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PCI: pciehp: ignore undefined bit in link status register

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Bit 10 in Link Status register used to be defined as Training Error in
the PCI Express 1.0a specification. But it was removed by Training Error
ECN and is no longer defined. So pciehp must ignore the value read from
it.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Kenji Kaneshige 2008-12-19 15:18:10 +09:00 committed by Jesse Barnes
parent 46bbdfa44c
commit 67f6533802
1 changed files with 1 additions and 2 deletions
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3
drivers/pci/hotplug/pciehp_hpc.c
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@ -419,8 +419,7 @@ static int hpc_check_lnk_status(struct controller *ctrl)
} }
ctrl_dbg(ctrl, "%s: lnk_status = %x\n", __func__, lnk_status); ctrl_dbg(ctrl, "%s: lnk_status = %x\n", __func__, lnk_status);
if ( (lnk_status & LNK_TRN) || (lnk_status & LNK_TRN_ERR) || if ((lnk_status & LNK_TRN) || !(lnk_status & NEG_LINK_WD)) {
!(lnk_status & NEG_LINK_WD)) {
ctrl_err(ctrl, "Link Training Error occurs \n"); ctrl_err(ctrl, "Link Training Error occurs \n");
retval = -1; retval = -1;
return retval; return retval;