linux-kernel - Re: [git pull] PCI changes for 2.6.34

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Date:	Sun, 28 Feb 2010 15:49:39 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [git pull] PCI changes for 2.6.34  - pci rom rom fail list

please check

[PATCH] pci: don't reassign to ROM res if it is not going to be enabled

Signed-off-by: Yinghai Lu <yinghai@...nel.org>

---
 drivers/pci/setup-bus.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

Index: linux-2.6/drivers/pci/setup-bus.c
===================================================================
--- linux-2.6.orig/drivers/pci/setup-bus.c
+++ linux-2.6/drivers/pci/setup-bus.c
@@ -101,9 +101,17 @@ static void __assign_resources_sorted(st
 	for (list = head->next; list;) {
 		res = list->res;
 		idx = res - &list->dev->resource[0];
+
 		if (pci_assign_resource(list->dev, idx)) {
-			if (fail_head && !pci_is_root_bus(list->dev->bus))
-				add_to_failed_list(fail_head, list->dev, res);
+			if (fail_head && !pci_is_root_bus(list->dev->bus)) {
+				/*
+				 * if the failed res is for ROM BAR, and it will
+				 * be enabled later, don't add it to the list
+				 */
+				if (!((idx == PCI_ROM_RESOURCE) &&
+				      (!(res->flags & IORESOURCE_ROM_ENABLE))))
+					add_to_failed_list(fail_head, list->dev, res);
+			}
 			res->start = 0;
 			res->end = 0;
 			res->flags = 0;

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