From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9CC8A2EF673 for ; Thu, 25 Dec 2025 07:22:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766647362; cv=none; b=Du94UrgJ4u/xbFutIWQPk60RsjiEOLzU/VA0mGAgjEFg4PWFL3XKEPoj0ZZHVGQU8QFaJ5tX0Nxkvhw4U5MPbqPjWUNtfmmFna4UqOvEoIM+t4M/BeR8cO1ulgPC1UF6iDCH6N2diInjU07IePgbfcIEmOtlPyqX+8njDUMxKxg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766647362; c=relaxed/simple; bh=5L27PQMGmlnK/n67aPUXw0RHtYLnQQwTCIXQrTIwky0=; h=Message-ID:Date:MIME-Version:To:Cc:From:Subject:Content-Type; b=WxCSn1pGQ+rBy/mFi9/rVKEZiqcwpy+YMW+HQ8XqiV+hxDB+L38Fmgjuj3aU+Z4Nc1Ncl117+Ifw03JJ2R9HqLJOkPFqc2w7ToHKp7sxhC7ELEhTs5A4VL7RKfiu5hDPcQ+BlyMsJNEKM86jsnMWyy7vwDzbjUQGxgJ+IZycPPA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 79e3dfd2e16211f0a38c85956e01ac42-20251225 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.6,REQID:a6d1e8bb-1d28-4a6d-b47b-dabf29a1c331,IP:0,UR L:0,TC:0,Content:-5,EDM:0,RT:1,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:-4 X-CID-META: VersionHash:a9d874c,CLOUDID:f12ed64813c2bc8eaece4cf4cd3e090a,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:102|898,TC:nil,Content:0|15|50,EDM:-3,IP :nil,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0, LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 79e3dfd2e16211f0a38c85956e01ac42-20251225 X-User: lijiayi@kylinos.cn Received: from [172.25.120.57] [(10.44.16.150)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_128_GCM_SHA256 128/128) with ESMTP id 1758080312; Thu, 25 Dec 2025 15:22:31 +0800 Message-ID: Date: Thu, 25 Dec 2025 15:22:29 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Mika Westerberg Cc: linux-kernel@vger.kernel.org From: Jayi Li Subject: Question about commit 8cf9926c537c (thunderbolt: Reset only non-USB4 host routers in resume) Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Mika, Sorry to bother. I have a question about the above commit that I couldn't figure out, and I'd really appreciate it if you could help. The commit message says: "There is no need to reset the USB4 host routers on resume because they are reset already."But aside from `nhi_probe`, I haven't found where this reset occurs in the resume path. Could you please clarify where this automatic reset happens or the rationale behind it? Thank you for your time. Best regards, jiayi