Hi Raag, kernel test robot noticed the following build warnings: [auto build test WARNING on 5bd262f4820f2d5645d8ff1f251ef8e96715ef84] url: https://github.com/intel-lab-lkp/linux/commits/Raag-Jadav/compiler-h-Introduce-helpers-for-identifying-array-and-pointer-types/20231120-201140 base: 5bd262f4820f2d5645d8ff1f251ef8e96715ef84 patch link: https://lore.kernel.org/r/20231120120837.3002-4-raag.jadav%40intel.com patch subject: [PATCH v1 3/6] ACPI: bus: update acpi_dev_hid_uid_match() to support multiple types config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20231120/202311202353.O38sik0Y-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231120/202311202353.O38sik0Y-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202311202353.O38sik0Y-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from include/linux/acpi.h:45, from drivers/iommu/amd/iommu.c:13: drivers/iommu/amd/iommu.c: In function 'get_acpihid_device_id': >> drivers/iommu/amd/iommu.c:103:63: warning: pointer/integer type mismatch in conditional expression 103 | p->uid[0] ? p->uid : NULL)) { | ^ include/acpi/acpi_bus.h:915:46: note: in definition of macro 'acpi_dev_hid_uid_match' 915 | (acpi_dev_hid_match(adev, hid2) && (!uid2 || acpi_dev_uid_match(adev, uid2))) | ^~~~ vim +103 drivers/iommu/amd/iommu.c 81cd07b9c92ad4 drivers/iommu/amd_iommu.c Joerg Roedel 2016-07-07 85 15898bbcb48fc8 arch/x86/kernel/amd_iommu.c Joerg Roedel 2009-11-24 86 /**************************************************************************** 15898bbcb48fc8 arch/x86/kernel/amd_iommu.c Joerg Roedel 2009-11-24 87 * 15898bbcb48fc8 arch/x86/kernel/amd_iommu.c Joerg Roedel 2009-11-24 88 * Helper functions 15898bbcb48fc8 arch/x86/kernel/amd_iommu.c Joerg Roedel 2009-11-24 89 * 15898bbcb48fc8 arch/x86/kernel/amd_iommu.c Joerg Roedel 2009-11-24 90 ****************************************************************************/ 15898bbcb48fc8 arch/x86/kernel/amd_iommu.c Joerg Roedel 2009-11-24 91 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 92 static inline int get_acpihid_device_id(struct device *dev, 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 93 struct acpihid_map_entry **entry) 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 94 { ae5e6c6439c3d0 drivers/iommu/amd_iommu.c Andy Shevchenko 2019-10-01 95 struct acpi_device *adev = ACPI_COMPANION(dev); 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 96 struct acpihid_map_entry *p; 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 97 ae5e6c6439c3d0 drivers/iommu/amd_iommu.c Andy Shevchenko 2019-10-01 98 if (!adev) ae5e6c6439c3d0 drivers/iommu/amd_iommu.c Andy Shevchenko 2019-10-01 99 return -ENODEV; ae5e6c6439c3d0 drivers/iommu/amd_iommu.c Andy Shevchenko 2019-10-01 100 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 101 list_for_each_entry(p, &acpihid_map, list) { ea90228c7b2ae6 drivers/iommu/amd_iommu.c Raul E Rangel 2020-05-11 102 if (acpi_dev_hid_uid_match(adev, p->hid, ea90228c7b2ae6 drivers/iommu/amd_iommu.c Raul E Rangel 2020-05-11 @103 p->uid[0] ? p->uid : NULL)) { 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 104 if (entry) 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 105 *entry = p; 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 106 return p->devid; 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 107 } 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 108 } 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 109 return -EINVAL; 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 110 } 2bf9a0a12749b2 drivers/iommu/amd_iommu.c Wan Zongshun 2016-04-01 111 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
