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dkim=pass header.d=deltatee.com header.s=20200525 header.b=MMW2sBdz; spf=pass (imf14.hostedemail.com: domain of gunthorp@deltatee.com designates 204.191.154.188 as permitted sender) smtp.mailfrom=gunthorp@deltatee.com; dmarc=none X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 52469C0007E6 X-Stat-Signature: 4rxt9pex7uoaf89jkzyorbx8ioc4cd1t X-HE-Tag: 1620945149-722679 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: All callers of pci_p2pdma_map_type() have a struct dev_pgmap and a struct device (of the client doing the DMA transfer). Thus move the conversion to struct pci_devs for the provider and client into this function. Signed-off-by: Logan Gunthorpe --- drivers/pci/p2pdma.c | 29 +++++++++++------------------ 1 file changed, 11 insertions(+), 18 deletions(-) diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c index 4034ffa0eb06..6c2057cd3f37 100644 --- a/drivers/pci/p2pdma.c +++ b/drivers/pci/p2pdma.c @@ -844,14 +844,21 @@ void pci_p2pmem_publish(struct pci_dev *pdev, bool = publish) } EXPORT_SYMBOL_GPL(pci_p2pmem_publish); =20 -static enum pci_p2pdma_map_type pci_p2pdma_map_type(struct pci_dev *prov= ider, - struct pci_dev *client) +static enum pci_p2pdma_map_type pci_p2pdma_map_type(struct dev_pagemap *= pgmap, + struct device *dev) { + struct pci_dev *provider =3D to_p2p_pgmap(pgmap)->provider; enum pci_p2pdma_map_type ret; + struct pci_dev *client; =20 if (!provider->p2pdma) return PCI_P2PDMA_MAP_NOT_SUPPORTED; =20 + if (!dev_is_pci(dev)) + return PCI_P2PDMA_MAP_NOT_SUPPORTED; + + client =3D to_pci_dev(dev); + ret =3D xa_to_value(xa_load(&provider->p2pdma->map_types, map_types_idx(client))); if (ret =3D=3D PCI_P2PDMA_MAP_UNKNOWN) @@ -892,14 +899,8 @@ int pci_p2pdma_map_sg_attrs(struct device *dev, stru= ct scatterlist *sg, { struct pci_p2pdma_pagemap *p2p_pgmap =3D to_p2p_pgmap(sg_page(sg)->pgmap); - struct pci_dev *client; - - if (WARN_ON_ONCE(!dev_is_pci(dev))) - return 0; =20 - client =3D to_pci_dev(dev); - - switch (pci_p2pdma_map_type(p2p_pgmap->provider, client)) { + switch (pci_p2pdma_map_type(sg_page(sg)->pgmap, dev)) { case PCI_P2PDMA_MAP_THRU_HOST_BRIDGE: return dma_map_sg_attrs(dev, sg, nents, dir, attrs); case PCI_P2PDMA_MAP_BUS_ADDR: @@ -922,17 +923,9 @@ EXPORT_SYMBOL_GPL(pci_p2pdma_map_sg_attrs); void pci_p2pdma_unmap_sg_attrs(struct device *dev, struct scatterlist *s= g, int nents, enum dma_data_direction dir, unsigned long attrs) { - struct pci_p2pdma_pagemap *p2p_pgmap =3D - to_p2p_pgmap(sg_page(sg)->pgmap); enum pci_p2pdma_map_type map_type; - struct pci_dev *client; - - if (WARN_ON_ONCE(!dev_is_pci(dev))) - return; - - client =3D to_pci_dev(dev); =20 - map_type =3D pci_p2pdma_map_type(p2p_pgmap->provider, client); + map_type =3D pci_p2pdma_map_type(sg_page(sg)->pgmap, dev); =20 if (map_type =3D=3D PCI_P2PDMA_MAP_THRU_HOST_BRIDGE) dma_unmap_sg_attrs(dev, sg, nents, dir, attrs); --=20 2.20.1