linux-kernel - Re: [PATCH v3 4/5] iommu: intel: Use generic_iommu_put_resv

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Date:   Thu, 19 Dec 2019 13:47:47 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Lu Baolu <baolu.lu@...ux.intel.com>, Joerg Roedel <joro@...tes.org>
Cc:     Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Will Deacon <will@...nel.org>, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        iommu@...ts.linux-foundation.org,
        Robin Murphy <robin.murphy@....com>,
        David Woodhouse <dwmw2@...radead.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 4/5] iommu: intel: Use generic_iommu_put_resv_regions()

On Thu, Dec 19, 2019 at 09:53:22AM +0800, Lu Baolu wrote:
> Please tweak the title to
> 
> "iommu/vt-d: Use generic_iommu_put_resv_regions()"
> 
> then,
> 
> Acked-by: Lu Baolu <baolu.lu@...ux.intel.com>
> 
> Best regards,
> baolu

Joerg, do you want me to resend with this change or is it more efficient
if you fix up the subject while applying?

Thierry

> On 12/18/19 9:42 PM, Thierry Reding wrote:
> > From: Thierry Reding <treding@...dia.com>
> > 
> > Use the new standard function instead of open-coding it.
> > 
> > Cc: David Woodhouse <dwmw2@...radead.org>
> > Signed-off-by: Thierry Reding <treding@...dia.com>
> > ---
> >   drivers/iommu/intel-iommu.c | 11 +----------
> >   1 file changed, 1 insertion(+), 10 deletions(-)
> > 
> > diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
> > index 42966611a192..a6d5b7cf9183 100644
> > --- a/drivers/iommu/intel-iommu.c
> > +++ b/drivers/iommu/intel-iommu.c
> > @@ -5744,15 +5744,6 @@ static void intel_iommu_get_resv_regions(struct device *device,
> >   	list_add_tail(&reg->list, head);
> >   }
> > -static void intel_iommu_put_resv_regions(struct device *dev,
> > -					 struct list_head *head)
> > -{
> > -	struct iommu_resv_region *entry, *next;
> > -
> > -	list_for_each_entry_safe(entry, next, head, list)
> > -		kfree(entry);
> > -}
> > -
> >   int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct device *dev)
> >   {
> >   	struct device_domain_info *info;
> > @@ -5987,7 +5978,7 @@ const struct iommu_ops intel_iommu_ops = {
> >   	.add_device		= intel_iommu_add_device,
> >   	.remove_device		= intel_iommu_remove_device,
> >   	.get_resv_regions	= intel_iommu_get_resv_regions,
> > -	.put_resv_regions	= intel_iommu_put_resv_regions,
> > +	.put_resv_regions	= generic_iommu_put_resv_regions,
> >   	.apply_resv_region	= intel_iommu_apply_resv_region,
> >   	.device_group		= pci_device_group,
> >   	.dev_has_feat		= intel_iommu_dev_has_feat,
> > 

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