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Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5123.25; Fri, 1 Apr 2022 14:05:18 +0000 Received: from MW2PR02MB3899.namprd02.prod.outlook.com ([fe80::d163:1cf6:9fda:4b82]) by MW2PR02MB3899.namprd02.prod.outlook.com ([fe80::d163:1cf6:9fda:4b82%4]) with mapi id 15.20.5123.019; Fri, 1 Apr 2022 14:05:18 +0000 From: "Nagarajan Maran (QUIC)" To: Kalle Valo CC: "ath11k@lists.infradead.org" , "linux-wireless@vger.kernel.org" , "Nagarajan Maran (QUIC)" Subject: RE: [PATCH v5.18] ath11k: fix driver initialization failure with WoW unsupported hw Thread-Topic: [PATCH v5.18] ath11k: fix driver initialization failure with WoW unsupported hw Thread-Index: AQHYRNFW+lpV0OMIdUmEcCGwKggX46zbaWMA//+vjQA= Date: Fri, 1 Apr 2022 14:05:17 +0000 Message-ID: References: <20220331073110.3846-1-quic_nmaran@quicinc.com> <164881389362.6665.5091759680024849832.kvalo@kernel.org> In-Reply-To: <164881389362.6665.5091759680024849832.kvalo@kernel.org> Accept-Language: en-US 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sYApdY9tAcZkdEC7iN+wKy3sXKomU92PYC4QahLgQ77csYl3+5EuwycveK7tma/PJjXRylo7kUyv9pdNfgYvjw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR02MB6372 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220401_070523_404660_E2345C8B X-CRM114-Status: GOOD ( 12.58 ) X-BeenThere: ath11k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath11k" Errors-To: ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org -----Original Message----- From: Kalle Valo Sent: Friday, April 1, 2022 5:22 PM To: Nagarajan Maran (QUIC) Cc: ath11k@lists.infradead.org; linux-wireless@vger.kernel.org; Nagarajan Maran (QUIC) Subject: Re: [PATCH v5.18] ath11k: fix driver initialization failure with WoW unsupported hw Nagarajan Maran wrote: > In the "ath11k_wow_init", error value "EINVAL" is returned when the > check for firmware support of WoW feature fails, which in turn stops > the driver initialization. > > Warning message: > [ 31.040144] ------------[ cut here ]------------ > [ 31.040185] WARNING: CPU: 1 PID: 51 at drivers/net/wireless/ath/ath11k/wow.c:813 ath11k_wow_init+0xc8/0x13a8 [ath11k] > [ 31.043846] Modules linked in: ath11k_pci ath11k qmi_helpers > [ 31.054341] CPU: 1 PID: 51 Comm: kworker/u8:1 Tainted: G W 5.17.0-wt-ath-594817-ga7f6aa925cf8-dirty #17 > [ 31.060078] Hardware name: Qualcomm Technologies, Inc. IPQ8074/AP-HK10-C2 (DT) > [ 31.070578] Workqueue: ath11k_qmi_driver_event ath11k_qmi_driver_event_work [ath11k] > [ 31.077782] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) > [ 31.085676] pc : ath11k_wow_init+0xc8/0x13a8 [ath11k] > [ 31.092359] lr : ath11k_mac_register+0x548/0xb98 [ath11k] > [ 31.097567] sp : ffff80000aa13c40 > [ 31.102944] x29: ffff80000aa13c40 x28: ffff800009184390 x27: ffff000002959f20 > [ 31.106251] x26: ffff000002828000 x25: ffff000002830000 x24: ffff000002830000 > [ 31.113369] x23: ffff000002820000 x22: ffff00000282854c x21: 0000000000000000 > [ 31.120487] x20: ffff00000295cf20 x19: ffff000002828540 x18: 0000000000000031 > [ 31.127605] x17: 0000000000000004 x16: ffff0000028285fc x15: ffff00000295b040 > [ 31.134723] x14: 0000000000000067 x13: ffff00000282859c x12: 000000000000000d > [ 31.141840] x11: 0000000000000018 x10: 0000000000000004 x9 : 0000000000000000 > [ 31.148959] x8 : ffff00000289d680 x7 : 0000000000000000 x6 : 000000000000003f > [ 31.156077] x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff000002820968 > [ 31.163196] x2 : 0000000000000080 x1 : 0080008af9981779 x0 : ffff000002959f20 > [ 31.170314] Call trace: > [ 31.177421] ath11k_wow_init+0xc8/0x13a8 [ath11k] > [ 31.179684] ath11k_core_qmi_firmware_ready+0x430/0x5e0 [ath11k] > [ 31.184548] ath11k_qmi_driver_event_work+0x16c/0x4f8 [ath11k] > [ 31.190623] process_one_work+0x134/0x350 > [ 31.196262] worker_thread+0x12c/0x450 > [ 31.200340] kthread+0xf4/0x110 > [ 31.203986] ret_from_fork+0x10/0x20 > [ 31.207026] ---[ end trace 0000000000000000 ]--- > [ 31.210894] ath11k_pci 0000:01:00.0: failed to init wow: -22 > [ 31.215467] ath11k_pci 0000:01:00.0: failed register the radio with mac80211: -22 > [ 31.221117] ath11k_pci 0000:01:00.0: failed to create pdev core: -22 > > Fix this by returning value "0" when FW doesn't support WoW to allow > driver to proceed with initialize sequence and also remove the > unnecessary "WARN_ON". > > > Tested-on: QCN9074 hw1.0 PCI > WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1 > > Fixes: ba9177fcef21 ("ath11k: Add basic WoW functionalities") > Signed-off-by: Nagarajan Maran > Signed-off-by: Kalle Valo > Even though I asked you to mark this for v5.18, I now realised that commit > ba9177fcef21 is only in ath-next. So I'll apply this to ath-next as well. Sure Kalle, thanks for sharing. - Nagarajan.M > -- > https://patchwork.kernel.org/project/linux-wireless/patch/20220331073110.3846-1-quic_nmaran@quicinc.com/ > https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches -- ath11k mailing list ath11k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath11k