Hi Vadim, I love your patch! Yet something to improve: [auto build test ERROR on platform-drivers-x86/for-next] [also build test ERROR on v4.15-rc4 next-20171220] [cannot apply to linus/master] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Vadim-Pasternak/drivers-platform-replace-module-x86-mlxcpld-hotplug-with-mellanox-mlxreg-hotplug/20171220-163359 base: git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git for-next config: sparc64-allyesconfig (attached as .config) compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=sparc64 Note: the linux-review/Vadim-Pasternak/drivers-platform-replace-module-x86-mlxcpld-hotplug-with-mellanox-mlxreg-hotplug/20171220-163359 HEAD 7e98e72a743e69069c34f3bbd3b9289740e30de0 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): drivers/platform/mellanox/mlxreg-hotplug.c: In function 'mlxreg_hotplug_attr_show': >> drivers/platform/mellanox/mlxreg-hotplug.c:224:17: error: implicit declaration of function 'inb' [-Werror=implicit-function-declaration] reg_val = !!!(inb(priv->plat->psu_reg_offset) & BIT(index)); ^~~ drivers/platform/mellanox/mlxreg-hotplug.c: In function 'mlxreg_hotplug_work_helper': >> drivers/platform/mellanox/mlxreg-hotplug.c:305:2: error: implicit declaration of function 'outb' [-Werror=implicit-function-declaration] outb(0, offset + MLXREG_HOTPLUG_MASK_OFF); ^~~~ cc1: some warnings being treated as errors vim +/inb +224 drivers/platform/mellanox/mlxreg-hotplug.c 86a4f473 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 210 ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 211 static ssize_t mlxreg_hotplug_attr_show(struct device *dev, 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 212 struct device_attribute *attr, 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 213 char *buf) 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 214 { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 215 struct platform_device *pdev = to_platform_device(dev); ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 216 struct mlxreg_hotplug_priv_data *priv = platform_get_drvdata(pdev); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 217 int index = to_sensor_dev_attr_2(attr)->index; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 218 int nr = to_sensor_dev_attr_2(attr)->nr; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 219 u8 reg_val = 0; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 220 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 221 switch (nr) { ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 222 case MLXREG_HOTPLUG_ATTR_TYPE_PSU: 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 223 /* Bit = 0 : PSU is present. */ 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 @224 reg_val = !!!(inb(priv->plat->psu_reg_offset) & BIT(index)); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 225 break; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 226 ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 227 case MLXREG_HOTPLUG_ATTR_TYPE_PWR: 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 228 /* Bit = 1 : power cable is attached. */ 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 229 reg_val = !!(inb(priv->plat->pwr_reg_offset) & BIT(index % 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 230 priv->plat->pwr_count)); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 231 break; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 232 ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 233 case MLXREG_HOTPLUG_ATTR_TYPE_FAN: 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 234 /* Bit = 0 : FAN is present. */ 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 235 reg_val = !!!(inb(priv->plat->fan_reg_offset) & BIT(index % 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 236 priv->plat->fan_count)); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 237 break; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 238 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 239 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 240 return sprintf(buf, "%u\n", reg_val); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 241 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 242 ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 243 #define PRIV_ATTR(i) priv->mlxreg_hotplug_attr[i] ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 244 #define PRIV_DEV_ATTR(i) priv->mlxreg_hotplug_dev_attr[i] ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 245 static int mlxreg_hotplug_attr_init(struct mlxreg_hotplug_priv_data *priv) 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 246 { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 247 int num_attrs = priv->plat->psu_count + priv->plat->pwr_count + 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 248 priv->plat->fan_count; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 249 int i; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 250 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 251 priv->group.attrs = devm_kzalloc(&priv->pdev->dev, num_attrs * 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 252 sizeof(struct attribute *), 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 253 GFP_KERNEL); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 254 if (!priv->group.attrs) 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 255 return -ENOMEM; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 256 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 257 for (i = 0; i < num_attrs; i++) { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 258 PRIV_ATTR(i) = &PRIV_DEV_ATTR(i).dev_attr.attr; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 259 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 260 if (i < priv->plat->psu_count) { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 261 PRIV_ATTR(i)->name = devm_kasprintf(&priv->pdev->dev, 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 262 GFP_KERNEL, "psu%u", i + 1); ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 263 PRIV_DEV_ATTR(i).nr = MLXREG_HOTPLUG_ATTR_TYPE_PSU; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 264 } else if (i < priv->plat->psu_count + priv->plat->pwr_count) { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 265 PRIV_ATTR(i)->name = devm_kasprintf(&priv->pdev->dev, 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 266 GFP_KERNEL, "pwr%u", i % 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 267 priv->plat->pwr_count + 1); ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 268 PRIV_DEV_ATTR(i).nr = MLXREG_HOTPLUG_ATTR_TYPE_PWR; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 269 } else { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 270 PRIV_ATTR(i)->name = devm_kasprintf(&priv->pdev->dev, 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 271 GFP_KERNEL, "fan%u", i % 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 272 priv->plat->fan_count + 1); ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 273 PRIV_DEV_ATTR(i).nr = MLXREG_HOTPLUG_ATTR_TYPE_FAN; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 274 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 275 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 276 if (!PRIV_ATTR(i)->name) { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 277 dev_err(&priv->pdev->dev, "Memory allocation failed for sysfs attribute %d.\n", 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 278 i + 1); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 279 return -ENOMEM; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 280 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 281 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 282 PRIV_DEV_ATTR(i).dev_attr.attr.name = PRIV_ATTR(i)->name; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 283 PRIV_DEV_ATTR(i).dev_attr.attr.mode = S_IRUGO; ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 284 PRIV_DEV_ATTR(i).dev_attr.show = mlxreg_hotplug_attr_show; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 285 PRIV_DEV_ATTR(i).index = i; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 286 sysfs_attr_init(&PRIV_DEV_ATTR(i).dev_attr.attr); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 287 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 288 ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 289 priv->group.attrs = priv->mlxreg_hotplug_attr; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 290 priv->groups[0] = &priv->group; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 291 priv->groups[1] = NULL; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 292 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 293 return 0; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 294 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 295 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 296 static inline void ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 297 mlxreg_hotplug_work_helper(struct device *dev, ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 298 struct mlxreg_hotplug_device *item, u8 is_inverse, 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 299 u16 offset, u8 mask, u8 *cache) 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 300 { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 301 u8 val, asserted; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 302 int bit; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 303 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 304 /* Mask event. */ ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 @305 outb(0, offset + MLXREG_HOTPLUG_MASK_OFF); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 306 /* Read status. */ 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 307 val = inb(offset) & mask; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 308 asserted = *cache ^ val; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 309 *cache = val; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 310 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 311 /* 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 312 * Validate if item related to received signal type is valid. 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 313 * It should never happen, excepted the situation when some 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 314 * piece of hardware is broken. In such situation just produce 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 315 * error message and return. Caller must continue to handle the 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 316 * signals from other devices if any. 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 317 */ 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 318 if (unlikely(!item)) { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 319 dev_err(dev, "False signal is received: register at offset 0x%02x, mask 0x%02x.\n", 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 320 offset, mask); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 321 return; 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 322 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 323 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 324 for_each_set_bit(bit, (unsigned long *)&asserted, 8) { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 325 if (val & BIT(bit)) { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 326 if (is_inverse) 86a4f473 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 327 mlxreg_hotplug_dev_disable(item + bit); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 328 else 86a4f473 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 329 mlxreg_hotplug_dev_enable(item + bit); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 330 } else { 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 331 if (is_inverse) 86a4f473 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 332 mlxreg_hotplug_dev_enable(item + bit); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 333 else 86a4f473 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 334 mlxreg_hotplug_dev_disable(item + bit); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 335 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 336 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 337 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 338 /* Acknowledge event. */ ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 339 outb(0, offset + MLXREG_HOTPLUG_EVENT_OFF); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 340 /* Unmask event. */ ebea1439 drivers/platform/mellanox/mlxreg-hotplug.c Vadim Pasternak 2017-12-18 341 outb(mask, offset + MLXREG_HOTPLUG_MASK_OFF); 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 342 } 30488704 drivers/platform/x86/mlxcpld-hotplug.c Vadim Pasternak 2016-10-20 343 :::::: The code at line 224 was first introduced by commit :::::: 304887041d953b6692c0d4a9f8fafb252d32e9a0 platform/x86: Introduce support for Mellanox hotplug driver :::::: TO: Vadim Pasternak <vadimp@xxxxxxxxxxxx> :::::: CC: Darren Hart <dvhart@xxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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