From owner-svn-src-head@freebsd.org Wed Aug 9 01:06:41 2017 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A0810DAB536; Wed, 9 Aug 2017 01:06:41 +0000 (UTC) (envelope-from mw@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 6E56E7FBED; Wed, 9 Aug 2017 01:06:41 +0000 (UTC) (envelope-from mw@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v7916euN010234; Wed, 9 Aug 2017 01:06:40 GMT (envelope-from mw@FreeBSD.org) Received: (from mw@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v7916eC9010233; Wed, 9 Aug 2017 01:06:40 GMT (envelope-from mw@FreeBSD.org) Message-Id: <201708090106.v7916eC9010233@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mw set sender to mw@FreeBSD.org using -f From: Marcin Wojtas Date: Wed, 9 Aug 2017 01:06:40 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r322289 - head/sys/dev/ofw X-SVN-Group: head X-SVN-Commit-Author: mw X-SVN-Commit-Paths: head/sys/dev/ofw X-SVN-Commit-Revision: 322289 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Aug 2017 01:06:41 -0000 Author: mw Date: Wed Aug 9 01:06:40 2017 New Revision: 322289 URL: https://svnweb.freebsd.org/changeset/base/322289 Log: Enable using ofw_bus_find_compatible in early platform code Before this patch function ofw_bus_find_compatible was using memory allocations in order to find compatible node and the property's length. This way there was always a suited buffer for property, however this approach had also disadvantages - ofw_bus_find_compatible couldn't be used when malloc is not available, e.g. during fdt fixup stage. In order to remove the usage limitation of ofw_bus_find_compatible(), this patch modifies the function to use ofw_bus_node_is_compatible() (instead of the one without _int suffix), which uses a fixed buffer on stack instead of dynamic allocations. Submitted by: Patryk Duda Reviewed by: nwhitehorn, cognet (mentor) Approved by: cognet (mentor) Obtained from: Semihalf Differential Revision: https://reviews.freebsd.org/D11880 Modified: head/sys/dev/ofw/ofw_bus_subr.c Modified: head/sys/dev/ofw/ofw_bus_subr.c ============================================================================== --- head/sys/dev/ofw/ofw_bus_subr.c Wed Aug 9 01:04:36 2017 (r322288) +++ head/sys/dev/ofw/ofw_bus_subr.c Wed Aug 9 01:06:40 2017 (r322289) @@ -720,22 +720,14 @@ phandle_t ofw_bus_find_compatible(phandle_t node, const char *onecompat) { phandle_t child, ret; - void *compat; - int len; /* * Traverse all children of 'start' node, and find first with * matching 'compatible' property. */ for (child = OF_child(node); child != 0; child = OF_peer(child)) { - len = OF_getprop_alloc(child, "compatible", 1, &compat); - if (len >= 0) { - ret = ofw_bus_node_is_compatible_int(compat, len, - onecompat); - free(compat, M_OFWPROP); - if (ret != 0) - return (child); - } + if (ofw_bus_node_is_compatible(child, onecompat) != 0) + return (child); ret = ofw_bus_find_compatible(child, onecompat); if (ret != 0)