powerpc/eeh: Rely on dev->link_active_reporting

[ Upstream commit 1541a21305ceb10fcf3f7cbb23f3e1a00bbf1789 ]

Use dev->link_active_reporting to determine whether Data Link Layer Link
Active Reporting is available rather than re-retrieving the capability.

Link: https://lore.kernel.org/r/alpine.DEB.2.21.2305310124100.59226@angie.orcam.me.uk
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Stable-dep-of: 1010b4c012b0 ("powerpc/eeh: Make EEH driver device hotplug safe")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c
index e4624d78962944a6d8c8eeffe75f9e07cc07e3c6..7d1b50599dd6c20363fc0bf57ba7ae9443eb5d93 100644 (file)
--- a/arch/powerpc/kernel/eeh_pe.c
+++ b/arch/powerpc/kernel/eeh_pe.c
@@ -671,9 +671,8 @@ static void eeh_bridge_check_link(struct eeh_dev *edev)
        eeh_ops->write_config(edev, cap + PCI_EXP_LNKCTL, 2, val);
 
        /* Check link */
-       eeh_ops->read_config(edev, cap + PCI_EXP_LNKCAP, 4, &val);
-       if (!(val & PCI_EXP_LNKCAP_DLLLARC)) {
-               eeh_edev_dbg(edev, "No link reporting capability (0x%08x) \n", val);
+       if (!edev->pdev->link_active_reporting) {
+               eeh_edev_dbg(edev, "No link reporting capability\n");
                msleep(1000);
                return;
        }