Hi Ricardo, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on power-supply/for-next] [also build test WARNING on robh/for-next v5.11-rc2 next-20210104] [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] url: https://github.com/0day-ci/linux/commits/Ricardo-Rivera-Matos/Introduce-the-BQ256XX-family-of-chargers/20210105-043028 base: https://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git for-next config: s390-randconfig-r005-20210105 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 5c951623bc8965fa1e89660f2f5f4a2944e4981a) 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 s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/0day-ci/linux/commit/82436c2c6d99c4effb187bbd09b47c4dc59a1f3d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ricardo-Rivera-Matos/Introduce-the-BQ256XX-family-of-chargers/20210105-043028 git checkout 82436c2c6d99c4effb187bbd09b47c4dc59a1f3d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): include/uapi/linux/swab.h:19:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \ ^ In file included from drivers/power/supply/bq256xx_charger.c:13: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32' ___constant_swab32(x) : \ ^ include/uapi/linux/swab.h:20:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \ ^ In file included from drivers/power/supply/bq256xx_charger.c:13: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32' ___constant_swab32(x) : \ ^ include/uapi/linux/swab.h:21:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \ ^ In file included from drivers/power/supply/bq256xx_charger.c:13: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32' ___constant_swab32(x) : \ ^ include/uapi/linux/swab.h:22:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0xff000000UL) >> 24))) ^ In file included from drivers/power/supply/bq256xx_charger.c:13: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:120:12: note: expanded from macro '__swab32' __fswab32(x)) ^ In file included from drivers/power/supply/bq256xx_charger.c:13: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ >> drivers/power/supply/bq256xx_charger.c:1644:29: warning: variable 'psy_cfg' is uninitialized when used here [-Wuninitialized] ret = bq256xx_parse_dt(bq, psy_cfg, dev); ^~~~~~~ drivers/power/supply/bq256xx_charger.c:1618:37: note: initialize the variable 'psy_cfg' to silence this warning struct power_supply_config *psy_cfg; ^ = NULL >> drivers/power/supply/bq256xx_charger.c:1720:36: warning: unused variable 'bq256xx_acpi_match' [-Wunused-const-variable] static const struct acpi_device_id bq256xx_acpi_match[] = { ^ 22 warnings generated. vim +/psy_cfg +1644 drivers/power/supply/bq256xx_charger.c 1612 1613 static int bq256xx_probe(struct i2c_client *client, 1614 const struct i2c_device_id *id) 1615 { 1616 struct device *dev = &client->dev; 1617 struct bq256xx_device *bq; 1618 struct power_supply_config *psy_cfg; 1619 1620 int ret; 1621 1622 bq = devm_kzalloc(dev, sizeof(*bq), GFP_KERNEL); 1623 if (!bq) 1624 return -ENOMEM; 1625 1626 bq->client = client; 1627 bq->dev = dev; 1628 bq->chip_info = &bq256xx_chip_info_tbl[id->driver_data]; 1629 1630 mutex_init(&bq->lock); 1631 1632 strncpy(bq->model_name, id->name, I2C_NAME_SIZE); 1633 1634 bq->regmap = devm_regmap_init_i2c(client, 1635 bq->chip_info->bq256xx_regmap_config); 1636 1637 if (IS_ERR(bq->regmap)) { 1638 dev_err(dev, "Failed to allocate register map\n"); 1639 return PTR_ERR(bq->regmap); 1640 } 1641 1642 i2c_set_clientdata(client, bq); 1643 > 1644 ret = bq256xx_parse_dt(bq, psy_cfg, dev); 1645 if (ret) { 1646 dev_err(dev, "Failed to read device tree properties%d\n", ret); 1647 return ret; 1648 } 1649 1650 ret = devm_add_action_or_reset(dev, bq256xx_charger_reset, bq); 1651 if (ret) 1652 return ret; 1653 1654 /* OTG reporting */ 1655 bq->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); 1656 if (!IS_ERR_OR_NULL(bq->usb2_phy)) { 1657 INIT_WORK(&bq->usb_work, bq256xx_usb_work); 1658 bq->usb_nb.notifier_call = bq256xx_usb_notifier; 1659 usb_register_notifier(bq->usb2_phy, &bq->usb_nb); 1660 } 1661 1662 bq->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3); 1663 if (!IS_ERR_OR_NULL(bq->usb3_phy)) { 1664 INIT_WORK(&bq->usb_work, bq256xx_usb_work); 1665 bq->usb_nb.notifier_call = bq256xx_usb_notifier; 1666 usb_register_notifier(bq->usb3_phy, &bq->usb_nb); 1667 } 1668 1669 if (client->irq) { 1670 ret = devm_request_threaded_irq(dev, client->irq, NULL, 1671 bq256xx_irq_handler_thread, 1672 IRQF_TRIGGER_FALLING | 1673 IRQF_ONESHOT, 1674 dev_name(&client->dev), bq); 1675 if (ret < 0) { 1676 dev_err(dev, "get irq fail: %d\n", ret); 1677 return ret; 1678 } 1679 } 1680 1681 ret = bq256xx_power_supply_init(bq, psy_cfg, dev); 1682 if (ret) { 1683 dev_err(dev, "Failed to register power supply\n"); 1684 return ret; 1685 } 1686 1687 ret = bq256xx_hw_init(bq); 1688 if (ret) { 1689 dev_err(dev, "Cannot initialize the chip.\n"); 1690 return ret; 1691 } 1692 1693 return ret; 1694 } 1695 1696 static const struct i2c_device_id bq256xx_i2c_ids[] = { 1697 { "bq25600", BQ25600 }, 1698 { "bq25600d", BQ25600D }, 1699 { "bq25601", BQ25601 }, 1700 { "bq25601d", BQ25601D }, 1701 { "bq25611d", BQ25611D }, 1702 { "bq25618", BQ25618 }, 1703 { "bq25619", BQ25619 }, 1704 {}, 1705 }; 1706 MODULE_DEVICE_TABLE(i2c, bq256xx_i2c_ids); 1707 1708 static const struct of_device_id bq256xx_of_match[] = { 1709 { .compatible = "ti,bq25600", .data = (void *)BQ25600 }, 1710 { .compatible = "ti,bq25600d", .data = (void *)BQ25600D }, 1711 { .compatible = "ti,bq25601", .data = (void *)BQ25601 }, 1712 { .compatible = "ti,bq25601d", .data = (void *)BQ25601D }, 1713 { .compatible = "ti,bq25611d", .data = (void *)BQ25611D }, 1714 { .compatible = "ti,bq25618", .data = (void *)BQ25618 }, 1715 { .compatible = "ti,bq25619", .data = (void *)BQ25619 }, 1716 { }, 1717 }; 1718 MODULE_DEVICE_TABLE(of, bq256xx_of_match); 1719 > 1720 static const struct acpi_device_id bq256xx_acpi_match[] = { 1721 { "bq25600", BQ25600 }, 1722 { "bq25600d", BQ25600D }, 1723 { "bq25601", BQ25601 }, 1724 { "bq25601d", BQ25601D }, 1725 { "bq25611d", BQ25611D }, 1726 { "bq25618", BQ25618 }, 1727 { "bq25619", BQ25619 }, 1728 {}, 1729 }; 1730 MODULE_DEVICE_TABLE(acpi, bq256xx_acpi_match); 1731 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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