tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: b2b8512ca97108929f3aca5405875d91577b8c80 commit: c21b483526d766fd97d491f3951433f69fde3ac3 [3075/3075] ub:ubus: Add UBUS capability interfaces config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20251106/202511061247.kuPODIrY-lkp@i...) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251106/202511061247.kuPODIrY-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202511061247.kuPODIrY-lkp@intel.com/ All warnings (new ones prefixed by >>):

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drivers/ub/ubus/cap.c:12:6: warning: no previous prototype for function 'ub_set_cap_bitmap' [-Wmissing-prototypes] 12 | void ub_set_cap_bitmap(struct ub_entity *uent) | ^ drivers/ub/ubus/cap.c:12:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 12 | void ub_set_cap_bitmap(struct ub_entity *uent) | ^ | static drivers/ub/ubus/cap.c:47:5: warning: no previous prototype for function 'ub_find_capability' [-Wmissing-prototypes] 47 | u32 ub_find_capability(u32 cap) | ^ drivers/ub/ubus/cap.c:47:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 47 | u32 ub_find_capability(u32 cap) | ^ | static drivers/ub/ubus/cap.c:52:5: warning: no previous prototype for function 'ub_cap_read_byte' [-Wmissing-prototypes] 52 | int ub_cap_read_byte(struct ub_entity *uent, u32 cap, u32 off, u8 *val) | ^ drivers/ub/ubus/cap.c:52:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 52 | int ub_cap_read_byte(struct ub_entity *uent, u32 cap, u32 off, u8 *val) | ^ | static drivers/ub/ubus/cap.c:70:5: warning: no previous prototype for function 'ub_cap_read_word' [-Wmissing-prototypes] 70 | int ub_cap_read_word(struct ub_entity *uent, u32 cap, u32 off, u16 *val) | ^ drivers/ub/ubus/cap.c:70:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 70 | int ub_cap_read_word(struct ub_entity *uent, u32 cap, u32 off, u16 *val) | ^ | static drivers/ub/ubus/cap.c:88:5: warning: no previous prototype for function 'ub_cap_read_dword' [-Wmissing-prototypes] 88 | int ub_cap_read_dword(struct ub_entity *uent, u32 cap, u32 off, u32 *val) | ^ drivers/ub/ubus/cap.c:88:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 88 | int ub_cap_read_dword(struct ub_entity *uent, u32 cap, u32 off, u32 *val) | ^ | static drivers/ub/ubus/cap.c:106:5: warning: no previous prototype for function 'ub_cap_write_byte' [-Wmissing-prototypes] 106 | int ub_cap_write_byte(struct ub_entity *uent, u32 cap, u32 off, u8 val) | ^ drivers/ub/ubus/cap.c:106:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 106 | int ub_cap_write_byte(struct ub_entity *uent, u32 cap, u32 off, u8 val) | ^ | static drivers/ub/ubus/cap.c:117:5: warning: no previous prototype for function 'ub_cap_write_word' [-Wmissing-prototypes] 117 | int ub_cap_write_word(struct ub_entity *uent, u32 cap, u32 off, u16 val) | ^ drivers/ub/ubus/cap.c:117:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 117 | int ub_cap_write_word(struct ub_entity *uent, u32 cap, u32 off, u16 val) | ^ | static drivers/ub/ubus/cap.c:128:5: warning: no previous prototype for function 'ub_cap_write_dword' [-Wmissing-prototypes] 128 | int ub_cap_write_dword(struct ub_entity *uent, u32 cap, u32 off, u32 val) | ^ drivers/ub/ubus/cap.c:128:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 128 | int ub_cap_write_dword(struct ub_entity *uent, u32 cap, u32 off, u32 val) | ^ | static drivers/ub/ubus/cap.c:139:5: warning: no previous prototype for function 'ub_cap_clear_and_set_word' [-Wmissing-prototypes] 139 | int ub_cap_clear_and_set_word(struct ub_entity *dev, u32 cap, u32 off, | ^ drivers/ub/ubus/cap.c:139:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 139 | int ub_cap_clear_and_set_word(struct ub_entity *dev, u32 cap, u32 off, | ^ | static drivers/ub/ubus/cap.c:155:5: warning: no previous prototype for function 'ub_cap_clear_and_set_dword' [-Wmissing-prototypes] 155 | int ub_cap_clear_and_set_dword(struct ub_entity *dev, u32 cap, u32 off, | ^ drivers/ub/ubus/cap.c:155:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 155 | int ub_cap_clear_and_set_dword(struct ub_entity *dev, u32 cap, u32 off, | ^ | static drivers/ub/ubus/cap.c:224:6: warning: no previous prototype for function 'ub_init_capabilities' [-Wmissing-prototypes] 224 | void ub_init_capabilities(struct ub_entity *uent) | ^ drivers/ub/ubus/cap.c:224:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 224 | void ub_init_capabilities(struct ub_entity *uent) | ^ | static drivers/ub/ubus/cap.c:238:6: warning: no previous prototype for function 'ub_uninit_capabilities' [-Wmissing-prototypes] 238 | void ub_uninit_capabilities(struct ub_entity *uent) | ^ drivers/ub/ubus/cap.c:238:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 238 | void ub_uninit_capabilities(struct ub_entity *uent) | ^ | static drivers/ub/ubus/cap.c:171:19: warning: unused function 'ub_cap_set_word' [-Wunused-function] 171 | static inline int ub_cap_set_word(struct ub_entity *dev, u32 cap, u32 off, | ^~~~~~~~~~~~~~~ drivers/ub/ubus/cap.c:177:19: warning: unused function 'ub_cap_set_dword' [-Wunused-function] 177 | static inline int ub_cap_set_dword(struct ub_entity *dev, u32 cap, u32 off, | ^~~~~~~~~~~~~~~~ drivers/ub/ubus/cap.c:183:19: warning: unused function 'ub_cap_clear_word' [-Wunused-function] 183 | static inline int ub_cap_clear_word(struct ub_entity *dev, u32 cap, u32 off, | ^~~~~~~~~~~~~~~~~ drivers/ub/ubus/cap.c:189:19: warning: unused function 'ub_cap_clear_dword' [-Wunused-function] 189 | static inline int ub_cap_clear_dword(struct ub_entity *dev, u32 cap, u32 off, | ^~~~~~~~~~~~~~~~~~ 16 warnings generated.

vim +/ub_set_cap_bitmap +12 drivers/ub/ubus/cap.c 11

12 void ub_set_cap_bitmap(struct ub_entity *uent) 13 { 14 int ret; 15 u32 i; 16 17 for (i = 0; i < SZ_8; i++) { 18 ret = ub_cfg_read_dword(uent, UB_CFG1_CAP_BITMAP + (i << SZ_2), 19 &uent->cfg1_bitmap[i]); 20 if (ret) 21 ub_err(uent, "Read cfg1 cap bitmap failed, ret=%d\n", 22 ret); 23 } 24 25 if (is_p_device(uent)) 26 return; 27 28 for (i = 0; i < SZ_8; i++) { 29 ret = ub_cfg_read_dword(uent, UB_CFG0_CAP_BITMAP + (i << SZ_2), 30 &uent->cfg0_bitmap[i]); 31 if (ret) 32 ub_err(uent, "Read cfg0 cap bitmap failed, ret=%d\n", 33 ret); 34 } 35 } 36 37 /* Check whether the capbility register is implemented. */ 38 static bool ub_cap_reg_implemented(struct ub_entity *uent, u32 cap) 39 { 40 u32 i = (cap & 0xFF) / SZ_32; 41 u32 val = (cap >> SZ_8) ? uent->cfg1_bitmap[i] : uent->cfg0_bitmap[i]; 42 43 return val & BIT((cap & 0xFF) % SZ_32); 44 } 45 46 /* find the start address of capability */ 47 u32 ub_find_capability(u32 cap) 48 { 49 return (cap << BITS_PER_BYTE) << SZ_2; 50 } 51 52 int ub_cap_read_byte(struct ub_entity *uent, u32 cap, u32 off, u8 *val) 53 { 54 int ret; 55 56 *val = 0; 57 if (off >= SZ_1K) 58 return -EFAULT; 59 60 if (!ub_cap_reg_implemented(uent, cap)) 61 return -ENXIO; 62 63 ret = ub_cfg_read_byte(uent, ub_find_capability(cap) + off, val); 64 if (ret) 65 *val = 0; 66 67 return ret; 68 } 69 70 int ub_cap_read_word(struct ub_entity *uent, u32 cap, u32 off, u16 *val) 71 { 72 int ret; 73 74 *val = 0; 75 if (off & 1 || off >= SZ_1K) 76 return -EFAULT; 77 78 if (!ub_cap_reg_implemented(uent, cap)) 79 return -ENXIO; 80 81 ret = ub_cfg_read_word(uent, ub_find_capability(cap) + off, val); 82 if (ret) 83 *val = 0; 84 85 return ret; 86 } 87 88 int ub_cap_read_dword(struct ub_entity *uent, u32 cap, u32 off, u32 *val) 89 { 90 int ret; 91 92 *val = 0; 93 if (off & DW_CHECK || off >= SZ_1K) 94 return -EFAULT; 95 96 if (!ub_cap_reg_implemented(uent, cap)) 97 return -ENXIO; 98 99 ret = ub_cfg_read_dword(uent, ub_find_capability(cap) + off, val); 100 if (ret) 101 *val = 0; 102 103 return ret; 104 } 105 106 int ub_cap_write_byte(struct ub_entity *uent, u32 cap, u32 off, u8 val) 107 { 108 if (off >= SZ_1K) 109 return -EFAULT; 110 111 if (!ub_cap_reg_implemented(uent, cap)) 112 return -ENXIO; 113 114 return ub_cfg_write_byte(uent, ub_find_capability(cap) + off, val); 115 } 116 117 int ub_cap_write_word(struct ub_entity *uent, u32 cap, u32 off, u16 val) 118 { 119 if (off & 1 || off >= SZ_1K) 120 return -EFAULT; 121 122 if (!ub_cap_reg_implemented(uent, cap)) 123 return -ENXIO; 124 125 return ub_cfg_write_word(uent, ub_find_capability(cap) + off, val); 126 } 127 128 int ub_cap_write_dword(struct ub_entity *uent, u32 cap, u32 off, u32 val) 129 { 130 if (off & DW_CHECK || off >= SZ_1K) 131 return -EFAULT; 132 133 if (!ub_cap_reg_implemented(uent, cap)) 134 return -ENXIO; 135 136 return ub_cfg_write_dword(uent, ub_find_capability(cap) + off, val); 137 } 138 139 int ub_cap_clear_and_set_word(struct ub_entity *dev, u32 cap, u32 off, 140 u16 clear, u16 set) 141 { 142 u16 val; 143 int ret; 144 145 ret = ub_cap_read_word(dev, cap, off, &val); 146 if (!ret) { 147 val &= ~clear; 148 val |= set; 149 ret = ub_cap_write_word(dev, cap, off, val); 150 } 151 152 return ret; 153 } 154 155 int ub_cap_clear_and_set_dword(struct ub_entity *dev, u32 cap, u32 off, 156 u32 clear, u32 set) 157 { 158 u32 val; 159 int ret; 160 161 ret = ub_cap_read_dword(dev, cap, off, &val); 162 if (!ret) { 163 val &= ~clear; 164 val |= set; 165 ret = ub_cap_write_dword(dev, cap, off, val); 166 } 167 168 return ret; 169 } 170

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