From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 20B32C433F5 for ; Thu, 24 Feb 2022 10:29:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:References:Cc:To:Subject:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=Nr44g2OvUqkLPDGaXtdjqQUiWZXxprw7Cmsz22k2V/M=; b=ioCWlYtTf2tcYWvffaWuDscNDs WlzV9QnIeCPSdSebGn0WPkg9uQY1oHg0I7Y2jRKaBHDfthVurh2AQ85AVuYepryRvwpBstW9oLOPx Tl3WSE0eycf+iWwBeX+4/3CYSIclesl/mLS4BA79K7CZZ77UBEt0KS3ESD7Y88pl9KZGR46dZ5nz/ Lx94dLVHTBX8MvnoFGUUyYIY9Oy6yMDM+Q9m+dGrbsIFo3CVQJIAHV+rNV7+QUPO/5wsrQBGbMmkF GwWDJzLI3nfH6CSAZsMWrAGKYq4yaz5wPtzuz6DAiB4Gu5oMUdfe623UiJmU51kU+bzL4X7Wbtg6g fUE0jl7w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nNBNL-000KsR-Ed; Thu, 24 Feb 2022 10:29:31 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nNBMv-000KfE-Tp; Thu, 24 Feb 2022 10:29:09 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CDCB91509; Thu, 24 Feb 2022 02:29:04 -0800 (PST) Received: from [10.163.48.178] (unknown [10.163.48.178]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5F68A3F70D; Thu, 24 Feb 2022 02:28:58 -0800 (PST) From: Anshuman Khandual Subject: Re: [PATCH 02/11] swiotlb: make swiotlb_exit a no-op if SWIOTLB_FORCE is set To: Christoph Hellwig , iommu@lists.linux-foundation.org Cc: x86@kernel.org, Stefano Stabellini , Boris Ostrovsky , Juergen Gross , Joerg Roedel , David Woodhouse , Lu Baolu , Robin Murphy , linux-arm-kernel@lists.infradead.org, xen-devel@lists.xenproject.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-hyperv@vger.kernel.org, tboot-devel@lists.sourceforge.net, linux-pci@vger.kernel.org References: <20220222153514.593231-1-hch@lst.de> <20220222153514.593231-3-hch@lst.de> Message-ID: Date: Thu, 24 Feb 2022 15:59:00 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20220222153514.593231-3-hch@lst.de> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220224_022906_092624_1FD055E5 X-CRM114-Status: GOOD ( 14.19 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On 2/22/22 9:05 PM, Christoph Hellwig wrote: > If force bouncing is enabled we can't release the bufffers. typo ^^^^ > > Signed-off-by: Christoph Hellwig > --- > kernel/dma/swiotlb.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c > index f1e7ea160b433..36fbf1181d285 100644 > --- a/kernel/dma/swiotlb.c > +++ b/kernel/dma/swiotlb.c > @@ -378,6 +378,9 @@ void __init swiotlb_exit(void) > unsigned long tbl_vaddr; > size_t tbl_size, slots_size; > > + if (swiotlb_force == SWIOTLB_FORCE) > + return; > + > if (!mem->nslabs) > return; > > Reviewed-by: Anshuman Khandual _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv