Messages in this thread | | | Date | Fri, 18 Mar 2022 04:06:44 +0800 | From | kernel test robot <> | Subject | [luxis1999-iommufd:iommufd-v5.17-rc6-wip 41/41] drivers/iommu/iommufd/device.c:136:77: warning: cast from pointer to integer of different size |
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tree: https://github.com/luxis1999/iommufd iommufd-v5.17-rc6-wip head: d883a7e5a78fb9f4d6fc85a0845f95c6613aaade commit: d883a7e5a78fb9f4d6fc85a0845f95c6613aaade [41/41] Check the below call trace config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220318/202203180421.pQJyHnCm-lkp@intel.com/config) compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0 reproduce (this is a W=1 build): # https://github.com/luxis1999/iommufd/commit/d883a7e5a78fb9f4d6fc85a0845f95c6613aaade git remote add luxis1999-iommufd https://github.com/luxis1999/iommufd git fetch --no-tags luxis1999-iommufd iommufd-v5.17-rc6-wip git checkout d883a7e5a78fb9f4d6fc85a0845f95c6613aaade # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/iommu/iommufd/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/kernel.h:29, from arch/x86/include/asm/percpu.h:27, from arch/x86/include/asm/current.h:6, 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/iommufd.h:12, from drivers/iommu/iommufd/device.c:4: drivers/iommu/iommufd/device.c: In function 'iommufd_device_setup_msi': >> drivers/iommu/iommufd/device.c:136:77: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 136 | printk("%s, dev: %s, hwpt->domain: %llx\n", __func__, dev_name(idev->dev), (unsigned long long)hwpt->domain); | ^ include/linux/printk.h:418:19: note: in definition of macro 'printk_index_wrap' 418 | _p_func(_fmt, ##__VA_ARGS__); \ | ^~~~~~~~~~~ drivers/iommu/iommufd/device.c:136:2: note: in expansion of macro 'printk' 136 | printk("%s, dev: %s, hwpt->domain: %llx\n", __func__, dev_name(idev->dev), (unsigned long long)hwpt->domain); | ^~~~~~
vim +136 drivers/iommu/iommufd/device.c
130 131 static int iommufd_device_setup_msi(struct iommufd_device *idev, 132 struct iommufd_hw_pagetable *hwpt, 133 phys_addr_t sw_msi_start, 134 unsigned int flags) 135 { > 136 printk("%s, dev: %s, hwpt->domain: %llx\n", __func__, dev_name(idev->dev), (unsigned long long)hwpt->domain); 137 /* 138 * IOMMU_CAP_INTR_REMAP means that the platform is isolating MSI, 139 * nothing further to do. 140 */ 141 if (iommu_capable(idev->dev->bus, IOMMU_CAP_INTR_REMAP)) 142 return 0; 143 144 printk("%s %d\n", __func__, __LINE__); 145 /* 146 * On ARM systems that set the global IRQ_DOMAIN_FLAG_MSI_REMAP every 147 * allocated iommu_domain will block interrupts by default and this 148 * special flow is needed to turn them back on. 149 */ 150 if (irq_domain_check_msi_remap()) { 151 if (WARN_ON(!sw_msi_start)) 152 return -EPERM; 153 return iommu_get_msi_cookie(hwpt->domain, sw_msi_start); 154 } 155 156 /* 157 * Otherwise the platform has a MSI window that is not isolated. For 158 * historical compat with VFIO allow a module parameter to ignore the 159 * insecurity. 160 */ 161 if (!(flags & IOMMUFD_ATTACH_FLAGS_ALLOW_UNSAFE_INTERRUPT)) 162 return -EPERM; 163 return 0; 164 } 165
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