linux-kernel - [PATCH 4/5] hv: Reverse order of resources in hyperv

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Message-Id: <1456349042-16275-5-git-send-email-jakeo@microsoft.com>
Date:	Wed, 24 Feb 2016 21:24:01 +0000
From:	jakeo@...rosoft.com
To:	linux-pci@...r.kernel.org, gregkh@...uxfoundation.org,
	kys@...rosoft.com, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
	vkuznets@...hat.com, haiyangz@...rosoft.com, haddenh@...rosoft.com
Cc:	Jake Oshins <jakeo@...rosoft.com>
Subject: [PATCH 4/5] hv: Reverse order of resources in hyperv_mmio

From: Jake Oshins <jakeo@...rosoft.com>

A patch later in this series allocates child nodes
in this resource tree.  For that to work, this tree
needs to be sorted in ascending order.

Signed-off-by: Jake Oshins <jakeo@...rosoft.com>
---
 drivers/hv/vmbus_drv.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 1da18e1..b090548 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1090,7 +1090,6 @@ static acpi_status vmbus_walk_resources(struct acpi_resource *res, void *ctx)
 	new_res->end = end;
 
 	/*
-	 * Stick ranges from higher in address space at the front of the list.
 	 * If two ranges are adjacent, merge them.
 	 */
 	do {
@@ -1111,7 +1110,7 @@ static acpi_status vmbus_walk_resources(struct acpi_resource *res, void *ctx)
 			break;
 		}
 
-		if ((*old_res)->end < new_res->start) {
+		if ((*old_res)->start > new_res->end) {
 			new_res->sibling = *old_res;
 			if (prev_res)
 				(*prev_res)->sibling = new_res;
-- 
1.9.1