On 12/10/20 7:11 PM, Lorenzo Pieralisi wrote:
[...]
diff --git a/drivers/pci/controller/pcie-rcar-host.c b/drivers/pci/controller/pcie-rcar-host.c
index 1194d5f3341b..ac5c7d7573a6 100644
--- a/drivers/pci/controller/pcie-rcar-host.c
+++ b/drivers/pci/controller/pcie-rcar-host.c
@@ -753,7 +753,7 @@ static int rcar_pcie_enable_msi(struct rcar_pcie_host *host)
}
/* setup MSI data target */
- msi->pages = __get_free_pages(GFP_KERNEL, 0);
+ msi->pages = __get_free_pages(GFP_KERNEL | GFP_DMA32, 0);
This does not do what you want on !CONFIG_ZONE_DMA32 (ie arm LPAE).
How come? I would expect GFP_DMA32 allocates a buffer below 4 GiB in any
case.
[...]
