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Mon, 14 Jun 2021 21:21:45 +0000 From: Smita Koralahalli To: x86@kernel.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org Cc: Tony Luck , Mauro Carvalho Chehab , James Morse , yazen.ghannam@amd.com, Robert Richter , Smita Koralahalli Subject: [PATCH] EDAC/mce_amd: Reduce unnecessary spew in dmesg if SMCA feature bit is not exposed Date: Mon, 14 Jun 2021 16:21:29 -0500 Message-Id: <20210614212129.227698-1-Smita.KoralahalliChannabasappa@amd.com> X-Mailer: git-send-email 2.17.1 Content-Type: text/plain X-Originating-IP: [165.204.184.1] X-ClientProxiedBy: BN9PR03CA0931.namprd03.prod.outlook.com (2603:10b6:408:108::6) To SN6PR12MB2685.namprd12.prod.outlook.com (2603:10b6:805:67::33) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from ethanolx50f7host.amd.com (165.204.184.1) by BN9PR03CA0931.namprd03.prod.outlook.com (2603:10b6:408:108::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4219.20 via Frontend Transport; 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This causes a lot of noise in dmesg as the warning is printed for each logical CPU. $ dmesg |grep -i family [ 0.031000] smpboot: CPU0: AMD EPYC-Milan Processor (family: 0x19, model: 0x1, stepping: 0x1) [ 4.653422] Huh? What family is it: 0x19?! [ 4.720732] Huh? What family is it: 0x19?! [ 6.171028] Huh? What family is it: 0x19?! [ 6.766552] Huh? What family is it: 0x19?! [ 6.811119] Huh? What family is it: 0x19?! [ 6.839855] Huh? What family is it: 0x19?! Give these messages debug severity and output once as it is mostly useful for module developers and just noise for users. Rephrase the statement to make it more meaningful. Signed-off-by: Smita Koralahalli --- drivers/edac/mce_amd.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c index 5dd905a3f30c..2a9899088389 100644 --- a/drivers/edac/mce_amd.c +++ b/drivers/edac/mce_amd.c @@ -1227,13 +1227,9 @@ static int __init mce_amd_init(void) fam_ops.mc2_mce = f16h_mc2_mce; break; - case 0x17: - case 0x18: - pr_warn_once("Decoding supported only on Scalable MCA processors.\n"); - return -EINVAL; - default: - printk(KERN_WARNING "Huh? What family is it: 0x%x?!\n", c->x86); + pr_debug_once("MCE decoding is not supported for family: 0x%x\n", + c->x86); return -EINVAL; } -- 2.17.1