This patch disable the use of nv_msi_ht_cap_quirk_leaf quirk on arm and
arm64 NVIDIA devices such as Tegra
This fixes the following output:
"pci 0000:00:01.0: nv_msi_ht_cap_quirk didn't locate host bridge"
as experienced on a Trimslice device with PCI host bridge enabled
v3: exclude the quirk for arm and arm64 instead of only for x86
v2: use __maybe_unused to avoid a warning on nv_msi_ht_cap_quirk_leaf
Signed-off-by: Nicolas Chauvet <kwizart@xxxxxxxxx>
Reviewed-by: Manikanta Maddireddy <mmaddireddy@xxxxxxxxxx>
Acked-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/pci/quirks.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index a59ad09ce911..1ac65f09d7ee 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2811,12 +2811,15 @@ static void nv_msi_ht_cap_quirk_all(struct pci_dev *dev)
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
-static void nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
+static void __maybe_unused nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
{
return __nv_msi_ht_cap_quirk(dev, 0);
}
+/* HyperTransport is not relevant on theses arches */
+#if !IS_ENABLED(CONFIG_ARM) && !IS_ENABLED(CONFIG_ARM64)
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
+#endif
static void quirk_msi_intx_disable_bug(struct pci_dev *dev)
{
--
2.17.2
