Re: [PATCH v3 05/13] pinctrl: samsung: Switch to use for_each_gpiochip_node() helper

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Hi Andy,

I love your patch! Yet something to improve:

[auto build test ERROR on a67ba3cf9551f8c92d5ec9d7eae1aadbb9127b57]

url:    https://github.com/intel-lab-lkp/linux/commits/Andy-Shevchenko/gpiolib-Two-new-helpers-and-way-toward-fwnode/20220330-225341
base:   a67ba3cf9551f8c92d5ec9d7eae1aadbb9127b57
config: riscv-randconfig-c006-20220331 (https://download.01.org/0day-ci/archive/20220401/202204010248.AB6ZnOyw-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 881350a92d821d4f8e4fa648443ed1d17e251188)
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 riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/3539d23dd289ca77a85d66fe8721e4febfc50ea4
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Andy-Shevchenko/gpiolib-Two-new-helpers-and-way-toward-fwnode/20220330-225341
        git checkout 3539d23dd289ca77a85d66fe8721e4febfc50ea4
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/pinctrl/samsung/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   In file included from drivers/pinctrl/samsung/pinctrl-s3c64xx.c:15:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/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:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           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'
   #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
                                                     ^
   In file included from drivers/pinctrl/samsung/pinctrl-s3c64xx.c:15:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/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:13:
   In file included from arch/riscv/include/asm/io.h:136:
   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/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                                     ^
   In file included from drivers/pinctrl/samsung/pinctrl-s3c64xx.c:15:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/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:13:
   In file included from arch/riscv/include/asm/io.h:136:
   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:1024:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
                                                     ~~~~~~~~~~ ^
>> drivers/pinctrl/samsung/pinctrl-s3c64xx.c:474:50: error: no member named 'of_node' in 'struct samsung_pin_bank'; did you mean 'fwnode'?
                   bank->irq_domain = irq_domain_add_linear(bank->of_node,
                                                                  ^~~~~~~
                                                                  fwnode
   drivers/pinctrl/samsung/pinctrl-samsung.h:168:24: note: 'fwnode' declared here
           struct fwnode_handle *fwnode;
                                 ^
   drivers/pinctrl/samsung/pinctrl-s3c64xx.c:746:50: error: no member named 'of_node' in 'struct samsung_pin_bank'; did you mean 'fwnode'?
                   bank->irq_domain = irq_domain_add_linear(bank->of_node,
                                                                  ^~~~~~~
                                                                  fwnode
   drivers/pinctrl/samsung/pinctrl-samsung.h:168:24: note: 'fwnode' declared here
           struct fwnode_handle *fwnode;
                                 ^
   7 warnings and 2 errors generated.


vim +474 drivers/pinctrl/samsung/pinctrl-s3c64xx.c

61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  444  
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  445  /**
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  446   * s3c64xx_eint_gpio_init() - setup handling of external gpio interrupts.
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  447   * @d: driver data of samsung pinctrl driver.
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  448   */
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  449  static int s3c64xx_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  450  {
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  451  	struct s3c64xx_eint_gpio_data *data;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  452  	struct samsung_pin_bank *bank;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  453  	struct device *dev = d->dev;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  454  	unsigned int nr_domains;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  455  	unsigned int i;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  456  
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  457  	if (!d->irq) {
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  458  		dev_err(dev, "irq number not available\n");
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  459  		return -EINVAL;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  460  	}
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  461  
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  462  	nr_domains = 0;
1bf00d7a6dbff0 drivers/pinctrl/samsung/pinctrl-s3c64xx.c Tomasz Figa      2014-09-23  463  	bank = d->pin_banks;
1bf00d7a6dbff0 drivers/pinctrl/samsung/pinctrl-s3c64xx.c Tomasz Figa      2014-09-23  464  	for (i = 0; i < d->nr_banks; ++i, ++bank) {
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  465  		unsigned int nr_eints;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  466  		unsigned int mask;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  467  
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  468  		if (bank->eint_type != EINT_TYPE_GPIO)
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  469  			continue;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  470  
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  471  		mask = bank->eint_mask;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  472  		nr_eints = fls(mask);
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  473  
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18 @474  		bank->irq_domain = irq_domain_add_linear(bank->of_node,
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  475  					nr_eints, &s3c64xx_gpio_irqd_ops, bank);
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  476  		if (!bank->irq_domain) {
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  477  			dev_err(dev, "gpio irq domain add failed\n");
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  478  			return -ENXIO;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  479  		}
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  480  
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  481  		++nr_domains;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  482  	}
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  483  
0ed2dd03b94b7b drivers/pinctrl/samsung/pinctrl-s3c64xx.c Kees Cook        2018-05-08  484  	data = devm_kzalloc(dev, struct_size(data, domains, nr_domains),
0ed2dd03b94b7b drivers/pinctrl/samsung/pinctrl-s3c64xx.c Kees Cook        2018-05-08  485  			    GFP_KERNEL);
fa5c0f46e2b9a1 drivers/pinctrl/samsung/pinctrl-s3c64xx.c Marek Szyprowski 2017-01-19  486  	if (!data)
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  487  		return -ENOMEM;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  488  	data->drvdata = d;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  489  
1bf00d7a6dbff0 drivers/pinctrl/samsung/pinctrl-s3c64xx.c Tomasz Figa      2014-09-23  490  	bank = d->pin_banks;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  491  	nr_domains = 0;
1bf00d7a6dbff0 drivers/pinctrl/samsung/pinctrl-s3c64xx.c Tomasz Figa      2014-09-23  492  	for (i = 0; i < d->nr_banks; ++i, ++bank) {
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  493  		if (bank->eint_type != EINT_TYPE_GPIO)
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  494  			continue;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  495  
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  496  		data->domains[nr_domains++] = bank->irq_domain;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  497  	}
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  498  
623a650ebc886f drivers/pinctrl/samsung/pinctrl-s3c64xx.c Thomas Gleixner  2015-06-21  499  	irq_set_chained_handler_and_data(d->irq, s3c64xx_eint_gpio_irq, data);
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  500  
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  501  	return 0;
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  502  }
61dd7261317770 drivers/pinctrl/pinctrl-s3c64xx.c         Tomasz Figa      2013-03-18  503  

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