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SubjectRe: [PATCH v2 1/5] spmi: pmic-arb: hardcode IRQ counts
Hi Brian,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on pinctrl/devel]
[also build test WARNING on v5.0-rc1 next-20190103]
[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/Brian-Masney/qcom-spmi-add-support-for-hierarchical-IRQ-chip/20190107-110503
base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
config: arm64-allmodconfig (attached as .config)
compiler: aarch64-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
GCC_VERSION=7.2.0 make.cross ARCH=arm64

All warnings (new ones prefixed by >>):

drivers/pinctrl//qcom/pinctrl-spmi-gpio.c: In function 'pmic_gpio_probe':
>> drivers/pinctrl//qcom/pinctrl-spmi-gpio.c:974:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
npins = (int) of_id->data;
^

vim +974 drivers/pinctrl//qcom/pinctrl-spmi-gpio.c

952
953 static int pmic_gpio_probe(struct platform_device *pdev)
954 {
955 const struct of_device_id *of_id;
956 struct device *dev = &pdev->dev;
957 struct pinctrl_pin_desc *pindesc;
958 struct pinctrl_desc *pctrldesc;
959 struct pmic_gpio_pad *pad, *pads;
960 struct pmic_gpio_state *state;
961 int ret, npins, i;
962 u32 reg;
963
964 ret = of_property_read_u32(dev->of_node, "reg", &reg);
965 if (ret < 0) {
966 dev_err(dev, "missing base address");
967 return ret;
968 }
969
970 of_id = of_match_device(pmic_gpio_of_match, &pdev->dev);
971 if (!of_id)
972 return -EINVAL;
973
> 974 npins = (int) of_id->data;
975
976 state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL);
977 if (!state)
978 return -ENOMEM;
979
980 platform_set_drvdata(pdev, state);
981
982 state->dev = &pdev->dev;
983 state->map = dev_get_regmap(dev->parent, NULL);
984
985 pindesc = devm_kcalloc(dev, npins, sizeof(*pindesc), GFP_KERNEL);
986 if (!pindesc)
987 return -ENOMEM;
988
989 pads = devm_kcalloc(dev, npins, sizeof(*pads), GFP_KERNEL);
990 if (!pads)
991 return -ENOMEM;
992
993 pctrldesc = devm_kzalloc(dev, sizeof(*pctrldesc), GFP_KERNEL);
994 if (!pctrldesc)
995 return -ENOMEM;
996
997 pctrldesc->pctlops = &pmic_gpio_pinctrl_ops;
998 pctrldesc->pmxops = &pmic_gpio_pinmux_ops;
999 pctrldesc->confops = &pmic_gpio_pinconf_ops;
1000 pctrldesc->owner = THIS_MODULE;
1001 pctrldesc->name = dev_name(dev);
1002 pctrldesc->pins = pindesc;
1003 pctrldesc->npins = npins;
1004 pctrldesc->num_custom_params = ARRAY_SIZE(pmic_gpio_bindings);
1005 pctrldesc->custom_params = pmic_gpio_bindings;
1006 #ifdef CONFIG_DEBUG_FS
1007 pctrldesc->custom_conf_items = pmic_conf_items;
1008 #endif
1009
1010 for (i = 0; i < npins; i++, pindesc++) {
1011 pad = &pads[i];
1012 pindesc->drv_data = pad;
1013 pindesc->number = i;
1014 pindesc->name = pmic_gpio_groups[i];
1015
1016 pad->irq = platform_get_irq(pdev, i);
1017 if (pad->irq < 0)
1018 return pad->irq;
1019
1020 pad->base = reg + i * PMIC_GPIO_ADDRESS_RANGE;
1021
1022 ret = pmic_gpio_populate(state, pad);
1023 if (ret < 0)
1024 return ret;
1025 }
1026
1027 state->chip = pmic_gpio_gpio_template;
1028 state->chip.parent = dev;
1029 state->chip.base = -1;
1030 state->chip.ngpio = npins;
1031 state->chip.label = dev_name(dev);
1032 state->chip.of_gpio_n_cells = 2;
1033 state->chip.can_sleep = false;
1034
1035 state->ctrl = devm_pinctrl_register(dev, pctrldesc, state);
1036 if (IS_ERR(state->ctrl))
1037 return PTR_ERR(state->ctrl);
1038
1039 ret = gpiochip_add_data(&state->chip, state);
1040 if (ret) {
1041 dev_err(state->dev, "can't add gpio chip\n");
1042 return ret;
1043 }
1044
1045 /*
1046 * For DeviceTree-supported systems, the gpio core checks the
1047 * pinctrl's device node for the "gpio-ranges" property.
1048 * If it is present, it takes care of adding the pin ranges
1049 * for the driver. In this case the driver can skip ahead.
1050 *
1051 * In order to remain compatible with older, existing DeviceTree
1052 * files which don't set the "gpio-ranges" property or systems that
1053 * utilize ACPI the driver has to call gpiochip_add_pin_range().
1054 */
1055 if (!of_property_read_bool(dev->of_node, "gpio-ranges")) {
1056 ret = gpiochip_add_pin_range(&state->chip, dev_name(dev), 0, 0,
1057 npins);
1058 if (ret) {
1059 dev_err(dev, "failed to add pin range\n");
1060 goto err_range;
1061 }
1062 }
1063
1064 return 0;
1065
1066 err_range:
1067 gpiochip_remove(&state->chip);
1068 return ret;
1069 }
1070

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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