_driver+0x1a/0x20 [mmc_core] [ 1891.512307] brcmf_sdio_exit+0x2f/0x40 [brcmfmac] [ 1891.512312] brcmf_core_exit+0x15/0xd7 [brcmfmac] [ 1891.512316] __exit_compat+0x9/0x2b [brcmfmac] [ 1891.512318] SyS_delete_module+0x155/0x230 [ 1891.512319] ? exit_to_usermode_loop+0x70/0x99 [ 1891.512321] do_syscall_64+0x54/0xc0 [ 1891.512322] entry_SYSCALL64_slow_path+0x25/0x25 Signed-off-by: Wright Feng <wright.feng@cypress.com> Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200928054922.44580-2-wright.feng@cypress.com
2020-09-29net: brcmfmac: Convey allocation mode as argumentSebastian Andrzej Siewior
The usage of in_interrupt() in drivers is phased out and Linus clearly requested that code which changes behaviour depending on context should either be seperated or the context be conveyed in an argument passed by the caller, which usually knows the context. brcmf_fweh_process_event() uses in_interrupt() to select the allocation mode GFP_KERNEL/GFP_ATOMIC. Aside of the above reasons this check is incomplete as it cannot detect contexts which just have preemption or interrupts disabled. All callchains leading to brcmf_fweh_process_event() can clearly identify the calling context. Convey a 'gfp' argument through the callchains and let the callers hand in the appropriate GFP mode. This has also the advantage that any change of execution context or preemption/interrupt state in these callchains will be detected by the memory allocator for all GFP_KERNEL allocations. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-29net: brcmfmac: Convey execution context via argument to brcmf_netif_rx()Thomas Gleixner
bcrmgf_netif_rx() uses in_interrupt to chose between netif_rx() and netif_rx_ni(). in_interrupt() usage in drivers is phased out. Convey the execution mode via an 'inirq' argument through the various callchains leading to brcmf_netif_rx(): brcmf_pcie_isr_thread() <- Task context brcmf_proto_msgbuf_rx_trigger() brcmf_msgbuf_process_rx() brcmf_msgbuf_process_msgtype() brcmf_msgbuf_process_rx_complete() brcmf_netif_mon_rx() brcmf_netif_rx(isirq = false) brcmf_netif_rx(isirq = false) brcmf_sdio_readframes() <- Task context sdio_claim_host() might sleep brcmf_rx_frame(isirq = false) brcmf_sdio_rxglom() <- Task context sdio_claim_host() might sleep brcmf_rx_frame(isirq = false) brcmf_usb_rx_complete() <- Interrupt context brcmf_rx_frame(isirq = true) brcmf_rx_frame() brcmf_proto_rxreorder() brcmf_proto_bcdc_rxreorder() brcmf_fws_rxreorder() brcmf_netif_rx() brcmf_netif_rx() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-29net: brcmfmac: Replace in_interrupt()Sebastian Andrzej Siewior
brcmf_sdio_isr() is using in_interrupt() to distinguish if it is called from a interrupt service routine or from a worker thread. Passing such information from the calling context is preferred and requested by Linus, so add an argument `in_isr' to brcmf_sdio_isr() and let the callers pass the information about the calling context. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> Acked-by: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25Merge tag 'wireless-drivers-next-2020-09-25' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for v5.10 Second set of patches for v5.10. Biggest change here is wcn3680 support to wcn36xx driver, otherwise smaller features. And naturally the usual fixes and cleanups. Major changes: brcmfmac * support 4-way handshake offloading for WPA/WPA2-PSK in AP mode * support SAE authentication offload in AP mode mt76 * mt7663 runtime power management improvements * mt7915 A-MSDU offload wcn36xx * add support wcn3680 Wi-Fi 5 devices ath11k * spectral scan support for ipq6018 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24brcmfmac: check return value of driver_for_each_device()Zhang Changzhong
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c:1576:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 1576 | int ret; | ^~~ driver_for_each_device() has been declared with __must_check, so the return value should be checked. Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1600481191-14250-1-git-send-email-zhangchangzhong@huawei.com
2020-09-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Two minor conflicts: 1) net/ipv4/route.c, adding a new local variable while moving another local variable and removing it's initial assignment. 2) drivers/net/dsa/microchip/ksz9477.c, overlapping changes. One pretty prints the port mode differently, whilst another changes the driver to try and obtain the port mode from the port node rather than the switch node. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-16brcmsmac: main: Eliminate empty brcms_c_down_del_timer()Jason Yan
This function does nothing so remove it. This addresses the following coccicheck warning: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:5103:6-15: Unneeded variable: "callbacks". Return "0" on line 5105 Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200910140446.1168049-1-yanaijie@huawei.com Link: https://lore.kernel.org/r/20200910140455.1168174-1-yanaijie@huawei.com
2020-09-16brcmsmac: phy_lcn: Remove unused variable 'lcnphy_rx_iqcomp_table_rev0'Lee Jones
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:361:25: warning: unused variable 'lcnphy_rx_iqcomp_table_rev0' [-Wunused-const-variable] struct lcnphy_rx_iqcomp lcnphy_rx_iqcomp_table_rev0[] = { ^ Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200910065431.657636-30-lee.jones@linaro.org Link: https://lore.kernel.org/r/20200910140505.1168317-1-yanaijie@huawei.com Link: https://lore.kernel.org/r/20200910035600.21736-1-yuehaibing@huawei.com
2020-09-16brcmsmac: phytbl_lcn: Remove unused array 'dot11lcn_gain_tbl_rev1'Lee Jones
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phytbl_lcn.c:108:18: warning: unused variable 'dot11lcn_gain_tbl_rev1' [-Wunused-const-variable] static const u32 dot11lcn_gain_tbl_rev1[] = { Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200910065431.657636-29-lee.jones@linaro.org
2020-09-16brcmfmac: support SAE authentication offload in AP modeChung-Hsien Hsu
Firmware may have SAE authenticator code built-in. This is detected by the driver and indicated in the wiphy features flags. User space can use this flag to determine whether or not to provide the password material in the nl80211 start AP command to offload the SAE authentication in AP mode. Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com> Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200817073316.33402-5-stanley.hsu@cypress.com
2020-09-16brcmfmac: support 4-way handshake offloading for WPA/WPA2-PSK in AP modeChung-Hsien Hsu
Firmware may have authenticator code built-in. This is detected by the driver and indicated in the wiphy features flags. User space can use this flag to determine whether or not to provide the pre-shared key material in the nl80211 start AP command to offload the 4-way handshake in AP mode. Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com> Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200817073316.33402-3-stanley.hsu@cypress.com
2020-09-09brcmsmac: fix memory leak in wlc_phy_attach_lcnphyKeita Suzuki
When wlc_phy_txpwr_srom_read_lcnphy fails in wlc_phy_attach_lcnphy, the allocated pi->u.pi_lcnphy is leaked, since struct brcms_phy will be freed in the caller function. Fix this by calling wlc_phy_detach_lcnphy in the error handler of wlc_phy_txpwr_srom_read_lcnphy before returning. Signed-off-by: Keita Suzuki <keitasuzuki.park@sslab.ics.keio.ac.jp> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200908121743.23108-1-keitasuzuki.park@sslab.ics.keio.ac.jp
2020-09-07brcmfmac: set F2 SDIO block size to 128 bytes for BCM4329Dmitry Osipenko
Setting F2 block size to 128 bytes for BCM4329 allows to significantly improve RX throughput on NVIDIA Tegra20. Before this change the throughput was capped to 30 Mbit/s on Tegra, now throughput is at 40 Mbit/s, which is a maximum throughput for the BCM4329 chip. The F2 block size is borrowed from the downstream BCMDHD driver. The comment in the BCMDHD driver says that 128B improves throughput and turns out that it works for the brcmfmac as well. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200830191439.10017-4-digetx@gmail.com
2020-09-07brcmfmac: drop chip id from debug messagesDmitry Osipenko
The chip ID was already printed out at the time when debug message about the changed F2 watermark is printed, hence let's drop the unnecessary part of the debug messages. This cleans code a tad and also allows to re-use the F2 watermark debug messages by multiple chips. Suggested-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200830191439.10017-3-digetx@gmail.com
2020-09-07brcmfmac: increase F2 watermark for BCM4329Dmitry Osipenko
This patch fixes SDHCI CRC errors during of RX throughput testing on BCM4329 chip if SDIO BUS is clocked above 25MHz. In particular the checksum problem is observed on NVIDIA Tegra20 SoCs. The good watermark value is borrowed from downstream BCMDHD driver and it's matching to the value that is already used for the BCM4339 chip, hence let's re-use it for BCM4329. Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200830191439.10017-2-digetx@gmail.com
2020-09-01brcmsmac: phytbl_n: Remove a few unused arraysLee Jones
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phytbl_n.c:9218:18: warning: ‘papd_cal_scalars_tbl_core1_rev3’ defined but not used [-Wunused-const-variable=] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phytbl_n.c:9151:18: warning: ‘papd_comp_epsilon_tbl_core1_rev3’ defined but not used [-Wunused-const-variable=] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phytbl_n.c:9084:18: warning: ‘papd_cal_scalars_tbl_core0_rev3’ defined but not used [-Wunused-const-variable=] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phytbl_n.c:9017:18: warning: ‘papd_comp_epsilon_tbl_core0_rev3’ defined but not used [-Wunused-const-variable=] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200826093401.1458456-31-lee.jones@linaro.org
2020-09-01brcmsmac: phytbl_lcn: Remove unused array 'dot11lcnphytbl_rx_gain_info_rev1'Lee Jones
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phytbl_lcn.c:1510:33: warning: ‘dot11lcnphytbl_rx_gain_info_rev1’ defined but not used [-Wunused-const-variable=] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200826093401.1458456-30-lee.jones@linaro.org
2020-09-01brcmsmac: phy_n: Remove a bunch of unused variablesLee Jones
Fixes the following W=1 kernel build warning(s): In file included from drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:16: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_spurwar_nphy’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:19036:6: warning: variable ‘tempval’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_tempsense_nphy’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:21983:28: warning: variable ‘RfctrlMiscReg6_save’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_rssi_compute_nphy’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:22986:6: warning: variable ‘phyRx0_l’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_runsamples_nphy’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:23101:6: warning: variable ‘lpf_bw_ctl_miscreg4’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:23100:50: warning: variable ‘lpf_bw_ctl_miscreg3’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_iqcal_gainparams_nphy’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:23406:6: warning: variable ‘idx’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_a2_nphy’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:24707:7: warning: variable ‘phy_a6’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_a3_nphy’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:24999:7: warning: variable ‘phy_a11’ set but not used [-Wunused-but-set-variable] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: zhong jiang <zhongjiang@huawei.com> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200826093401.1458456-29-lee.jones@linaro.org
2020-09-01brcmsmac: phy_lcn: Remove a bunch of unused variablesLee Jones
Fixes the following W=1 kernel build warning(s): In file included from drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:11: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c: In function ‘wlc_lcnphy_rx_iq_cal’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:1366:29: warning: variable ‘RFOverride0_old’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c: In function ‘wlc_lcnphy_radio_2064_channel_tune_4313’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:1667:21: warning: variable ‘qFvco’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:1667:14: warning: variable ‘qFref’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:1667:6: warning: variable ‘qFxtal’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c: In function ‘wlc_lcnphy_idle_tssi_est’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:2856:6: warning: variable ‘idleTssi’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c: In function ‘wlc_lcnphy_tx_iqlo_soft_cal_full’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:3861:53: warning: variable ‘locc4’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:3861:46: warning: variable ‘locc3’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:3861:39: warning: variable ‘locc2’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:3861:32: warning: variable ‘iqcc0’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c: In function ‘wlc_lcnphy_periodic_cal’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:4196:6: warning: variable ‘rx_iqcomp_sz’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:4195:33: warning: variable ‘rx_iqcomp’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:4194:16: warning: variable ‘full_cal’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c: In function ‘wlc_phy_txpwr_srom_read_lcnphy’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:4919:7: warning: variable ‘opo’ set but not used [-Wunused-but-set-variable] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200826093401.1458456-28-lee.jones@linaro.org
2020-09-01brcmfmac: fwsignal: Finish documenting 'brcmf_fws_mac_descriptor'Lee Jones
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:389: warning: Function parameter or member 'name' not described in 'brcmf_fws_mac_descriptor' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:389: warning: Function parameter or member 'requested_packet' not described in 'brcmf_fws_mac_descriptor' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:389: warning: Function parameter or member 'suppr_transit_count' not described in 'brcmf_fws_mac_descriptor' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:389: warning: Function parameter or member 'send_tim_signal' not described in 'brcmf_fws_mac_descriptor' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:389: warning: Function parameter or member 'traffic_pending_bmp' not described in 'brcmf_fws_mac_descriptor' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:389: warning: Function parameter or member 'traffic_lastreported_bmp' not described in 'brcmf_fws_mac_descriptor' Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200826093401.1458456-14-lee.jones@linaro.org
2020-09-01brcmsmac: phy_cmn: Remove a unused variables 'vbat' and 'temp'Lee Jones
Fixes the following W=1 kernel build warning(s): In file included from drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_cmn.c:12: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_cmn.c: In function ‘wlc_phy_upd_env_txpwr_rate_limits’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_cmn.c:1516:11: warning: variable ‘vbat’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_cmn.c:1516:5: warning: variable ‘temp’ set but not used [-Wunused-but-set-variable] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200826093401.1458456-9-lee.jones@linaro.org
2020-09-01brcmfmac: p2p: Fix a couple of function headersLee Jones
Most likely caused by doc-rot. Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:977: warning: Function parameter or member 'wdev' not described in 'brcmf_p2p_remain_on_channel' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:2048: warning: Function parameter or member 'cfg' not described in 'brcmf_p2p_ifchange' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:2048: warning: Excess function parameter 'mac' description in 'brcmf_p2p_ifchange' Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200826093401.1458456-7-lee.jones@linaro.org
2020-09-01brcmsmac: ampdu: Remove a couple set but unused variablesLee Jones
Fixes the following W=1 kernel build warning(s): from drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:18: drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c: In function ‘brcms_c_ampdu_dotxstatus_complete’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:850:7: warning: variable ‘update_rate’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c: In function ‘brcms_c_ampdu_dotxstatus’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:1027:20: warning: variable ‘scb_ampdu’ set but not used [-Wunused-but-set-variable] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Lee Jones <lee.jones@linaro.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200826093401.1458456-3-lee.jones@linaro.org
2020-09-01brcmfmac: fwsignal: Remove unused variable 'brcmf_fws_prio2fifo'Lee Jones
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:504:18: warning: ‘brcmf_fws_prio2fifo’ defined but not used [-Wunused-const-variable=] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200821071644.109970-25-lee.jones@linaro.org
2020-09-01brcmfmac: btcoex: Update 'brcmf_btcoex_state' and demote othersLee Jones
The function headers are either very weakly documented or not at all. Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c:94: warning: Function parameter or member 'reg50' not described in 'brcmf_btcoex_info' drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c:94: warning: Function parameter or member 'saved_regs_part2' not described in 'brcmf_btcoex_info' drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c:233: warning: Function parameter or member 'btci' not described in 'btcmf_btcoex_save_part1' drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c:253: warning: Function parameter or member 'btci' not described in 'brcmf_btcoex_restore_part1' drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c:273: warning: Function parameter or member 't' not described in 'brcmf_btcoex_timerfunc' drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c:453: warning: Function parameter or member 'vif' not described in 'brcmf_btcoex_set_mode' drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c:453: warning: Function parameter or member 'duration' not described in 'brcmf_btcoex_set_mode' drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c:453: warning: Excess function parameter 'cfg' description in 'brcmf_btcoex_set_mode' Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200821071644.109970-17-lee.jones@linaro.org
2020-09-01brcmfmac: firmware: Demote seemingly unintentional kernel-doc headerLee Jones
The function parameter is not documented and either are any of the other functions in this source file. Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c:69: warning: Function parameter or member 'c' not described in 'is_nvram_char' Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200821071644.109970-13-lee.jones@linaro.org
2020-09-01brcmsmac: main: Remove a bunch of unused variablesLee Jones
Fixes the following W=1 kernel build warning(s): from drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:27: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c: In function ‘brcms_c_dotxstatus’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:845:6: warning: variable ‘mcl’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c: In function ‘brcms_b_phy_reset’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:1779:7: warning: variable ‘phy_in_reset’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c: In function ‘brcms_ucode_download’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:2273:23: warning: variable ‘wlc’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c: In function ‘brcms_b_coreinit’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:3176:6: warning: variable ‘sflags’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c: In function ‘brcms_c_set_chanspec’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:3902:7: warning: variable ‘switchband’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c: In function ‘brcms_c_down’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:5182:7: warning: variable ‘dev_gone’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c: In function ‘brcms_c_ofdm_rateset_war’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:5393:5: warning: variable ‘r’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c: In function ‘mac80211_wlc_set_nrate’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:5876:6: warning: variable ‘bcmerror’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c: In function ‘brcms_c_d11hdrs_mac80211’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c:6213:7: warning: variable ‘short_preamble’ set but not used [-Wunused-but-set-variable] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200821071644.109970-10-lee.jones@linaro.org
2020-09-01brcmfmac: p2p: Fix a bunch of function docsLee Jones
Some formatting issues, some missing and some extra descriptions. Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:162: warning: Function parameter or member 'oui' not described in 'brcmf_p2p_pub_act_frame' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:162: warning: Function parameter or member 'elts' not described in 'brcmf_p2p_pub_act_frame' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:181: warning: Function parameter or member 'oui' not described in 'brcmf_p2p_action_frame' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:181: warning: Function parameter or member 'elts' not described in 'brcmf_p2p_action_frame' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:196: warning: Function parameter or member 'query_data' not described in 'brcmf_p2psd_gas_pub_act_frame' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:210: warning: Function parameter or member 'extra_listen' not described in 'brcmf_config_af_params' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:776: warning: Function parameter or member 'ifp' not described in 'brcmf_p2p_run_escan' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:776: warning: Excess function parameter 'ndev' description in 'brcmf_p2p_run_escan' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:776: warning: Excess function parameter 'action' description in 'brcmf_p2p_run_escan' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:977: warning: Function parameter or member 'wdev' not described in 'brcmf_p2p_remain_on_channel' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:977: warning: Function parameter or member 'cookie' not described in 'brcmf_p2p_remain_on_channel' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:1063: warning: Function parameter or member 'channel' not described in 'brcmf_p2p_act_frm_search' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:1337: warning: Function parameter or member 'mac' not described in 'brcmf_p2p_gon_req_collision' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:2046: warning: Function parameter or member 'cfg' not described in 'brcmf_p2p_ifchange' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:2046: warning: Function parameter or member 'if_type' not described in 'brcmf_p2p_ifchange' drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:2046: warning: Excess function parameter 'mac' description in 'brcmf_p2p_ifchange' Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200821071644.109970-6-lee.jones@linaro.org
2020-09-01brcmsmac: ampdu: Remove a bunch of unused variablesLee Jones
Fixes the following W=1 kernel build warning(s): from drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:18: drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c: In function ‘brcms_c_ampdu_finalize’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:648:25: warning: variable ‘sgi’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c: In function ‘brcms_c_ampdu_dotxstatus_complete’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:856:18: warning: variable ‘rr_retry_limit’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:855:5: warning: variable ‘antselid’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:853:41: warning: variable ‘tx_error’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:853:7: warning: variable ‘update_rate’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c: In function ‘brcms_c_ampdu_dotxstatus’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:1037:28: warning: variable ‘tx_info’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmsmac/ampdu.c:1035:28: warning: variable ‘ini’ set but not used [-Wunused-but-set-variable] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200821071644.109970-5-lee.jones@linaro.org
2020-09-01brcmfmac: p2p: Deal with set but unused variablesLee Jones
'vif' is a function parameter which is oddly overwritten within the function, but never read back. 'timeout' is set, but never checked. Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c: In function ‘brcmf_p2p_scan_prep’: drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:894:31: warning: parameter ‘vif’ set but not used [-Wunused-but-set-parameter] drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c: In function ‘brcmf_p2p_tx_action_frame’: drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:1549:6: warning: variable ‘timeout’ set but not used [-Wunused-but-set-variable] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200819072402.3085022-26-lee.jones@linaro.org
2020-08-27brcmsmac: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200817090637.26887-8-allen.cryptic@gmail.com
2020-08-27brcmfmac: Use fallthrough pseudo-keywordGustavo A. R. Silva
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200821063758.GA17783@embeddedor
2020-08-27brcmsmac: mac80211_if: Demote a few non-conformant kerneldoc headersLee Jones
Fixes the following W=1 kernel build warning(s): In file included from drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c:30: drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c:288: warning: Function parameter or member 'wl' not described in 'brcms_free' drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c:1127: warning: Function parameter or member 'pdev' not described in 'brcms_attach' drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c:1222: warning: Function parameter or member 'pdev' not described in 'brcms_bcma_probe' drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c:1301: warning: Function parameter or member 'work' not described in 'brcms_driver_init' Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Johannes Berg <johannes.berg@intel.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200814113933.1903438-25-lee.jones@linaro.org
2020-08-27brcmfmac: fweh: Fix docrot related function documentation issuesLee Jones
Also demote a commit block header which is clearly not suitable for kerneldoc. Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c: In function ‘brcmf_fweh_handle_if_event’: drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:131:6: warning: variable ‘err’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:36: warning: Function parameter or member 'datalen' not described in 'brcmf_fweh_queue_item' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:44: warning: Function parameter or member 'code' not described in 'brcmf_fweh_event_name' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:44: warning: Function parameter or member 'name' not described in 'brcmf_fweh_event_name' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:127: warning: Function parameter or member 'emsg' not described in 'brcmf_fweh_handle_if_event' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:127: warning: Function parameter or member 'data' not described in 'brcmf_fweh_handle_if_event' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:127: warning: Excess function parameter 'item' description in 'brcmf_fweh_handle_if_event' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:127: warning: Excess function parameter 'ifpp' description in 'brcmf_fweh_handle_if_event' drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:391: warning: Function parameter or member 'packet_len' not described in 'brcmf_fweh_process_event' Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Lee Jones <lee.jones@linaro.org> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200814113933.1903438-24-lee.jones@linaro.org
2020-08-27brcmfmac: fweh: Remove set but unused variable 'err'Lee Jones
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c: In function ‘brcmf_fweh_handle_if_event’: drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:131:6: warning: variable ‘err’ set but not used [-Wunused-but-set-variable] Cc: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: Franky Lin <franky.lin@broadcom.com> Cc: Hante Meuleman <hante.meuleman@broadcom.com> Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com> Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Cc: brcm80211-dev-list@cypress.com Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200814113933.1903438-23-lee.jones@linaro.org
2020-08-18brcmfmac: reserve tx credit only when txctl is ready to sendWright Feng
The 4329 throughput drops from 40.2 Mbits/sec to 190 Kbits/sec in 2G 11n mode because the commit b41c232d33666 ("brcmfmac: reserve 2 credits for host tx control path"). To fix the issue, host driver only reserves tx control credit when there is a txctl frame is pending to send. And we also check available credit by using "not equal to 0" instead of "greater than 0" because tx_max and tx_seq are circled positive numbers. Reported-by: Dmitry Osipenko <digetx@gmail.com> Fixes: b41c232d33666 ("brcmfmac: reserve 2 credits for host tx control path") Signed-off-by: Wright Feng <wright.feng@cypress.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200813070017.89023-1-wright.feng@cypress.com
2020-08-18brcmfmac: check ndev pointerTom Rix
Clang static analysis reports this error brcmfmac/core.c:490:4: warning: Dereference of null pointer (*ifp)->ndev->stats.rx_errors++; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In this block of code if (ret || !(*ifp) || !(*ifp)->ndev) { if (ret != -ENODATA && *ifp) (*ifp)->ndev->stats.rx_errors++; brcmu_pkt_buf_free_skb(skb); return -ENODATA; } (*ifp)->ndev being NULL is caught as an error But then it is used to report the error. So add a check before using it. Fixes: 91b632803ee4 ("brcmfmac: Use net_device_stats from struct net_device") Signed-off-by: Tom Rix <trix@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200802161804.6126-1-trix@redhat.com
2020-08-18brcmfmac: use %*ph to print small bufferAndy Shevchenko
Use %*ph format to print small buffer as hex string. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200730155327.40130-1-andriy.shevchenko@linux.intel.com
2020-08-18brcm80211: fix possible memleak in brcmf_proto_msgbuf_attachWang Yufen
When brcmf_proto_msgbuf_attach fail and msgbuf->txflow_wq != NULL, we should destroy the workqueue. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1595237765-66238-1-git-send-email-wangyufen@huawei.com
2020-08-02brcmfmac: Set timeout value when configuring power saveNicolas Saenz Julienne
Set the timeout value as per cfg80211's set_power_mgmt() request. If the requested value value is left undefined we set it to 2 seconds, the maximum supported value. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200721112302.22718-1-nsaenzjulienne@suse.de
2020-07-14brcm80211: brcmsmac: Move LEDs to GPIO descriptorsLinus Walleij
The code in the BRCM80211 BRCMSMAC driver is using the legacy GPIO API to to a complex check of the validity of the base of the GPIO chip and whether it is present at all and then adding an offset to the base of the chip. Use the existing function to obtain a GPIO line internally from a GPIO chip so we can use the offset directly and modernize the code to use GPIO descriptors instead of integers from the global GPIO numberspace. Cc: Wright Feng <wright.feng@cypress.com> Cc: Frank Kao <frank.kao@cypress.com> Cc: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200711210150.4943-1-linus.walleij@linaro.org
2020-07-14brcmfmac: Transform compatible string for FW loadingMatthias Brugger
The driver relies on the compatible string from DT to determine which FW configuration file it should load. The DTS spec allows for '/' as part of the compatible string. We change this to '-' so that we will still be able to load the config file, even when the compatible has a '/'. This fixes explicitly the firmware loading for "solidrun,cubox-i/q". Signed-off-by: Matthias Brugger <mbrugger@suse.com> Reviewed-by: Hans deGoede <hdegoede@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200701112201.6449-1-matthias.bgg@kernel.org
2020-07-14brcmfmac: set pacing shift before transmitting skb to busWright Feng
Linux 3.6 introduces TSQ which has a per socket threshold for TCP Tx packet to reduce latency. In flow control mode, host driver enqueues skb in hanger and TCP doesn't push new skb frees until host frees the skb when receiving fwstatus event. So set pacing shift 8 to send them as a single large aggregate frame to the bus layer. 43455 TX TCP throughput in different FC modes on Linux 5.4.18 sk_pacing_shift : Throughput (fcmode=0) 10: 245 Mbps 9: 245 Mbps 8: 246 Mbps 7: 246 Mbps sk_pacing_shift : Throughput (fcmode=1) 10: 182 Mbps 9: 197 Mbps 8: 206 Mbps 7: 207 Mbps sk_pacing_shift : Throughput (fcmode=2) 10: 180 Mbps 9: 197 Mbps 8: 206 Mbps 7: 207 Mbps Signed-off-by: Wright Feng <wright.feng@cypress.com> Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200624091608.25154-3-wright.feng@cypress.com
2020-07-14brcmfmac: set state of hanger slot to FREE when flushing PSQWright Feng
When USB or SDIO device got abnormal bus disconnection, host driver tried to clean up the skbs in PSQ and TXQ (The skb's pointer in hanger slot linked to PSQ and TSQ), so we should set the state of skb hanger slot to BRCMF_FWS_HANGER_ITEM_STATE_FREE before freeing skb. In brcmf_fws_bus_txq_cleanup it already sets BRCMF_FWS_HANGER_ITEM_STATE_FREE before freeing skb, therefore we add the same thing in brcmf_fws_psq_flush to avoid following warning message. [ 1580.012880] ------------ [ cut here ]------------ [ 1580.017550] WARNING: CPU: 3 PID: 3065 at drivers/net/wireless/broadcom/brcm80211/brcmutil/utils.c:49 brcmu_pkt_buf_free_skb+0x21/0x30 [brcmutil] [ 1580.184017] Call Trace: [ 1580.186514] brcmf_fws_cleanup+0x14e/0x190 [brcmfmac] [ 1580.191594] brcmf_fws_del_interface+0x70/0x90 [brcmfmac] [ 1580.197029] brcmf_proto_bcdc_del_if+0xe/0x10 [brcmfmac] [ 1580.202418] brcmf_remove_interface+0x69/0x190 [brcmfmac] [ 1580.207888] brcmf_detach+0x90/0xe0 [brcmfmac] [ 1580.212385] brcmf_usb_disconnect+0x76/0xb0 [brcmfmac] [ 1580.217557] usb_unbind_interface+0x72/0x260 [ 1580.221857] device_release_driver_internal+0x141/0x200 [ 1580.227152] device_release_driver+0x12/0x20 [ 1580.231460] bus_remove_device+0xfd/0x170 [ 1580.235504] device_del+0x1d9/0x300 [ 1580.239041] usb_disable_device+0x9e/0x270 [ 1580.243160] usb_disconnect+0x94/0x270 [ 1580.246980] hub_event+0x76d/0x13b0 [ 1580.250499] process_one_work+0x144/0x360 [ 1580.254564] worker_thread+0x4d/0x3c0 [ 1580.258247] kthread+0x109/0x140 [ 1580.261515] ? rescuer_thread+0x340/0x340 [ 1580.265543] ? kthread_park+0x60/0x60 [ 1580.269237] ? SyS_exit_group+0x14/0x20 [ 1580.273118] ret_from_fork+0x25/0x30 [ 1580.300446] ------------ [ cut here ]------------ Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Wright Feng <wright.feng@cypress.com> Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200624091608.25154-2-wright.feng@cypress.com
2020-07-14brcmfmac: reset SDIO bus on a firmware crashChi-Hsien Lin
commit 4684997d9eea ("brcmfmac: reset PCIe bus on a firmware crash") adds a reset function to recover firmware trap for PCIe bus. This commit adds an implementation for SDIO bus. Upon SDIO firmware trap, do below: - Remove the device - Reset hardware - Probe the device again Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200622144851.165248-1-chi-hsien.lin@cypress.com
2020-07-14brcmfmac: do not disconnect for disassoc frame from unconnected APAble Liao
Ignore FW event if the event's BSSID is different form the BSSID of the currently connected AP. Check interface state is connected or not, if state is not connected that can ignore link down event. Signed-off-by: Able Liao <Able.Liao@cypress.com> Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200618160739.21457-4-chi-hsien.lin@cypress.com
2020-07-14brcmfmac: Fix for wrong disconnection event source informationSoontak Lee
Current brcmf_link_down() always call cfg80211_disconnected() with locally_generated=1, which is not always the case. Add event source argument on link down handler and set locally_generated based on the real trigger. Signed-off-by: Soontak Lee <soontak.lee@cypress.com> Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200618160739.21457-3-chi-hsien.lin@cypress.com