From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760671Ab0GWUJK (ORCPT ); Fri, 23 Jul 2010 16:09:10 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:40872 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752006Ab0GWUJG (ORCPT ); Fri, 23 Jul 2010 16:09:06 -0400 Subject: [PATCH] of: Fix phandle endian issues To: jonas@southpole.se, sfr@canb.auug.org.au, monstr@monstr.eu, microblaze-uclinux@itee.uq.edu.au, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, benh@kernel.crashing.org, sparclinux@vger.kernel.org, davem@davemloft.net From: Grant Likely Date: Fri, 23 Jul 2010 14:09:01 -0600 Message-ID: <20100723200901.19485.35303.stgit@angua> User-Agent: StGit/0.15 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The flat tree code wasn't fixing the endianness on phandle values when unflattening the tree, and the code in drivers/of wasn't always doing a be32_to_cpu before trying to dereference the phandle values. This patch fixes them. Signed-off-by: Grant Likely --- drivers/of/base.c | 12 ++++++------ drivers/of/fdt.c | 4 ++-- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/of/base.c b/drivers/of/base.c index e3f7af8..aa80525 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -605,14 +605,14 @@ EXPORT_SYMBOL(of_find_node_by_phandle); struct device_node * of_parse_phandle(struct device_node *np, const char *phandle_name, int index) { - const phandle *phandle; + const __be32 *phandle; int size; phandle = of_get_property(np, phandle_name, &size); if ((!phandle) || (size < sizeof(*phandle) * (index + 1))) return NULL; - return of_find_node_by_phandle(phandle[index]); + return of_find_node_by_phandle(be32_to_cpup(phandle + index)); } EXPORT_SYMBOL(of_parse_phandle); @@ -668,16 +668,16 @@ int of_parse_phandles_with_args(struct device_node *np, const char *list_name, while (list < list_end) { const __be32 *cells; - const phandle *phandle; + phandle phandle; - phandle = list++; + phandle = be32_to_cpup(list++); args = list; /* one cell hole in the list = <>; */ - if (!*phandle) + if (!phandle) goto next; - node = of_find_node_by_phandle(*phandle); + node = of_find_node_by_phandle(phandle); if (!node) { pr_debug("%s: could not find phandle\n", np->full_name); diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index d61fda8..f3a7b4f 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -320,13 +320,13 @@ unsigned long __init unflatten_dt_node(unsigned long mem, if ((strcmp(pname, "phandle") == 0) || (strcmp(pname, "linux,phandle") == 0)) { if (np->phandle == 0) - np->phandle = *((u32 *)*p); + np->phandle = be32_to_cpup((__be32*)*p); } /* And we process the "ibm,phandle" property * used in pSeries dynamic device tree * stuff */ if (strcmp(pname, "ibm,phandle") == 0) - np->phandle = *((u32 *)*p); + np->phandle = be32_to_cpup((__be32 *)*p); pp->name = pname; pp->length = sz; pp->value = (void *)*p;