Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp4465505pxf; Tue, 16 Mar 2021 14:21:56 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxRR1dIq91mzRPVP6ejNkYzX8kDHluyl7qhYEyOGlFRPZThteUzEFw3w+EEfYbKf3ef1dQz X-Received: by 2002:aa7:c345:: with SMTP id j5mr37424418edr.338.1615929716185; Tue, 16 Mar 2021 14:21:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1615929716; cv=none; d=google.com; s=arc-20160816; b=L3XToyANceBJUOyQLaSB0MTwIcCLtSnC0nFAYRmkS3g6QIgHxHvOsiLozJDlhLrxb2 p83jw2Afy0/XEaOJg43ZLD3oyByud0FE3pWQDm43+Qkk/+DZDCYTwAlIwZ6Nrz3QbKxD lthNhh9+7jHsQAl6ldbasfz/PFdRQiMZJgd+wOL+bML93B1+CjM8pYqTvaZSKaSSUe/x DHoLY89EnmTVnDo+eB4ztdmmgO1wHc3vXo68YhfPdaiF0+Gim7qBh7kxNfXkVn24UhLb xOsy7R9DhjxsNp5C8Wqv0LKKL5q5ERNC/+EPqmYLD59ZlGQ+8WaQspBppJn/6W/vgvae yoXg== 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=Wm2A7JuOgRWG+kHrLHY/1lK4Jsg8L18eaSY0m4T/cDA=; b=ePsGUUe7M5C5fi/azIOZeKeqV/RcLzbZaYIjt/GVyRWKMFTCnEPhnlQdtka7BORxq6 dP/gAPaOfYj+iuXVTH1yZOOKWbckgKlBFXMAefoJbYWJxClb4Ob5T1/BqRGQqTizFmCd G5iJlyK+9cHcgXyy/zFBwtc+J9CA60dUYIDtpE+SFiNrAQu6leUxreD9fYHiHCGIgXGL ns1ey33xim9iHSo1Aoyp2gIUPqmpLmyiDpT9lYqV+Q6CFlenCYGoEyK5XWpf6/yw0f9Y rB4by/wUzeE4cv0NGih66z6I9LV6MUU1+yCl3BRaP4fVPKNbF/L00p/5AbhaeH1c4sjq 4cCg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=usUl6LkK; 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=pass (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 y6si14154528ejp.143.2021.03.16.14.21.33; Tue, 16 Mar 2021 14:21:56 -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=@linuxfoundation.org header.s=korg header.b=usUl6LkK; 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=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235883AbhCPSQw (ORCPT + 99 others); Tue, 16 Mar 2021 14:16:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:57350 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235933AbhCPSQR (ORCPT ); Tue, 16 Mar 2021 14:16:17 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8FFA265131; Tue, 16 Mar 2021 18:16:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615918577; bh=ngUbnGjt2eSCTsQ8RzHWN6s7Gk/4w6ZxOf1sitZL8ho=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=usUl6LkKFhLKh+7zLuCdZImq8GWtlP92D1Q5gslYwEo0Nwo13DW/fVYaR44Bonzin VyTxt3DSipx3hAt2xOkoKasAriRjF8SzYhRMnFdlxo+ONrS8xAeurr96sbCwnQlxO/ n9vI5jpwKtbmnvWKi+vvFNSwqKdv9ww2PrnvtYNw= Date: Tue, 16 Mar 2021 19:16:14 +0100 From: Greg KH To: Mihai Carabas Cc: linux-kernel@vger.kernel.org, arnd@arndb.de, bobo.shaobowang@huawei.com, rdunlap@infradead.org Subject: Re: [PATCH v5 3/3] misc/pvpanic: add PCI driver Message-ID: References: <1615897229-4055-1-git-send-email-mihai.carabas@oracle.com> <1615897229-4055-4-git-send-email-mihai.carabas@oracle.com> <91231b60-d559-5d1e-aff8-303fefc1f25e@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <91231b60-d559-5d1e-aff8-303fefc1f25e@oracle.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 16, 2021 at 08:02:14PM +0200, Mihai Carabas wrote: > La 16.03.2021 19:29, Greg KH a scris: > > On Tue, Mar 16, 2021 at 07:08:38PM +0200, Mihai Carabas wrote: > > > ..snip.. > > > > > +}; > > > > > +static unsigned int capability = PVPANIC_PANICKED | PVPANIC_CRASH_LOADED; > > > > > +static unsigned int events; > > > > > + > > > > > +static ssize_t capability_show(struct device *dev, > > > > > + struct device_attribute *attr, char *buf) > > > > > +{ > > > > > + return sysfs_emit(buf, "%x\n", capability); > > > > A global capability for all devices? No, this needs to be a per-device > > > > attttribute as you are showing it to userspace as such. > > > We can only have a pvpanic-pci device. This is necessary in that case? > > Why would it not be? Why constrain yourself to something that someone > > will only have to fix sometime in the future? > > Agree. But why this got in in Jan2021 for pvpanic-mmio.c (ex. pvpanic.c) > like this :)? > Because I didn't object strong enough :)