Hi Andreas, kernel test robot noticed the following build warnings: [auto build test WARNING on sre-power-supply/for-next] [also build test WARNING on lee-mfd/for-mfd-next lee-leds/for-leds-next linus/master v6.11 next-20240918] [cannot apply to lee-mfd/for-mfd-fixes] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Andreas-Kemnade/dt-bindings-power-supply-Add-TI-TWL603X-charger/20240918-164406 base: https://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git for-next patch link: https://lore.kernel.org/r/20240918084132.928295-4-andreas%40kemnade.info patch subject: [PATCH 3/3] power: supply: initial support for TWL6030/32 config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240919/202409190409.0mOjgpq4-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 8663a75fa2f31299ab8d1d90288d9df92aadee88) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240919/202409190409.0mOjgpq4-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/202409190409.0mOjgpq4-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/power/supply/twl6030_charger.c:20: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 548 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/power/supply/twl6030_charger.c:20: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/power/supply/twl6030_charger.c:20: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 585 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ In file included from drivers/power/supply/twl6030_charger.c:24: In file included from include/linux/usb/otg.h:13: In file included from include/linux/phy/phy.h:17: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:21: In file included from include/linux/mm.h:2228: include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/power/supply/twl6030_charger.c:360:3: warning: label followed by a declaration is a C23 extension [-Wc23-extensions] 360 | u8 intstat; | ^ 8 warnings generated. vim +360 drivers/power/supply/twl6030_charger.c 345 346 static int twl6030_charger_usb_get_property(struct power_supply *psy, 347 enum power_supply_property psp, 348 union power_supply_propval *val) 349 { 350 struct twl6030_charger_info *charger = power_supply_get_drvdata(psy); 351 int ret; 352 u8 stat1; 353 354 ret = twl6030_charger_read(CONTROLLER_STAT1, &stat1); 355 if (ret) 356 return ret; 357 358 switch (psp) { 359 case POWER_SUPPLY_PROP_STATUS: > 360 u8 intstat; 361 362 if (!(stat1 & VBUS_DET)) { 363 val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; 364 break; 365 } 366 ret = twl6030_charger_read(CHARGERUSB_STATUS_INT2, &intstat); 367 if (ret) 368 return ret; 369 370 if (intstat & CHARGE_DONE) 371 val->intval = POWER_SUPPLY_STATUS_FULL; 372 else if (intstat & CURRENT_TERM) 373 val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; 374 else 375 val->intval = POWER_SUPPLY_STATUS_CHARGING; 376 break; 377 case POWER_SUPPLY_PROP_VOLTAGE_NOW: 378 if (!charger->channel_vusb) 379 return -ENODATA; 380 381 ret = iio_read_channel_processed_scale(charger->channel_vusb, &val->intval, 1000); 382 if (ret < 0) 383 return ret; 384 385 break; 386 case POWER_SUPPLY_PROP_ONLINE: 387 val->intval = !!(stat1 & VBUS_DET); 388 break; 389 case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: 390 val->intval = charger->input_current_limit; 391 break; 392 default: 393 return -EINVAL; 394 } 395 396 return 0; 397 } 398 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki