linux-kernel - [PATCH 1/1] PCI: xgene: Allow config access to Root Port even when link is down

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Message-Id: <1434653139-14461-1-git-send-email-dhdang@apm.com>
Date:	Thu, 18 Jun 2015 11:45:39 -0700
From:	Duc Dang <dhdang@....com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, Tanmay Inamdar <tinamdar@....com>,
	patches@....com, Duc Dang <dhdang@....com>
Subject: [PATCH 1/1] PCI: xgene: Allow config access to Root Port even when link is down

Even if a Root Port's link is down, we should still be able to access the
Port's configuration space.

Suggested-by: Bjorn Helgaas <bhelgaas@...gle.com>
Signed-off-by: Duc Dang <dhdang@....com>
Signed-off-by: Tanmay Inamdar <tinamdar@....com>
---
 drivers/pci/host/pci-xgene.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index 7e3cf28..2e66c87 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -139,7 +139,7 @@ static void __iomem *xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn,
 {
 	struct xgene_pcie_port *port = bus->sysdata;
 
-	if ((pci_is_root_bus(bus) && devfn != 0) || !port->link_up ||
+	if ((pci_is_root_bus(bus) && devfn != 0) ||
 	    xgene_pcie_hide_rc_bars(bus, offset))
 		return NULL;
 
-- 
1.9.1

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