* Kirti Wankhede <kwankh...@nvidia.com> [2016-11-05 02:40:44 +0530]:
Hi Kirti,
[...]
> diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
> index 8d64528dcc22..e511073446a0 100644
> --- a/drivers/vfio/vfio_iommu_type1.c
> +++ b/drivers/vfio/vfio_iommu_type1.c
[...]
> +static int vfio_pfn_account(struct vfio_addr_space *addr_space,
> + unsigned long pfn)
> +{
> + struct vfio_pfn *p;
> + int ret = 1;
> +
> + mutex_lock(&addr_space->pfn_list_lock);
> + p = vfio_find_pfn(addr_space, pfn);
> + if (p)
> + ret = 0;
> + mutex_unlock(&addr_space->pfn_list_lock);
> + return ret;
> +}
We could save a local variables(@ret) here by:
return (p ? 0 : 1);
> +
> struct vwork {
> struct mm_struct *mm;
> long npage;
[...]
--
Dong Jia
