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 X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 426E7C433DF for ; Wed, 5 Aug 2020 19:28:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 01DBB206F6 for ; Wed, 5 Aug 2020 19:28:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ZCsy6hgh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728768AbgHET2i (ORCPT ); Wed, 5 Aug 2020 15:28:38 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:32013 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728612AbgHERLb (ORCPT ); Wed, 5 Aug 2020 13:11:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1596647489; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=aTite/iD0lQBRsDAUmY/i15AjG2mB78/HSvWX+2Oy3A=; b=ZCsy6hghHHxpvm+UAuRlGfP5ReAko5dndR8p/b6hkMIso+M8GNb58Mj8uVFDTeemFqLFww jDBEc9W7L2Jf5oxvDe7dPFm1VnJcf8Wapbn9TD98k0s/HNH9nw8n1F+cNs2HO4BvrSNloO lARG2G3a+NXtUP7+JRPMkZcwWX/KCNU= Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-314--WmjpFDvOfm_oikNDSEmCw-1; Wed, 05 Aug 2020 09:44:35 -0400 X-MC-Unique: -WmjpFDvOfm_oikNDSEmCw-1 Received: by mail-wm1-f72.google.com with SMTP id q15so2738833wmj.6 for ; Wed, 05 Aug 2020 06:44:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=aTite/iD0lQBRsDAUmY/i15AjG2mB78/HSvWX+2Oy3A=; b=COsNbVF70AY2aUdVM7ao1ygBtAGyia5VhCVgSYrBgck1DWe/W3Cfq3RIUYGR9u6MZh 5Y2IwOhjFmH3ShB2H1cTdd7yZ2rzLDC6wOvdkX3F5ptQtVlnAWprGK5h8yAAC5oLRcyJ SREaZxWEhd9YAb3oAvW+QD/GOurTK005jwB0bLONaxJCMeR7yWvonymUViv5EHBeNBjp Udpbgy8YaMpICTaw7c+Ioc/3WCaMWw3mkq4esE46pqqARKTU+rbQrlGZqHX5/bWVejFp MzIseVjqJ5rfj+/xjtqdXdP+aEbp9yQ1bYIzqs8ANFL4riPT85ABKuSRbk1l5f0j+m9L nwXw== X-Gm-Message-State: AOAM5308zdGrOVkE8wR6+/fTJVtoyFO/5jxutvvIStfin7Plp6ZvF1QK DTSv63GFuZ+0YgJy0n/28+nB3goR94Z9u0gELYDyh4JLtOgJ3DFW6n+oqjVBmVbTdEOE3av0Ayn 1m7dFZd8mcegnO0V8igNQ34pf X-Received: by 2002:a1c:7915:: with SMTP id l21mr3585718wme.50.1596635073670; Wed, 05 Aug 2020 06:44:33 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzBmRcbWg6Zcj3SVEKY1RPNAFRs6pH6ZTvrDA1nI/1TIiw8ZC6tgWC862aXu3/qn+3fvibSog== X-Received: by 2002:a1c:7915:: with SMTP id l21mr3585709wme.50.1596635073461; Wed, 05 Aug 2020 06:44:33 -0700 (PDT) Received: from redhat.com ([192.117.173.58]) by smtp.gmail.com with ESMTPSA id b77sm2354968wmb.3.2020.08.05.06.44.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Aug 2020 06:44:32 -0700 (PDT) Date: Wed, 5 Aug 2020 09:44:31 -0400 From: "Michael S. Tsirkin" To: linux-kernel@vger.kernel.org Cc: Jason Wang , virtualization@lists.linux-foundation.org Subject: [PATCH v3 28/38] virtio_config: add virtio_cread_le_feature Message-ID: <20200805134226.1106164-29-mst@redhat.com> References: <20200805134226.1106164-1-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200805134226.1106164-1-mst@redhat.com> X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Mirrors virtio_cread_feature but for LE fields. Signed-off-by: Michael S. Tsirkin --- include/linux/virtio_config.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index 5b5196fec899..cc7a2b1fd7b2 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -555,4 +555,14 @@ static inline void virtio_cwrite64(struct virtio_device *vdev, _r; \ }) +/* Conditional config space accessors. */ +#define virtio_cread_le_feature(vdev, fbit, structname, member, ptr) \ + ({ \ + int _r = 0; \ + if (!virtio_has_feature(vdev, fbit)) \ + _r = -ENOENT; \ + else \ + virtio_cread_le((vdev), structname, member, ptr); \ + _r; \ + }) #endif /* _LINUX_VIRTIO_CONFIG_H */ -- MST