From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2E306205E12 for ; Sat, 20 Apr 2024 03:47:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713584876; cv=none; b=JaVUTJkheY9d3MDtCXeeNFF1Sn09Xzc+pZffhndHJQgW6vSYxBrgXIFc7XDgMPRp7Vc698M1ZeIz6jYik3etUjtEIEKNfggUDzI/GZhJ2/HRa9JcawRfJ44uyjs4uNS1AH7075TRV51SdfE6MRvfTK4hdKTwuQvZYOpmSEhah0Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713584876; c=relaxed/simple; bh=J8O37Lq/C1eRN/zu7B23GwnAjTIkM6TSJFkBO5dKPFY=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=D6ZSbsRDuGbM16juwV93jfIGJz26cLJHmhOYPJB4h+udmqlJlPuq+V9DfcWgPJpXb597xZLavibI8rrZXGa+g0+DE9Ygxa78DvS/pmyII7TlPQ22k6JcVmVRP9f5Waw+mB4daAaqWcX4mDT0bmLv49OSDdPGm5ZdfKvbq1gqMsg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AgSyx3jR; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AgSyx3jR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6A5E8C113CC; Sat, 20 Apr 2024 03:47:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713584875; bh=J8O37Lq/C1eRN/zu7B23GwnAjTIkM6TSJFkBO5dKPFY=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=AgSyx3jRHPZ0nG9q1CpSvdaG2iCSlgvqMUBtcCNCx24gVnuULgR0aKA3JxPGFI40P Kqv0sZ+o70hjbVHadO92/zI6xGyzaHRBoQ2jYw8mJd4tgaMhAjL4Ckd5Bqa2ASQyZh dZTDZK7dvCA39DSDyzaxi6rbJ0Ik8+EhIPRY7izu54448tCtHVvdX6Z10OgfpZjWc/ mS3JmLpwqG0UPJV20SfkzNx1uWYZbqDgzie73L1H/4ErMW0D8YX0Repu+fm31hDlGW rE5sVQkK4ttmmNapU/HP8rqN2+EuEi8aM5K5TKscUbFTozBnPmaXObx2UyAMjvfo2x D1TM9OCbiALQA== Date: Fri, 19 Apr 2024 20:47:54 -0700 From: Jakub Kicinski To: zijianzhang@bytedance.com Cc: netdev@vger.kernel.org, edumazet@google.com, willemdebruijn.kernel@gmail.com, davem@davemloft.net, cong.wang@bytedance.com, xiaochun.lu@bytedance.com Subject: Re: [PATCH net-next v2 0/3] net: A lightweight zero-copy notification Message-ID: <20240419204754.3f3b7347@kernel.org> In-Reply-To: <20240419214819.671536-1-zijianzhang@bytedance.com> References: <20240419214819.671536-1-zijianzhang@bytedance.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 * -- pw-bot: cr