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authorMatthew Garrett <mjg@redhat.com>2012-03-06 13:41:49 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-03-19 08:57:43 -0700
commit9217bfbbade56ef9dfee88773c2105e619028fa1 (patch)
tree1d0f0db2f60226a2c994b8d0a0bf106e3806b94a /drivers/pci
parent5bcb3f882ab97f3ebb4c4abd435704ad24c565cb (diff)
PCI: ignore pre-1.1 ASPM quirking when ASPM is disabled
commit 4949be16822e92a18ea0cc1616319926628092ee upstream. Right now we won't touch ASPM state if ASPM is disabled, except in the case where we find a device that appears to be too old to reliably support ASPM. Right now we'll clear it in that case, which is almost certainly the wrong thing to do. The easiest way around this is just to disable the blacklisting when ASPM is disabled. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pcie/aspm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index e25af67f685d..56a696662c38 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -500,6 +500,9 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
int pos;
u32 reg32;
+ if (aspm_disabled)
+ return 0;
+
/*
* Some functions in a slot might not all be PCIe functions,
* very strange. Disable ASPM for the whole slot