tree: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci/peer-to-peer head: 9e884ffa1d39eba6c8a5f52e94acdc6e20e5007a commit: 56f0e2bc622a5f4750abfb8b4430c8dd46261673 [1/2] PCI/P2PDMA: Match interface changes to devm_memremap_pages() config: x86_64-randconfig-e1-12091838 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: git checkout 56f0e2bc622a5f4750abfb8b4430c8dd46261673 # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers//pci/p2pdma.c: In function 'pci_p2pdma_add_resource': >> drivers//pci/p2pdma.c:199:7: error: 'struct dev_pagemap' has no member named 'kill' pgmap->kill = pci_p2pdma_percpu_kill; ^~ vim +199 drivers//pci/p2pdma.c 152 153 /** 154 * pci_p2pdma_add_resource - add memory for use as p2p memory 155 * @pdev: the device to add the memory to 156 * @bar: PCI BAR to add 157 * @size: size of the memory to add, may be zero to use the whole BAR 158 * @offset: offset into the PCI BAR 159 * 160 * The memory will be given ZONE_DEVICE struct pages so that it may 161 * be used with any DMA request. 162 */ 163 int pci_p2pdma_add_resource(struct pci_dev *pdev, int bar, size_t size, 164 u64 offset) 165 { 166 struct dev_pagemap *pgmap; 167 void *addr; 168 int error; 169 170 if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) 171 return -EINVAL; 172 173 if (offset >= pci_resource_len(pdev, bar)) 174 return -EINVAL; 175 176 if (!size) 177 size = pci_resource_len(pdev, bar) - offset; 178 179 if (size + offset > pci_resource_len(pdev, bar)) 180 return -EINVAL; 181 182 if (!pdev->p2pdma) { 183 error = pci_p2pdma_setup(pdev); 184 if (error) 185 return error; 186 } 187 188 pgmap = devm_kzalloc(&pdev->dev, sizeof(*pgmap), GFP_KERNEL); 189 if (!pgmap) 190 return -ENOMEM; 191 192 pgmap->res.start = pci_resource_start(pdev, bar) + offset; 193 pgmap->res.end = pgmap->res.start + size - 1; 194 pgmap->res.flags = pci_resource_flags(pdev, bar); 195 pgmap->ref = &pdev->p2pdma->devmap_ref; 196 pgmap->type = MEMORY_DEVICE_PCI_P2PDMA; 197 pgmap->pci_p2pdma_bus_offset = pci_bus_address(pdev, bar) - 198 pci_resource_start(pdev, bar); > 199 pgmap->kill = pci_p2pdma_percpu_kill; 200 201 addr = devm_memremap_pages(&pdev->dev, pgmap); 202 if (IS_ERR(addr)) { 203 error = PTR_ERR(addr); 204 goto pgmap_free; 205 } 206 207 error = gen_pool_add_virt(pdev->p2pdma->pool, (unsigned long)addr, 208 pci_bus_address(pdev, bar) + offset, 209 resource_size(&pgmap->res), dev_to_node(&pdev->dev)); 210 if (error) 211 goto pgmap_free; 212 213 pci_info(pdev, "added peer-to-peer DMA memory %pR\n", 214 &pgmap->res); 215 216 return 0; 217 218 pgmap_free: 219 devm_kfree(&pdev->dev, pgmap); 220 return error; 221 } 222 EXPORT_SYMBOL_GPL(pci_p2pdma_add_resource); 223 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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