[kbuild-all] [linuxtv-media:master 141/161] drivers/vfio/pci/vfio_pci_rdwr.c:240:11: error: implicit declaration of function 'ioport_map'

Hi Mauro, First bad commit (maybe != root cause): tree: git://linuxtv.org/media_tree.git master head: 63735af86d645a47903f912ae89957507edd917b commit: df823a8208c434eee6e4e9aa016c956d0968e2e2 [141/161] media: cec: rename CEC platform drivers config options config: nios2-allmodconfig (attached as .config) compiler: nios2-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout df823a8208c434eee6e4e9aa016c956d0968e2e2 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): drivers/vfio/pci/vfio_pci_rdwr.c: In function 'vfio_pci_vga_rw': 240 | iomem = ioport_map(0x3b0, 0x3bb - 0x3b0 + 1); | ^~~~~~~~~~ 240 | iomem = ioport_map(0x3b0, 0x3bb - 0x3b0 + 1); | ^ drivers/vfio/pci/vfio_pci_rdwr.c:247:9: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 247 | iomem = ioport_map(0x3c0, 0x3df - 0x3c0 + 1); | ^ 261 | is_ioport ? ioport_unmap(iomem) : iounmap(iomem); | ^~~~~~~~~~~~ | iommu_unmap cc1: some warnings being treated as errors -- drivers/gpio/gpio-amd8111.c: In function 'amd_gpio_init': 215 | gp.pm = ioport_map(gp.pmbase + PMBASE_OFFSET, PMBASE_SIZE); | ^~~~~~~~~~ | ioremap 215 | gp.pm = ioport_map(gp.pmbase + PMBASE_OFFSET, PMBASE_SIZE); | ^ 231 | ioport_unmap(gp.pm); | ^~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/ioport_map +240 drivers/vfio/pci/vfio_pci_rdwr.c 84237a826b261d Alex Williamson 2013-02-18 213 84237a826b261d Alex Williamson 2013-02-18 214 ssize_t vfio_pci_vga_rw(struct vfio_pci_device *vdev, char __user *buf, 84237a826b261d Alex Williamson 2013-02-18 215 size_t count, loff_t *ppos, bool iswrite) 84237a826b261d Alex Williamson 2013-02-18 216 { 84237a826b261d Alex Williamson 2013-02-18 217 int ret; 84237a826b261d Alex Williamson 2013-02-18 218 loff_t off, pos = *ppos & VFIO_PCI_OFFSET_MASK; 84237a826b261d Alex Williamson 2013-02-18 219 void __iomem *iomem = NULL; 84237a826b261d Alex Williamson 2013-02-18 220 unsigned int rsrc; 84237a826b261d Alex Williamson 2013-02-18 221 bool is_ioport; 84237a826b261d Alex Williamson 2013-02-18 222 ssize_t done; 84237a826b261d Alex Williamson 2013-02-18 223 84237a826b261d Alex Williamson 2013-02-18 224 if (!vdev->has_vga) 84237a826b261d Alex Williamson 2013-02-18 225 return -EINVAL; 84237a826b261d Alex Williamson 2013-02-18 226 45e86971448943 Arnd Bergmann 2016-12-30 227 if (pos > 0xbfffful) 45e86971448943 Arnd Bergmann 2016-12-30 228 return -EINVAL; 45e86971448943 Arnd Bergmann 2016-12-30 229 45e86971448943 Arnd Bergmann 2016-12-30 230 switch ((u32)pos) { 84237a826b261d Alex Williamson 2013-02-18 231 case 0xa0000 ... 0xbffff: 84237a826b261d Alex Williamson 2013-02-18 232 count = min(count, (size_t)(0xc0000 - pos)); 4bdc0d676a6431 Christoph Hellwig 2020-01-06 233 iomem = ioremap(0xa0000, 0xbffff - 0xa0000 + 1); 84237a826b261d Alex Williamson 2013-02-18 234 off = pos - 0xa0000; 84237a826b261d Alex Williamson 2013-02-18 235 rsrc = VGA_RSRC_LEGACY_MEM; 84237a826b261d Alex Williamson 2013-02-18 236 is_ioport = false; 84237a826b261d Alex Williamson 2013-02-18 237 break; 84237a826b261d Alex Williamson 2013-02-18 238 case 0x3b0 ... 0x3bb: 84237a826b261d Alex Williamson 2013-02-18 239 count = min(count, (size_t)(0x3bc - pos)); 84237a826b261d Alex Williamson 2013-02-18 @240 iomem = ioport_map(0x3b0, 0x3bb - 0x3b0 + 1); 84237a826b261d Alex Williamson 2013-02-18 241 off = pos - 0x3b0; 84237a826b261d Alex Williamson 2013-02-18 242 rsrc = VGA_RSRC_LEGACY_IO; 84237a826b261d Alex Williamson 2013-02-18 243 is_ioport = true; 84237a826b261d Alex Williamson 2013-02-18 244 break; 84237a826b261d Alex Williamson 2013-02-18 245 case 0x3c0 ... 0x3df: 84237a826b261d Alex Williamson 2013-02-18 246 count = min(count, (size_t)(0x3e0 - pos)); 84237a826b261d Alex Williamson 2013-02-18 247 iomem = ioport_map(0x3c0, 0x3df - 0x3c0 + 1); 84237a826b261d Alex Williamson 2013-02-18 248 off = pos - 0x3c0; 84237a826b261d Alex Williamson 2013-02-18 249 rsrc = VGA_RSRC_LEGACY_IO; 84237a826b261d Alex Williamson 2013-02-18 250 is_ioport = true; 84237a826b261d Alex Williamson 2013-02-18 251 break; 84237a826b261d Alex Williamson 2013-02-18 252 default: 84237a826b261d Alex Williamson 2013-02-18 253 return -EINVAL; 84237a826b261d Alex Williamson 2013-02-18 254 } 84237a826b261d Alex Williamson 2013-02-18 255 84237a826b261d Alex Williamson 2013-02-18 256 if (!iomem) 84237a826b261d Alex Williamson 2013-02-18 257 return -ENOMEM; 84237a826b261d Alex Williamson 2013-02-18 258 84237a826b261d Alex Williamson 2013-02-18 259 ret = vga_get_interruptible(vdev->pdev, rsrc); 84237a826b261d Alex Williamson 2013-02-18 260 if (ret) { 84237a826b261d Alex Williamson 2013-02-18 @261 is_ioport ? ioport_unmap(iomem) : iounmap(iomem); 84237a826b261d Alex Williamson 2013-02-18 262 return ret; 84237a826b261d Alex Williamson 2013-02-18 263 } 84237a826b261d Alex Williamson 2013-02-18 264 84237a826b261d Alex Williamson 2013-02-18 265 done = do_io_rw(iomem, buf, off, count, 0, 0, iswrite); 84237a826b261d Alex Williamson 2013-02-18 266 84237a826b261d Alex Williamson 2013-02-18 267 vga_put(vdev->pdev, rsrc); 84237a826b261d Alex Williamson 2013-02-18 268 84237a826b261d Alex Williamson 2013-02-18 269 is_ioport ? ioport_unmap(iomem) : iounmap(iomem); 84237a826b261d Alex Williamson 2013-02-18 270 84237a826b261d Alex Williamson 2013-02-18 271 if (done >= 0) 84237a826b261d Alex Williamson 2013-02-18 272 *ppos += done; 84237a826b261d Alex Williamson 2013-02-18 273 84237a826b261d Alex Williamson 2013-02-18 274 return done; 84237a826b261d Alex Williamson 2013-02-18 275 } 30656177c40804 Alex Williamson 2018-03-21 276 :::::: The code at line 240 was first introduced by commit :::::: 84237a826b261de7ddd3d09ee53ee68cb4138937 vfio-pci: Add support for VGA region access :::::: TO: Alex Williamson <alex.williamson(a)redhat.com&gt; :::::: CC: Alex Williamson <alex.williamson(a)redhat.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org