lkml.org 
[lkml]   [2020]   [May]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/2] iommu: calling pci_fixup_iommu in iommu_fwspec_init
On Tue, May 26, 2020 at 07:49:09PM +0800, Zhangfei Gao wrote:
> Calling pci_fixup_iommu in iommu_fwspec_init, which alloc
> iommu_fwnode. Some platform devices appear as PCI but are
> actually on the AMBA bus, and they need fixup in
> drivers/pci/quirks.c handling iommu_fwnode.
> So calling pci_fixup_iommu after iommu_fwnode is allocated.
>
> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
> ---
> drivers/iommu/iommu.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index 7b37542..fb84c42 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -2418,6 +2418,10 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode,
> fwspec->iommu_fwnode = iommu_fwnode;
> fwspec->ops = ops;
> dev_iommu_fwspec_set(dev, fwspec);
> +
> + if (dev_is_pci(dev))
> + pci_fixup_device(pci_fixup_iommu, to_pci_dev(dev));

Why can't the caller do this as it "knows" it is a PCI device at that
point in time, right?

thanks,

greg k-h

\
 
 \ /
  Last update: 2020-05-27 11:03    [W:0.166 / U:4.036 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site