On 10/20/20 9:47 AM, Geert Uytterhoeven wrote: > Hi Marek, Hi, [...] >> --- 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); > > BTW, can this fail, especially now this is allocated from a more > limited pool? I am pretty sure this can fail on systems that don't have DRAM below 4 GiB , but that is never the case on any hardware with this controller. [...]
