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mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Received: from BYAPR11MB3238.namprd11.prod.outlook.com (2603:10b6:a03:7e::30) by IA0PR11MB7838.namprd11.prod.outlook.com (2603:10b6:208:402::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8048.18; Fri, 11 Oct 2024 07:04:21 +0000 Received: from BYAPR11MB3238.namprd11.prod.outlook.com ([fe80::ba3:e9e3:27c2:bd03]) by BYAPR11MB3238.namprd11.prod.outlook.com ([fe80::ba3:e9e3:27c2:bd03%3]) with mapi id 15.20.8048.017; Fri, 11 Oct 2024 07:04:21 +0000 Message-ID: <85919a8b-0027-4a40-8be0-69be8582d70e@intel.com> Date: Fri, 11 Oct 2024 12:34:15 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] drm/i915/display/dp: Reduce log level for SOURCE OUI write failures To: "Taylor, Clinton A" , "Intel-gfx@lists.freedesktop.org" References: <20241004210816.3976058-1-clinton.a.taylor@intel.com> <35fd248c-db2a-47f5-a59e-549e2adaad72@intel.com> <2916f018481d3ecb354c0c1d6c2bd8f0c891bef4.camel@intel.com> Content-Language: en-US From: "Pottumuttu, Sai Teja" In-Reply-To: <2916f018481d3ecb354c0c1d6c2bd8f0c891bef4.camel@intel.com> Content-Type: text/plain; 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>>> + drm_info(&i915->drm, "Failed to write source OUI\n"); >>> >> Just had one small question here, I think NAK is one case, but in case >> of other errors/failures (EINVAL, ENOMEM) would we still want to reduce >> the log level? > If EINVAL or ENOMEM occurs there will be plenty of other failures earlier and later that > will be logged. This function returns void so we don't handle any failure for SourceOUI > write anyway. This just prevents noise in the dmesg log from known devices that NAK this > particular DPCD operation. The other option would be to list all known devices that return > NAK and filter them via a DCPD quirk. > > -Clint Ok, in that case, should we also consider decreasing the log level of read failure a little above? > >> Thanks, >> Sai Teja >> >>> intel_dp->last_oui_write = jiffies; >>> }