Hi jaap, Thank you for the patch! Yet something to improve: [auto build test ERROR on hwmon/hwmon-next] [also build test ERROR on v5.8-rc5 next-20200714] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/jaap-aarts/hwmon-add-fan-pwm-dri... base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): In file included from arch/m68k/include/asm/io_mm.h:25, from arch/m68k/include/asm/io.h:8, from include/linux/io.h:13, from include/linux/irq.h:20, from include/asm-generic/hardirq.h:13, from ./arch/m68k/include/generated/asm/hardirq.h:1, from include/linux/hardirq.h:10, from include/linux/interrupt.h:11, from include/linux/usb.h:16, from drivers/hwmon/asetek_gen6.c:23: arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsb': arch/m68k/include/asm/raw_io.h:83:7: warning: variable '__w' set but not used [-Wunused-but-set-variable] 83 | ({u8 __w, __v = (b); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:430:3: note: in expansion of macro 'rom_out_8' 430 | rom_out_8(port, *buf++); | ^~~~~~~~~ arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw': arch/m68k/include/asm/raw_io.h:86:8: warning: variable '__w' set but not used [-Wunused-but-set-variable] 86 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:448:3: note: in expansion of macro 'rom_out_be16' 448 | rom_out_be16(port, *buf++); | ^~~~~~~~~~~~ arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw_swapw': arch/m68k/include/asm/raw_io.h:90:8: warning: variable '__w' set but not used [-Wunused-but-set-variable] 90 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:466:3: note: in expansion of macro 'rom_out_le16' 466 | rom_out_le16(port, *buf++); | ^~~~~~~~~~~~ drivers/hwmon/asetek_gen6.c: At top level: drivers/hwmon/asetek_gen6.c:174:5: warning: no previous prototype for 'set_fan_rpm_curve' [-Wmissing-prototypes] 174 | int set_fan_rpm_curve(struct driver *cdev, struct hwmon_fan_data *fan_data, | ^~~~~~~~~~~~~~~~~ In file included from include/linux/device.h:15, from include/linux/usb/ch9.h:36, from include/linux/usb.h:6, from drivers/hwmon/asetek_gen6.c:23: drivers/hwmon/asetek_gen6.c: In function 'set_fan_rpm_curve': 212 | dev_info("[*] Failled setting fan curve %d,%d,%d/%d\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | char * include/linux/dev_printk.h:110:12: note: in definition of macro 'dev_info' 110 | _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~ include/linux/dev_printk.h:48:37: note: expected 'const struct device *' but argument is of type 'char *' 48 | void _dev_info(const struct device *dev, const char *fmt, ...); | ~~~~~~~~~~~~~~~~~~~~~^~~ 213 | recv_buf[0], recv_buf[1], recv_buf[2], recv_buf[3]); | ~~~~~~~~^~~ | | | char include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt' 19 | #define dev_fmt(fmt) fmt | ^~~ drivers/hwmon/asetek_gen6.c:212:3: note: in expansion of macro 'dev_info' 212 | dev_info("[*] Failled setting fan curve %d,%d,%d/%d\n", | ^~~~~~~~ include/linux/dev_printk.h:48:54: note: expected 'const char *' but argument is of type 'char' 48 | void _dev_info(const struct device *dev, const char *fmt, ...); | ~~~~~~~~~~~~^~~ drivers/hwmon/asetek_gen6.c: At top level: drivers/hwmon/asetek_gen6.c:217:5: warning: no previous prototype for 'set_fan_target_rpm' [-Wmissing-prototypes] 217 | int set_fan_target_rpm(struct driver *cdev, struct hwmon_fan_data *fan_data, | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/device.h:15, from include/linux/usb/ch9.h:36, from include/linux/usb.h:6, from drivers/hwmon/asetek_gen6.c:23: drivers/hwmon/asetek_gen6.c: In function 'set_fan_target_rpm': drivers/hwmon/asetek_gen6.c:246:12: error: passing argument 1 of '_dev_info' from incompatible pointer type [-Werror=incompatible-pointer-types] 246 | dev_info("[*] Failled setting fan rpm %d,%d,%d/%d\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | char * include/linux/dev_printk.h:110:12: note: in definition of macro 'dev_info' 110 | _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~ include/linux/dev_printk.h:48:37: note: expected 'const struct device *' but argument is of type 'char *' 48 | void _dev_info(const struct device *dev, const char *fmt, ...); | ~~~~~~~~~~~~~~~~~~~~~^~~ drivers/hwmon/asetek_gen6.c:247:13: warning: passing argument 2 of '_dev_info' makes pointer from integer without a cast [-Wint-conversion] 247 | recv_buf[0], recv_buf[1], recv_buf[2], recv_buf[3]); | ~~~~~~~~^~~ | | | char include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt' 19 | #define dev_fmt(fmt) fmt | ^~~ drivers/hwmon/asetek_gen6.c:246:3: note: in expansion of macro 'dev_info' 246 | dev_info("[*] Failled setting fan rpm %d,%d,%d/%d\n", | ^~~~~~~~ include/linux/dev_printk.h:48:54: note: expected 'const char *' but argument is of type 'char' 48 | void _dev_info(const struct device *dev, const char *fmt, ...); | ~~~~~~~~~~~~^~~ drivers/hwmon/asetek_gen6.c: At top level: drivers/hwmon/asetek_gen6.c:251:6: warning: no previous prototype for 'get_fan_target_rpm' [-Wmissing-prototypes] 251 | void get_fan_target_rpm(struct hwmon_fan_data *fan_data, long *val) | ^~~~~~~~~~~~~~~~~~ drivers/hwmon/asetek_gen6.c:256:5: warning: no previous prototype for 'get_fan_current_rpm' [-Wmissing-prototypes] 256 | int get_fan_current_rpm(struct driver *cdev, struct hwmon_fan_data *fan_data, | ^~~~~~~~~~~~~~~~~~~ In file included from include/linux/device.h:15, from include/linux/usb/ch9.h:36, from include/linux/usb.h:6, from drivers/hwmon/asetek_gen6.c:23: drivers/hwmon/asetek_gen6.c: In function 'get_fan_current_rpm': drivers/hwmon/asetek_gen6.c:280:12: error: passing argument 1 of '_dev_info' from incompatible pointer type [-Werror=incompatible-pointer-types] 280 | dev_info("[*] Failled retrieving fan rmp %d,%d,%d/%d\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | char * include/linux/dev_printk.h:110:12: note: in definition of macro 'dev_info' 110 | _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~ include/linux/dev_printk.h:48:37: note: expected 'const struct device *' but argument is of type 'char *' 48 | void _dev_info(const struct device *dev, const char *fmt, ...); | ~~~~~~~~~~~~~~~~~~~~~^~~ drivers/hwmon/asetek_gen6.c:281:13: warning: passing argument 2 of '_dev_info' makes pointer from integer without a cast [-Wint-conversion] 281 | recv_buf[0], recv_buf[1], recv_buf[2], recv_buf[3]); | ~~~~~~~~^~~ | | | char include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt' 19 | #define dev_fmt(fmt) fmt | ^~~ drivers/hwmon/asetek_gen6.c:280:3: note: in expansion of macro 'dev_info' 280 | dev_info("[*] Failled retrieving fan rmp %d,%d,%d/%d\n", | ^~~~~~~~ include/linux/dev_printk.h:48:54: note: expected 'const char *' but argument is of type 'char' 48 | void _dev_info(const struct device *dev, const char *fmt, ...); | ~~~~~~~~~~~~^~~ drivers/hwmon/asetek_gen6.c: At top level: drivers/hwmon/asetek_gen6.c:287:5: warning: no previous prototype for 'set_fan_target_pwm' [-Wmissing-prototypes] 287 | int set_fan_target_pwm(struct driver *cdev, struct hwmon_fan_data *fan_data, | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/device.h:15, from include/linux/usb/ch9.h:36, from include/linux/usb.h:6, from drivers/hwmon/asetek_gen6.c:23: drivers/hwmon/asetek_gen6.c: In function 'set_fan_target_pwm': drivers/hwmon/asetek_gen6.c:315:12: error: passing argument 1 of '_dev_info' from incompatible pointer type [-Werror=incompatible-pointer-types] 315 | dev_info("[*] Failled setting fan pwm %d,%d,%d/%d\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | char * include/linux/dev_printk.h:110:12: note: in definition of macro 'dev_info' 110 | _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~ include/linux/dev_printk.h:48:37: note: expected 'const struct device *' but argument is of type 'char *' 48 | void _dev_info(const struct device *dev, const char *fmt, ...); | ~~~~~~~~~~~~~~~~~~~~~^~~ drivers/hwmon/asetek_gen6.c:316:13: warning: passing argument 2 of '_dev_info' makes pointer from integer without a cast [-Wint-conversion] 316 | recv_buf[0], recv_buf[1], recv_buf[2], recv_buf[3]); | ~~~~~~~~^~~ | | | unsigned char include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt' 19 | #define dev_fmt(fmt) fmt | ^~~ drivers/hwmon/asetek_gen6.c:315:3: note: in expansion of macro 'dev_info' 315 | dev_info("[*] Failled setting fan pwm %d,%d,%d/%d\n", | ^~~~~~~~ include/linux/dev_printk.h:48:54: note: expected 'const char *' but argument is of type 'unsigned char' 48 | void _dev_info(const struct device *dev, const char *fmt, ...); | ~~~~~~~~~~~~^~~ drivers/hwmon/asetek_gen6.c: At top level: drivers/hwmon/asetek_gen6.c:320:9: warning: no previous prototype for 'is_visible_func' [-Wmissing-prototypes] 320 | umode_t is_visible_func(const void *d, enum hwmon_sensor_types type, u32 attr, | ^~~~~~~~~~~~~~~ drivers/hwmon/asetek_gen6.c:475:5: warning: no previous prototype for 'read_func' [-Wmissing-prototypes] 475 | int read_func(struct device *dev, enum hwmon_sensor_types type, u32 attr, | ^~~~~~~~~ drivers/hwmon/asetek_gen6.c:556:6: warning: no previous prototype for 'does_fan_exist' [-Wmissing-prototypes] 556 | bool does_fan_exist(struct driver *cdev, int channel) | ^~~~~~~~~~~~~~ drivers/hwmon/asetek_gen6.c: In function 'does_fan_exist': drivers/hwmon/asetek_gen6.c:569:16: warning: overflow in conversion from 'int' to 'char' changes value from '600' to '88' [-Woverflow] 569 | send_buf[3] = 600; | ^~~ drivers/hwmon/asetek_gen6.c: At top level: drivers/hwmon/asetek_gen6.c:584:5: warning: no previous prototype for 'get_fan_count' [-Wmissing-prototypes] 584 | int get_fan_count(struct driver *dev) | ^~~~~~~~~~~~~ drivers/hwmon/asetek_gen6.c:593:6: warning: no previous prototype for 'hwmon_init' [-Wmissing-prototypes] 593 | void hwmon_init(struct driver *dev) | ^~~~~~~~~~ drivers/hwmon/asetek_gen6.c: In function 'hwmon_init': 650 | dev_info("[*] Setup hwmon\n"); | ^ In file included from include/linux/device.h:15, from include/linux/usb/ch9.h:36, from include/linux/usb.h:6, from drivers/hwmon/asetek_gen6.c:23: include/linux/dev_printk.h:109: note: macro "dev_info" defined here 109 | #define dev_info(dev, fmt, ...) \ | 650 | dev_info("[*] Setup hwmon\n"); | ^~~~~~~~ | _dev_info drivers/hwmon/asetek_gen6.c:650:2: note: each undeclared identifier is reported only once for each function it appears in drivers/hwmon/asetek_gen6.c:596:17: warning: variable 'hwmon_dev' set but not used [-Wunused-but-set-variable] 596 | struct device *hwmon_dev; | ^~~~~~~~~ drivers/hwmon/asetek_gen6.c: At top level: drivers/hwmon/asetek_gen6.c:653:6: warning: no previous prototype for 'hwmon_deinit' [-Wmissing-prototypes] 653 | void hwmon_deinit(struct driver *dev) | ^~~~~~~~~~~~ drivers/hwmon/asetek_gen6.c: In function 'hwmon_deinit': drivers/hwmon/asetek_gen6.c:656:35: error: macro "dev_info" requires 3 arguments, but only 1 given 656 | dev_info("[*] HWMON DISCONNECT\n"); | ^ In file included from include/linux/device.h:15, from include/linux/usb/ch9.h:36, from include/linux/usb.h:6, from drivers/hwmon/asetek_gen6.c:23: include/linux/dev_printk.h:109: note: macro "dev_info" defined here 109 | #define dev_info(dev, fmt, ...) \ | drivers/hwmon/asetek_gen6.c:656:2: error: 'dev_info' undeclared (first use in this function); did you mean '_dev_info'? 656 | dev_info("[*] HWMON DISCONNECT\n"); | ^~~~~~~~ | _dev_info drivers/hwmon/asetek_gen6.c: At top level: drivers/hwmon/asetek_gen6.c:670:5: warning: no previous prototype for 'init_device' [-Wmissing-prototypes] 670 | int init_device(struct usb_device *udev) | ^~~~~~~~~~~ drivers/hwmon/asetek_gen6.c: In function 'init_device': drivers/hwmon/asetek_gen6.c:678:3: warning: suggest braces around empty body in an 'if' statement [-Wempty-body] 678 | ; | ^ drivers/hwmon/asetek_gen6.c: At top level: drivers/hwmon/asetek_gen6.c:688:5: warning: no previous prototype for 'deinit_device' [-Wmissing-prototypes] 688 | int deinit_device(struct usb_device *udev) | ^~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/_dev_info +212 drivers/hwmon/asetek_gen6.c 24 #include <linux/slab.h> 25 #include <linux/mutex.h> 26 #include <linux/errno.h> 27 #include <linux/hwmon.h> 28 #include <linux/hwmon-sysfs.h> 29 30 struct driver { 31 struct usb_device *udev; 32 33 char *bulk_out_buffer; 34 char *bulk_in_buffer; 35 size_t bulk_out_size; 36 size_t bulk_in_size; 37 char bulk_in_endpointAddr; 38 char bulk_out_endpointAddr; 39 40 struct usb_interface *interface; /* the interface for this device */ 41 struct mutex io_mutex; /* synchronize I/O with disconnect */ 42 struct semaphore 43 limit_sem; /* limiting the number of writes in progress */ 44 45 struct kref kref; 46 }; 47 48 struct curve_point { 49 uint8_t temp; 50 uint8_t pwm; 51 }; 52 53 struct hwmon_fan_data { 54 char fan_channel; 55 long fan_target; 56 unsigned char fan_pwm_target; 57 long mode; 58 struct curve_point curve[7]; 59 }; 60 61 struct hwmon_data { 62 struct driver *dev; 63 int channel_count; 64 void **channel_data; 65 }; 66 67 struct curve_point quiet_curve[] = { 68 { 69 .temp = 0x1F, 70 .pwm = 0x15, 71 }, 72 { 73 .temp = 0x21, 74 .pwm = 0x1E, 75 }, 76 { 77 .temp = 0x24, 78 .pwm = 0x25, 79 }, 80 { 81 .temp = 0x27, 82 .pwm = 0x2D, 83 }, 84 { 85 .temp = 0x29, 86 .pwm = 0x38, 87 }, 88 { 89 .temp = 0x2C, 90 .pwm = 0x4A, 91 }, 92 { 93 .temp = 0x2F, 94 .pwm = 0x64, 95 }, 96 }; 97 98 struct curve_point balanced_curve[] = { 99 { 100 .temp = 0x1C, 101 .pwm = 0x15, 102 }, 103 { 104 .temp = 0x1E, 105 .pwm = 0x1B, 106 }, 107 { 108 .temp = 0x20, 109 .pwm = 0x23, 110 }, 111 { 112 .temp = 0x22, 113 .pwm = 0x28, 114 }, 115 { 116 .temp = 0x24, 117 .pwm = 0x32, 118 }, 119 { 120 .temp = 0x27, 121 .pwm = 0x48, 122 }, 123 { 124 .temp = 0x29, 125 .pwm = 0x64, 126 }, 127 }; 128 129 struct curve_point extreme_curve[] = { 130 { 131 .temp = 0x19, 132 .pwm = 0x28, 133 }, 134 { 135 .temp = 0x1B, 136 .pwm = 0x2E, 137 }, 138 { 139 .temp = 0x1D, 140 .pwm = 0x37, 141 }, 142 { 143 .temp = 0x1E, 144 .pwm = 0x41, 145 }, 146 { 147 .temp = 0x1F, 148 .pwm = 0x4C, 149 }, 150 { 151 .temp = 0x20, 152 .pwm = 0x56, 153 }, 154 { 155 .temp = 0x21, 156 .pwm = 0x64, 157 }, 158 }; 159 160 #define default_curve quiet_curve 161 162 static const char SUCCESS[2] = { 0x12, 0x34 }; 163 164 #define SUCCES_LENGTH 3 165 166 static bool check_succes(char command, char ret[SUCCES_LENGTH]) 167 { 168 char success[SUCCES_LENGTH] = { command }; 169 170 strncpy(&success[1], SUCCESS, SUCCES_LENGTH - 1); 171 return strncmp(ret, success, SUCCES_LENGTH - 1) == 0; 172 } 173 175 struct curve_point point[7]) 176 { 177 int retval; 178 int wrote; 179 int sndpipe = usb_sndbulkpipe(cdev->udev, cdev->bulk_out_endpointAddr); 180 int rcvpipe = usb_rcvbulkpipe(cdev->udev, cdev->bulk_in_endpointAddr); 181 char *send_buf = cdev->bulk_out_buffer; 182 char *recv_buf = cdev->bulk_in_buffer; 183 184 memcpy(fan_data->curve, point, sizeof(fan_data->curve)); 185 186 send_buf[0] = 0x40; 187 send_buf[1] = fan_data->fan_channel; 188 send_buf[2] = point[0].temp; 189 send_buf[3] = point[1].temp; 190 send_buf[4] = point[2].temp; 191 send_buf[5] = point[3].temp; 192 send_buf[6] = point[4].temp; 193 send_buf[7] = point[5].temp; 194 send_buf[8] = point[6].temp; 195 send_buf[9] = point[0].pwm; 196 send_buf[10] = point[1].pwm; 197 send_buf[11] = point[2].pwm; 198 send_buf[12] = point[3].pwm; 199 send_buf[13] = point[4].pwm; 200 send_buf[14] = point[5].pwm; 201 send_buf[15] = point[6].pwm; 202 203 retval = usb_bulk_msg(cdev->udev, sndpipe, send_buf, 16, &wrote, 100); 204 if (retval != 0) 205 return retval; 206 207 retval = usb_bulk_msg(cdev->udev, rcvpipe, recv_buf, 4, &wrote, 100); 208 if (retval != 0) 209 return retval; 210 211 if (!check_succes(send_buf[0], recv_buf)) 214 return 0; 215 } 216 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org