Re: [PATCH] mvebu : pcie: dt: potential issue in range parsing

From: Thomas Petazzoni
Date: Wed Feb 05 2014 - 10:47:24 EST


Dear Jean-Jacques Hiblot,

On Fri, 10 Jan 2014 11:23:51 +0100, Jean-Jacques Hiblot wrote:
> The second parameter of of_read_number is not the index, but a size.
> As it happens, in this case it may work just fine because of the the conversion
> to u32 and the favorable endianness on this architecture.
>
> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@xxxxxxxxxxxxxxx>
> ---
> drivers/pci/host/pci-mvebu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
> index c269e43..877e8ce 100644
> --- a/drivers/pci/host/pci-mvebu.c
> +++ b/drivers/pci/host/pci-mvebu.c
> @@ -768,7 +768,7 @@ static int mvebu_get_tgt_attr(struct device_node *np, int devfn,
>
> for (i = 0; i < nranges; i++) {
> u32 flags = of_read_number(range, 1);
> - u32 slot = of_read_number(range, 2);
> + u32 slot = of_read_number(range + 1, 1);
> u64 cpuaddr = of_read_number(range + na, pna);
> unsigned long rtype;
>

Sorry for the long delay, and thanks for the fix!

Acked-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Tested-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>

(on Armada 370, with PCIe cards plugged in)

Thanks!

Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/