On Thu, 2010-03-11 at 10:57 +0800, Wu Zhangjin wrote:
> From: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
>
> Changes from the old version:
> o Using raw spinlock instead of spinlock as suggested by David Daney.
[...]
> --- a/arch/mips/pci/ops-loongson2.c
> +++ b/arch/mips/pci/ops-loongson2.c
> @@ -180,15 +180,21 @@ struct pci_ops loongson_pci_ops = {
> };
>
> #ifdef CONFIG_CS5536
> +DEFINE_RAW_SPINLOCK(msr_lock);
> +
> void _rdmsr(u32 msr, u32 *hi, u32 *lo)
> {
> struct pci_bus bus = {
> .number = PCI_BUS_CS5536
> };
> u32 devfn = PCI_DEVFN(PCI_IDSEL_CS5536, 0);
> + unsigned long flags;
> +
> + spin_lock_irqsave(&msr_lock, flags);
Please ignore this patch for the operations should be raw_ too.
Regards,
Wu Zhangjin
