From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 54F0D25D558; Wed, 12 Feb 2025 18:53:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739386427; cv=none; b=lceoWFLwHKmyyu6UA/Izs2K62msy/d4wEhzPjASGXsUhIg5LuH0C1JLWHmzWLa5qkX5UAGvkY4aeGTp9ETmcfwUeAgq1dsHKsapLo+49ix9b7n1YFXTTwqtKDkznEjPwf91cZ+RJn8x5KtB3JXNZ80JqxeyQVHFMRR0cfM3RM0g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739386427; c=relaxed/simple; bh=5tJWQW682yVJHOELemxqrvB3V23kM6i2rx1d75/VJ70=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ryngTr32FwviBEiGkWtW4PkILev51JlYQVx6NkFta+MFD6MZLr5bgie1jk5/sQ+4Rysbg2tVC+z2OPrurT7xPCzQYMxEvQBTit2RmtnmQHidsxUULTlcF5lYbQ56qg9A/9ltvxQPxCNJpJsEr4CERARq/zZq7jSYRnRk2RMzfY0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=RQsJzdIo; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="RQsJzdIo" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=oUOokMrKASXdzZOA3VRoZ7fdfSIasrczhgZC+ARdsyE=; b=RQsJzdIo4sjdvkb3W0fwkdFRaa O57YRtnEq+Dfi18rN1QQwUuBy8dYpnMr5IQlIOiChqEyQR5T5MXOqbangz7v/EBYWW/HkX+P8uxVd idVVcsVuC1PGXaAK7beZ2GFCmN9Y3Y8pSbs17s98gPhCfsWxM/EmI7xjeGTmmG7zZ3FYar1vcZ1GW h55laSfKYbPWaVvzr2P1udrViDnu1von3OwcqpmZgx3g3jQPH5tdQFFtQN3ZwqwAF5L+Oug9GX7y+ ZjNB66u0s3SGCr440I3G2m1FDfd3d+xBpNUtfFXpL6XIDVSPSq0qiSv8tjXfWua6lN4yAYuGQBmSo eK0Oz+Zw==; Received: from willy by casper.infradead.org with local (Exim 4.98 #2 (Red Hat Linux)) id 1tiHrZ-00000005dDY-05Hq; Wed, 12 Feb 2025 18:53:33 +0000 Date: Wed, 12 Feb 2025 18:53:32 +0000 From: Matthew Wilcox To: Yunsheng Lin Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, zhangkun09@huawei.com, liuyonglong@huawei.com, fanghaiqing@huawei.com, Alexander Lobakin , Robin Murphy , Alexander Duyck , Andrew Morton , IOMMU , MM , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Matthias Brugger , AngeloGioacchino Del Regno , netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: Re: [PATCH net-next v9 0/4] fix the DMA API misuse problem for page_pool Message-ID: References: <20250212092552.1779679-1-linyunsheng@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250212092552.1779679-1-linyunsheng@huawei.com> On Wed, Feb 12, 2025 at 05:25:47PM +0800, Yunsheng Lin wrote: > This patchset fix the dma API misuse problem as mentioned in [1]. > > 1. https://lore.kernel.org/lkml/8067f204-1380-4d37-8ffd-007fc6f26738@kernel.org/T/ That's a very long and complicated thread. I gave up. You need to provide a proper description of the problem.