Hi Jake, [auto build test WARNING on pci/next] [also build test WARNING on v4.4-rc4 next-20151209] url: https://github.com/0day-ci/linux/commits/jakeo-microsoft-com/PCI-hv-New-paravirtual-PCI-front-end-for-Hyper-V-VMs/20151210-035122 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next config: i386-allmodconfig (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): drivers/pci/host/hv_pcifront.c: In function 'prepopulate_bars': drivers/pci/host/hv_pcifront.c:1094:23: warning: right shift count >= width of type [-Wshift-count-overflow] (u32)(high_base >> 32)); ^ drivers/pci/host/hv_pcifront.c: In function 'hv_pci_onchannelcallback': drivers/pci/host/hv_pcifront.c:1627:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] comp_packet = (struct pci_packet *)req_id; ^ In file included from include/linux/printk.h:6:0, from include/linux/kernel.h:13, from drivers/pci/host/hv_pcifront.c:21: drivers/pci/host/hv_pcifront.c: In function 'hv_pci_allocate_bridge_windows': >> include/linux/kern_levels.h:4:18: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'resource_size_t {aka unsigned int}' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/kern_levels.h:10:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^ include/linux/printk.h:252:9: note: in expansion of macro 'KERN_ERR' printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) ^ >> drivers/pci/host/hv_pcifront.c:1785:4: note: in expansion of macro 'pr_err' pr_err("Need %llx of low MMIO space. " ^ drivers/pci/host/hv_pcifront.c:1800:8: warning: large integer implicitly truncated to unsigned type [-Woverflow] 0x100000000, -1, ^ In file included from include/linux/printk.h:6:0, from include/linux/kernel.h:13, from drivers/pci/host/hv_pcifront.c:21: >> include/linux/kern_levels.h:4:18: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'resource_size_t {aka unsigned int}' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/kern_levels.h:10:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^ include/linux/printk.h:252:9: note: in expansion of macro 'KERN_ERR' printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) ^ drivers/pci/host/hv_pcifront.c:1804:4: note: in expansion of macro 'pr_err' pr_err("Need %llx of high MMIO space. " ^ vim +/pr_err +1785 drivers/pci/host/hv_pcifront.c 1769 * @hbus: Root PCI bus, as understood by this driver 1770 * 1771 * Return: 0 on success, -errno on failure 1772 */ 1773 static int hv_pci_allocate_bridge_windows(struct hv_pcibus_device *hbus) 1774 { 1775 resource_size_t align; 1776 int ret; 1777 1778 if (hbus->low_mmio_space) { 1779 align = 1ULL << (63 - __builtin_clzll(hbus->low_mmio_space)); 1780 ret = vmbus_allocate_mmio(&hbus->low_mmio_res, hbus->hdev, 0, 1781 (u64)(u32)0xffffffff, 1782 hbus->low_mmio_space, 1783 align, false); 1784 if (ret) { > 1785 pr_err("Need %llx of low MMIO space. " 1786 "Consider reconfiguring the VM.\n", 1787 hbus->low_mmio_space); 1788 return ret; 1789 } 1790 1791 hbus->low_mmio_res->flags |= IORESOURCE_WINDOW; 1792 hbus->low_mmio_res->flags &= ~IORESOURCE_BUSY; 1793 pci_add_resource(&hbus->resources_for_children, --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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