linux-kernel - [PATCH 05/23] PCI: clean up rescan_bus_bridge

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Message-Id: <1331018040-30725-6-git-send-email-yinghai@kernel.org>
Date:	Mon,  5 Mar 2012 23:13:42 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>, x86 <x86@...nel.org>
Cc:	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 05/23] PCI: clean up rescan_bus_bridge_resize

Should only use it with bridge instead of bus.
it could get new subordinate. so can not use it with reguar bus.

in that case, use may need to make all children devices get removed already.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
---
 drivers/pci/pci-sysfs.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index d5c8ffb..2049b2f 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -337,7 +337,7 @@ dev_bridge_rescan_store(struct device *dev, struct device_attribute *attr,
 
 	if (val) {
 		mutex_lock(&pci_remove_rescan_mutex);
-		pci_rescan_bus(pdev->subordinate);
+		pci_rescan_bus_bridge_resize(pdev);
 		mutex_unlock(&pci_remove_rescan_mutex);
 	}
 	return count;
@@ -387,10 +387,7 @@ dev_bus_rescan_store(struct device *dev, struct device_attribute *attr,
 
 	if (val) {
 		mutex_lock(&pci_remove_rescan_mutex);
-		if (!pci_is_root_bus(bus) && list_empty(&bus->devices))
-			pci_rescan_bus_bridge_resize(bus->self);
-		else
-			pci_rescan_bus(bus);
+		pci_rescan_bus(bus);
 		mutex_unlock(&pci_remove_rescan_mutex);
 	}
 	return count;
-- 
1.7.7

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