linux-kernel - Re: Unable to mount NFSROOT: pcie change breaks e1000?

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Message-ID: <503587F4.3090907@huawei.com>
Date:	Thu, 23 Aug 2012 09:31:32 +0800
From:	Jiang Liu <jiang.liu@...wei.com>
To:	Fengguang Wu <fengguang.wu@...el.com>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Unable to mount NFSROOT: pcie change breaks e1000?

Hi Fengguang,
	Could you please help to verify whether following patch
fixes the issue?
	Thanks!

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index f6b491b..fac08f5 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -842,6 +842,9 @@ static int pci_save_pcie_state(struct pci_dev *dev)
        struct pci_cap_saved_state *save_state;
        u16 *cap;

+       if (!pci_is_pcie(dev))
+               return 0;
+
        save_state = pci_find_saved_cap(dev, PCI_CAP_ID_EXP);
        if (!save_state) {
                dev_err(&dev->dev, "buffer not found in %s\n", __func__);

On 2012-8-23 8:46, Fengguang Wu wrote:
> buffer not found


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