tree: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next head: 1270e4a51ac22204d1071129caa119d137a0d107 commit: 62e12ec8a4b2e4d5b8e850741d586cb320a17a96 [20/21] Merge branch 'remotes/lorenzo/pci/misc' config: xtensa-allyesconfig (attached as .config) compiler: xtensa-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 62e12ec8a4b2e4d5b8e850741d586cb320a17a96 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=xtensa If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/linux/kernel.h:11, from include/linux/delay.h:22, from drivers/pci/controller/pci-aardvark.c:11: include/linux/scatterlist.h: In function 'sg_set_buf': arch/xtensa/include/asm/page.h:193:9: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] 193 | ((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr) | ^~ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~ arch/xtensa/include/asm/page.h:201:32: note: in expansion of macro 'pfn_valid' 201 | #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) | ^~~~~~~~~ include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~~~~~~~~~~ In file included from ./arch/xtensa/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from arch/xtensa/include/asm/current.h:18, from include/linux/sched.h:12, from include/linux/ratelimit.h:6, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from include/linux/gpio/driver.h:5, from include/asm-generic/gpio.h:11, from include/linux/gpio.h:62, from drivers/pci/controller/pci-aardvark.c:12: include/linux/dma-mapping.h: In function 'dma_map_resource': arch/xtensa/include/asm/page.h:193:9: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] 193 | ((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr) | ^~ include/asm-generic/bug.h:144:27: note: in definition of macro 'WARN_ON_ONCE' 144 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ include/linux/dma-mapping.h:352:19: note: in expansion of macro 'pfn_valid' 352 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr)))) | ^~~~~~~~~ drivers/pci/controller/pci-aardvark.c: In function 'advk_pcie_valid_device': >> drivers/pci/controller/pci-aardvark.c:650:25: error: 'struct advk_pcie' has no member named 'root_bus_nr' 650 | if (bus->number != pcie->root_bus_nr && !advk_pcie_link_up(pcie)) | ^~ -- In file included from include/linux/build_bug.h:5, from include/linux/bitfield.h:10, from drivers/pci/controller/pcie-xilinx-cpm.c:8: include/linux/scatterlist.h: In function 'sg_set_buf': arch/xtensa/include/asm/page.h:193:9: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] 193 | ((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr) | ^~ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~ arch/xtensa/include/asm/page.h:201:32: note: in expansion of macro 'pfn_valid' 201 | #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) | ^~~~~~~~~ include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~~~~~~~~~~ In file included from ./arch/xtensa/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/cpumask.h:14, from include/linux/interrupt.h:8, from drivers/pci/controller/pcie-xilinx-cpm.c:9: include/linux/dma-mapping.h: In function 'dma_map_resource': arch/xtensa/include/asm/page.h:193:9: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] 193 | ((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr) | ^~ include/asm-generic/bug.h:144:27: note: in definition of macro 'WARN_ON_ONCE' 144 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ include/linux/dma-mapping.h:352:19: note: in expansion of macro 'pfn_valid' 352 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr)))) | ^~~~~~~~~ drivers/pci/controller/pcie-xilinx-cpm.c: In function 'xilinx_cpm_pcie_probe': >> drivers/pci/controller/pcie-xilinx-cpm.c:552:8: error: implicit declaration of function 'pci_parse_request_of_pci_ranges' [-Werror=implicit-function-declaration] 552 | err = pci_parse_request_of_pci_ranges(dev, &bridge->windows, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +650 drivers/pci/controller/pci-aardvark.c 8a3ebd8de328301 Zachary Zhang 2018-10-18 639 248d4e59616c632 Thomas Petazzoni 2018-04-06 640 static bool advk_pcie_valid_device(struct advk_pcie *pcie, struct pci_bus *bus, 248d4e59616c632 Thomas Petazzoni 2018-04-06 641 int devfn) 248d4e59616c632 Thomas Petazzoni 2018-04-06 642 { 11e97973607fab2 Rob Herring 2020-07-21 643 if (pci_is_root_bus(bus) && PCI_SLOT(devfn) != 0) 248d4e59616c632 Thomas Petazzoni 2018-04-06 644 return false; 248d4e59616c632 Thomas Petazzoni 2018-04-06 645 70e380250c3621c Pali Rohár 2020-07-02 646 /* 70e380250c3621c Pali Rohár 2020-07-02 647 * If the link goes down after we check for link-up, nothing bad 70e380250c3621c Pali Rohár 2020-07-02 648 * happens but the config access times out. 70e380250c3621c Pali Rohár 2020-07-02 649 */ 70e380250c3621c Pali Rohár 2020-07-02 @650 if (bus->number != pcie->root_bus_nr && !advk_pcie_link_up(pcie)) 70e380250c3621c Pali Rohár 2020-07-02 651 return false; 70e380250c3621c Pali Rohár 2020-07-02 652 248d4e59616c632 Thomas Petazzoni 2018-04-06 653 return true; 248d4e59616c632 Thomas Petazzoni 2018-04-06 654 } 248d4e59616c632 Thomas Petazzoni 2018-04-06 655 :::::: The code at line 650 was first introduced by commit :::::: 70e380250c3621c55ff218cbaf2272830d9dbb1d PCI: aardvark: Don't touch PCIe registers if no card connected :::::: TO: Pali Rohár <pali@xxxxxxxxxx> :::::: CC: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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