From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f179.google.com (mail-yw1-f179.google.com [209.85.128.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 82A0513E418 for ; Tue, 23 Apr 2024 19:29:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713900594; cv=none; b=jkh29YzrwOSI/w55uEmSKDJ61ITCn0+w0Bjth4euwYiFFJR6LxEILHr8Qjz8bdlpd49x/e/RSeZzcszqTnxZDM7UAfzHAioY4eGv0tX0eA5ZbPJSkeQIS0mnFkhTGNUwhxOvOyNTvsKAq3XM/GJF6FCtMHIBZN9Tg+HUbqdtLvw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713900594; c=relaxed/simple; bh=UkjqzAEY+xUmI8ibNgSjLH18pwa4XJKVzG1+CmZUhos=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=TKwGgR4b0jB5X4ncvgSRwmKbszeDr13N56ILGH0kpNBsaMuCLPADd1TeGKZKAz7CF9oPu7fAMKZm29PiHjQA+BDWR4lk3+x3/91QL8IDuRfbhr5d/xYIj6maWRKYBnh9VOjY3GoCtV7Fzz+Ed3C3sfTzlkWCITgfmnokNyTW+8g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com; spf=pass smtp.mailfrom=bytedance.com; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b=b9aEDmEy; arc=none smtp.client-ip=209.85.128.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bytedance.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b="b9aEDmEy" Received: by mail-yw1-f179.google.com with SMTP id 00721157ae682-617e42a3f94so67098757b3.2 for ; Tue, 23 Apr 2024 12:29:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1713900591; x=1714505391; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=AdYVTxq72Ghh0+nryy4S2GXt7RvzUpURnWrK7wREYZs=; b=b9aEDmEydrz/Bv03fn7/cKnQLMyRN/pQFTWvDLlT1gSB3AVTusdbLEpCFBDBo3ZS8n NRXqByTtRgzd5VF4xnV7N8F9W+lhElsY4jZ0O+a6hdbiTfAbbBqz51L9FTPkjQcl9gu3 Su+5BrGG/VfFy6tRtD6l1sPOaLyHtUINrALTO2/gBpK2VlO5GprZngQg275sdfmIEOWF Xz0b6GJGvEHHpHtAGrP2hlNS6+P0BYRWDNlRD7i8v0Cqlw6Odxzze9BN5y/JrsNUcE0C IOv3hao7mugMds09LAKi5E0S2NmSD+gF+NrSkeBHighWGN8cZFJZUHWiUbd1CBcBcKnD 4d6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713900591; x=1714505391; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=AdYVTxq72Ghh0+nryy4S2GXt7RvzUpURnWrK7wREYZs=; b=TTPm99deKzywB7qD4ontoSFfz4i9nxbmxPG0HKCVdbIVLVF9Iz7vKgbmh+et2papBJ vQReEB8VFloBj+fsZ2JZP9ZXCHWHwZ4uGK1RYbFdRaA9AWKIkJA6b2L3zyTO3yqt4WUp AMCfkPbvSJnOm285K7m5fGefkcm0YxStWDFBL7ax+Gw/hO78JuFV4SgXAMn0pfNgTZUR qU7yViHRJ+nmlYsStXq2r9CA2soJeTlnaedFShLmU1JE68XypmyvCvENw6gUGTgTD1QA D5pKXGrSlhzPR6Km5YubFi935MqqP79/z8jILkv4lkw3vO+sN/9lNv0wSweVKFkIVGEP kovw== X-Gm-Message-State: AOJu0Yyim91mn/TMdfHihzTH8IZk9TjMqylufZeT/ljCJj6L1i6sHgQ0 luBDyXJnWyASN9cgxJBBFIbG1o4IavYTDeYx3qTFg30EU/9FPDfNRUKtNAzYkpE= X-Google-Smtp-Source: AGHT+IEnnvuwBABQJt3unA0O+RDYv60NQgWnLneWCgqrxcnIEsIM6phki1YZACvHdPbW1qeS25vuLw== X-Received: by 2002:a05:690c:a98:b0:615:2d5a:e398 with SMTP id ci24-20020a05690c0a9800b006152d5ae398mr542644ywb.21.1713900591171; Tue, 23 Apr 2024 12:29:51 -0700 (PDT) Received: from [10.73.215.90] ([72.29.204.230]) by smtp.gmail.com with ESMTPSA id i84-20020a0ddf57000000b00617cd7bd3a9sm2558766ywe.109.2024.04.23.12.29.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 23 Apr 2024 12:29:50 -0700 (PDT) Message-ID: <795d794c-35b8-4ae7-9a97-296523c5bf3a@bytedance.com> Date: Tue, 23 Apr 2024 12:29:48 -0700 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [External] Re: [PATCH net-next v2 0/3] net: A lightweight zero-copy notification To: Jakub Kicinski Cc: netdev@vger.kernel.org, edumazet@google.com, willemdebruijn.kernel@gmail.com, davem@davemloft.net, cong.wang@bytedance.com, xiaochun.lu@bytedance.com References: <20240419214819.671536-1-zijianzhang@bytedance.com> <20240419204754.3f3b7347@kernel.org> Content-Language: en-US From: Zijian Zhang In-Reply-To: <20240419204754.3f3b7347@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Thanks, will update in the next version. On 4/19/24 8:47 PM, Jakub Kicinski wrote: > On Fri, 19 Apr 2024 21:48:16 +0000 zijianzhang@bytedance.com wrote: >> Original title is "net: socket sendmsg MSG_ZEROCOPY_UARG" >> https://lore.kernel.org/all/ >> 20240409205300.1346681-2-zijianzhang@bytedance.com/ > > AFAICT sparse reports this new warning: > > net/core/sock.c:2864:26: warning: incorrect type in assignment (different address spaces) > net/core/sock.c:2864:26: expected void [noderef] __user *usr_addr > net/core/sock.c:2864:26: got void *