Messages in this thread | | | Date | Tue, 3 May 2022 16:48:32 +0800 | From | kernel test robot <> | Subject | [asahilinux:bits/110-smc 11/14] drivers/power/reset/macsmc-reboot.c:142:37: warning: declaration of 'struct power_off_data' will not be visible outside of this function |
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tree: https://github.com/AsahiLinux/linux bits/110-smc head: dc3db43287ff1d44b447fff8ed6386b28b339f1c commit: c65d40d51ad43c1cb61a2e8658005340a622b826 [11/14] power: reset: macsmc-reboot: Add driver for rebooting via Apple SMC config: arm64-randconfig-r034-20220501 (https://download.01.org/0day-ci/archive/20220503/202205031650.5NKbmyGx-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 363b3a645a1e30011cc8da624f13dac5fd915628) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/AsahiLinux/linux/commit/c65d40d51ad43c1cb61a2e8658005340a622b826 git remote add asahilinux https://github.com/AsahiLinux/linux git fetch --no-tags asahilinux bits/110-smc git checkout c65d40d51ad43c1cb61a2e8658005340a622b826 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/input/misc/ drivers/power/reset/
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 >>):
drivers/power/reset/macsmc-reboot.c:54:25: error: field has incomplete type 'struct sys_off_handler' struct sys_off_handler sys_off; ^ drivers/power/reset/macsmc-reboot.c:54:9: note: forward declaration of 'struct sys_off_handler' struct sys_off_handler sys_off; ^ >> drivers/power/reset/macsmc-reboot.c:142:37: warning: declaration of 'struct power_off_data' will not be visible outside of this function [-Wvisibility] static void macsmc_power_off(struct power_off_data *data) ^ drivers/power/reset/macsmc-reboot.c:144:37: error: incomplete definition of type 'struct power_off_data' struct macsmc_reboot *reboot = data->cb_data; ~~~~^ drivers/power/reset/macsmc-reboot.c:142:37: note: forward declaration of 'struct power_off_data' static void macsmc_power_off(struct power_off_data *data) ^ >> drivers/power/reset/macsmc-reboot.c:156:35: warning: declaration of 'struct restart_data' will not be visible outside of this function [-Wvisibility] static void macsmc_restart(struct restart_data *data) ^ drivers/power/reset/macsmc-reboot.c:158:37: error: incomplete definition of type 'struct restart_data' struct macsmc_reboot *reboot = data->cb_data; ~~~~^ drivers/power/reset/macsmc-reboot.c:156:35: note: forward declaration of 'struct restart_data' static void macsmc_restart(struct restart_data *data) ^ >> drivers/power/reset/macsmc-reboot.c:170:42: warning: declaration of 'struct reboot_prep_data' will not be visible outside of this function [-Wvisibility] static void macsmc_reboot_prepare(struct reboot_prep_data *data) ^ drivers/power/reset/macsmc-reboot.c:172:37: error: incomplete definition of type 'struct reboot_prep_data' struct macsmc_reboot *reboot = data->cb_data; ~~~~^ drivers/power/reset/macsmc-reboot.c:170:42: note: forward declaration of 'struct reboot_prep_data' static void macsmc_reboot_prepare(struct reboot_prep_data *data) ^ drivers/power/reset/macsmc-reboot.c:176:14: error: incomplete definition of type 'struct reboot_prep_data' switch (data->mode) { ~~~~^ drivers/power/reset/macsmc-reboot.c:170:42: note: forward declaration of 'struct reboot_prep_data' static void macsmc_reboot_prepare(struct reboot_prep_data *data) ^ drivers/power/reset/macsmc-reboot.c:289:37: error: use of undeclared identifier 'RESTART_PRIO_HIGH' reboot->sys_off.restart_priority = RESTART_PRIO_HIGH; ^ drivers/power/reset/macsmc-reboot.c:292:8: error: call to undeclared function 'devm_register_sys_off_handler'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] ret = devm_register_sys_off_handler(&pdev->dev, &reboot->sys_off); ^ 3 warnings and 7 errors generated.
vim +142 drivers/power/reset/macsmc-reboot.c
50 51 struct macsmc_reboot { 52 struct device *dev; 53 struct apple_smc *smc; > 54 struct sys_off_handler sys_off; 55 56 union { 57 struct macsmc_reboot_nvmem nvm; 58 struct nvmem_cell *nvm_cells[ARRAY_SIZE(nvmem_names)]; 59 }; 60 }; 61 62 /* Helpers to read/write a u8 given a struct nvmem_cell */ 63 static int nvmem_cell_get_u8(struct nvmem_cell *cell) 64 { 65 size_t len; 66 u8 val; 67 void *ret = nvmem_cell_read(cell, &len); 68 69 if (IS_ERR(ret)) 70 return PTR_ERR(ret); 71 72 if (len < 1) { 73 kfree(ret); 74 return -EINVAL; 75 } 76 77 val = *(u8 *)ret; 78 kfree(ret); 79 return val; 80 } 81 82 static int nvmem_cell_set_u8(struct nvmem_cell *cell, u8 val) 83 { 84 return nvmem_cell_write(cell, &val, sizeof(val)); 85 } 86 87 static ssize_t macsmc_ac_power_mode_store(struct device *dev, struct device_attribute *attr, 88 const char *buf, size_t n) 89 { 90 struct macsmc_reboot *reboot = dev_get_drvdata(dev); 91 int mode; 92 int ret; 93 94 mode = sysfs_match_string(ac_power_modes, buf); 95 if (mode < 0) 96 return mode; 97 98 ret = nvmem_cell_set_u8(reboot->nvm.pm_setting, ac_power_mode_map[mode]); 99 if (ret < 0) 100 return ret; 101 102 return n; 103 } 104 105 static ssize_t macsmc_ac_power_mode_show(struct device *dev, 106 struct device_attribute *attr, char *buf) 107 { 108 struct macsmc_reboot *reboot = dev_get_drvdata(dev); 109 int len = 0; 110 int i; 111 int mode = nvmem_cell_get_u8(reboot->nvm.pm_setting); 112 113 if (mode < 0) 114 return mode; 115 116 for (i = 0; i < ARRAY_SIZE(ac_power_mode_map); i++) 117 if (mode == ac_power_mode_map[i]) 118 len += scnprintf(buf+len, PAGE_SIZE-len, 119 "[%s] ", ac_power_modes[i]); 120 else 121 len += scnprintf(buf+len, PAGE_SIZE-len, 122 "%s ", ac_power_modes[i]); 123 buf[len-1] = '\n'; 124 return len; 125 } 126 static DEVICE_ATTR(ac_power_mode, 0644, macsmc_ac_power_mode_show, 127 macsmc_ac_power_mode_store); 128 129 /* 130 * SMC 'MBSE' key actions: 131 * 132 * 'offw' - shutdown warning 133 * 'slpw' - sleep warning 134 * 'rest' - restart warning 135 * 'off1' - shutdown (needs PMU bit set to stay on) 136 * 'susp' - suspend 137 * 'phra' - restart ("PE Halt Restart Action"?) 138 * 'panb' - panic beginning 139 * 'pane' - panic end 140 */ 141 > 142 static void macsmc_power_off(struct power_off_data *data) 143 { 144 struct macsmc_reboot *reboot = data->cb_data; 145 146 dev_info(reboot->dev, "Issuing power off (off1)\n"); 147 148 if (apple_smc_write_u32_atomic(reboot->smc, SMC_KEY(MBSE), SMC_KEY(off1)) < 0) { 149 dev_err(reboot->dev, "Failed to issue MBSE = off1 (power_off)\n"); 150 } else { 151 mdelay(100); 152 WARN_ON(1); 153 } 154 } 155 > 156 static void macsmc_restart(struct restart_data *data) 157 { 158 struct macsmc_reboot *reboot = data->cb_data; 159 160 dev_info(reboot->dev, "Issuing restart (phra)\n"); 161 162 if (apple_smc_write_u32_atomic(reboot->smc, SMC_KEY(MBSE), SMC_KEY(phra)) < 0) { 163 dev_err(reboot->dev, "Failed to issue MBSE = phra (restart)\n"); 164 } else { 165 mdelay(100); 166 WARN_ON(1); 167 } 168 } 169 > 170 static void macsmc_reboot_prepare(struct reboot_prep_data *data) 171 { 172 struct macsmc_reboot *reboot = data->cb_data; 173 u32 val; 174 u8 shutdown_flag; 175 176 switch (data->mode) { 177 case SYS_RESTART: 178 val = SMC_KEY(rest); 179 shutdown_flag = 0; 180 break; 181 case SYS_POWER_OFF: 182 val = SMC_KEY(offw); 183 shutdown_flag = 1; 184 break; 185 default: 186 return; 187 } 188 189 dev_info(reboot->dev, "Preparing for reboot (%p4ch)\n", &val); 190 191 /* On the Mac Mini, this will turn off the LED for power off */ 192 if (apple_smc_write_u32(reboot->smc, SMC_KEY(MBSE), val) < 0) 193 dev_err(reboot->dev, "Failed to issue MBSE = %p4ch (reboot_prepare)\n", &val); 194 195 /* Set the boot_stage to 0, which means we're doing a clean shutdown/reboot. */ 196 if (reboot->nvm.boot_stage && 197 nvmem_cell_set_u8(reboot->nvm.boot_stage, BOOT_STAGE_SHUTDOWN) < 0) 198 dev_err(reboot->dev, "Failed to write boot_stage\n"); 199 200 /* 201 * Set the PMU flag to actually reboot into the off state. 202 * Without this, the device will just reboot. We make it optional in case it is no longer 203 * necessary on newer hardware. 204 */ 205 if (reboot->nvm.shutdown_flag && 206 nvmem_cell_set_u8(reboot->nvm.shutdown_flag, shutdown_flag) < 0) 207 dev_err(reboot->dev, "Failed to write shutdown_flag\n"); 208
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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