Received: by 2002:a05:6a10:6744:0:0:0:0 with SMTP id w4csp4307100pxu; Tue, 20 Oct 2020 13:33:59 -0700 (PDT) X-Google-Smtp-Source: ABdhPJytWNZodrSYQ9JoPNfsVecClElqPJzXwEiZgdp+BtHeYLQ3cBjCCyZVh0XlivfPBXH3IZuB X-Received: by 2002:aa7:d79a:: with SMTP id s26mr4581083edq.251.1603226038905; Tue, 20 Oct 2020 13:33:58 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1603226038; cv=none; d=google.com; s=arc-20160816; b=ALZYKogsAgPHz+iV6/xxJalI6heUEJZjrYMfo5ZDeYP585q8rdThjzLIfS9Q90tThv 3TnVH318cgvX0LdT9fML/0nXah+ul+PTZvQBFd4U+0vABOEHoA1Z90rJEYCq3etRVsAR 2fKSXu85ytvQDyIhThbqFnzB8pAYfVaAT/eQKniIdBT4jjdumFdnkYAbnwYrZPk7PN/8 SixpmHVod7sa/bM91dRrMPdAU5VDzvh51rFZcnhUcjtai95ghdFTbjJfNIDVS+6BXCEY z9kgYI/do6XVtApi0X6g1bztJHe5J2iw1Vp8vrT00aRxYgc4YFeTugviJl//AeZ/FMlG OkQQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=+PekFELKtEAOObappW3LaSGBWQTTLHUoFxkKmMFNiOA=; b=yDeMFBFl2w552CNNwaYdNRy7i8U7ERLKZbsTPLgyYOJKhFUsm8+tSZHovtM2MtkAE2 GmDTlK6iiiyUuvQkQ8sBk/1k90clyvFj38BOzjiAqxoTIep9YkS0erwY1sWTrswo+XLu SnCvHboFBE4CLgz/QL7fh6Dd8dkioocUjVBsRqGfqLgSIwP8rU6VesFf6rM8IG6mDZvY HbblQO/EMkpLkQJnlaDX+82xlWKVcIDI4yvZKDDQKk5xbyrwgPk04Ixd8Kxme5D+I1aI px2PPhCjeRE/w43sV8yAW/1F+qNvmDKPUgKn30LBTE71qmL0barR7ILm4YrNR+OSi10C aVhw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=DOfmn2Q2; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id lf14si2052960ejb.720.2020.10.20.13.33.36; Tue, 20 Oct 2020 13:33:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=DOfmn2Q2; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405116AbgJTHcR (ORCPT + 99 others); Tue, 20 Oct 2020 03:32:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:56182 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731280AbgJTHcR (ORCPT ); Tue, 20 Oct 2020 03:32:17 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 466AC2237B; Tue, 20 Oct 2020 07:32:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603179136; bh=lmarhGMgRtdYpO9BC/zBLgxGRIySPhWIx01jkmu4QJQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=DOfmn2Q2kde8SFe2HnKK/9/x0BapwMkE2toRRfFKjrapfOViEZHS+Qh+Qc2ywk/SW 1zLi+zDEtO17Dqhi5G502FMkvKMIm0FsdPIRnWv8igFSdTyGjZCCPncwMQTRWRW5p2 9h8Z+shoYxJcwQTtx9TTLGQo5oSmyZ/SDXhw5r8w= Date: Tue, 20 Oct 2020 09:32:59 +0200 From: Greg KH To: Xu Yilun Cc: Tom Rix , mdf@kernel.org, linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org, lgoncalv@redhat.com, hao.wu@intel.com Subject: Re: [PATCH 1/2] fpga: dfl: add driver_override support Message-ID: <20201020073259.GA3803984@kroah.com> References: <1602828151-24784-1-git-send-email-yilun.xu@intel.com> <1602828151-24784-2-git-send-email-yilun.xu@intel.com> <63d7730b-d9b8-c75d-16f6-3ebb507aabaa@redhat.com> <20201019040612.GA16172@yilunxu-OptiPlex-7050> <20201020071158.GC28746@yilunxu-OptiPlex-7050> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201020071158.GC28746@yilunxu-OptiPlex-7050> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 20, 2020 at 03:11:58PM +0800, Xu Yilun wrote: > I think it is normal case that a driver is successfully registered but > doesn't match any device because it provides no id_table. How is that "normal"? What would ever cause that driver to be bound to a device then? And you better not say userspace is responsible for it... thanks, greg k-h