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Date: Wed, 24 Apr 2024 07:42:07 +0800
From: kernel test robot <lkp@intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	Frank Li <Frank.Li@nxp.com>,
	Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= <kwilczynski@kernel.org>,
	Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= <u.kleine-koenig@pengutronix.de>,
	linux-omap@vger.kernel.org, linux-pci@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
	imx@lists.linux.dev, linux-amlogic@lists.infradead.org,
	linux-arm-msm@vger.kernel.org, linux-tegra@vger.kernel.org
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Siddharth Vadapalli <s-vadapalli@ti.com>,
	Lorenzo Pieralisi <lpieralisi@kernel.org>,
	Rob Herring <robh@kernel.org>, Bjorn Helgaas <helgaas@kernel.org>,
	Richard Zhu <hongxing.zhu@nxp.com>,
	Lucas Stach <l.stach@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>, Yue Wang <yue.wang@amlogic.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Xiaowei Song <songxiaowei@hisilicon.com>
Subject: Re: [PATCH v2 2/4] PCI: dwc: Remove unused of_gpio.h
Message-ID: <202404240725.Jlvuk7P3-lkp@intel.com>
References: <20240423172208.2723892-3-andriy.shevchenko@linux.intel.com>
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In-Reply-To: <20240423172208.2723892-3-andriy.shevchenko@linux.intel.com>

Hi Andy,

kernel test robot noticed the following build errors:

[auto build test ERROR on pci/next]
[also build test ERROR on pci/for-linus mani-mhi/mhi-next linus/master v6.9-rc5 next-20240423]
[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/Andy-Shevchenko/PCI-aardvark-Remove-unused-of_gpio-h/20240424-012448
base:   https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next
patch link:    https://lore.kernel.org/r/20240423172208.2723892-3-andriy.shevchenko%40linux.intel.com
patch subject: [PATCH v2 2/4] PCI: dwc: Remove unused of_gpio.h
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20240424/202404240725.Jlvuk7P3-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 5ef5eb66fb428aaf61fb51b709f065c069c11242)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240424/202404240725.Jlvuk7P3-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202404240725.Jlvuk7P3-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/pci/controller/dwc/pci-dra7xx.c:12:
   In file included from include/linux/device.h:32:
   In file included from include/linux/device/driver.h:21:
   In file included from include/linux/module.h:19:
   In file included from include/linux/elf.h:6:
   In file included from arch/s390/include/asm/elf.h:173:
   In file included from arch/s390/include/asm/mmu_context.h:11:
   In file included from arch/s390/include/asm/pgalloc.h:18:
   In file included from include/linux/mm.h:2208:
   include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     508 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     509 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     515 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     516 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     522 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     527 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     528 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     536 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     537 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/pci/controller/dwc/pci-dra7xx.c:15:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/s390/include/asm/io.h:78:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     547 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     560 |         val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
      37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
         |                                                           ^
   include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
     102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
         |                                                      ^
   In file included from drivers/pci/controller/dwc/pci-dra7xx.c:15:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/s390/include/asm/io.h:78:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     573 |         val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
      35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                                                           ^
   include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
     115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
         |                                                      ^
   In file included from drivers/pci/controller/dwc/pci-dra7xx.c:15:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/s390/include/asm/io.h:78:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     584 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     594 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     604 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     692 |         readsb(PCI_IOBASE + addr, buffer, count);
         |                ~~~~~~~~~~ ^
   include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     700 |         readsw(PCI_IOBASE + addr, buffer, count);
         |                ~~~~~~~~~~ ^
   include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     708 |         readsl(PCI_IOBASE + addr, buffer, count);
         |                ~~~~~~~~~~ ^
   include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     717 |         writesb(PCI_IOBASE + addr, buffer, count);
         |                 ~~~~~~~~~~ ^
   include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     726 |         writesw(PCI_IOBASE + addr, buffer, count);
         |                 ~~~~~~~~~~ ^
   include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     735 |         writesl(PCI_IOBASE + addr, buffer, count);
         |                 ~~~~~~~~~~ ^
>> drivers/pci/controller/dwc/pci-dra7xx.c:262:2: error: call to undeclared function 'chained_irq_enter'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     262 |         chained_irq_enter(chip, desc);
         |         ^
>> drivers/pci/controller/dwc/pci-dra7xx.c:284:2: error: call to undeclared function 'chained_irq_exit'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     284 |         chained_irq_exit(chip, desc);
         |         ^
   17 warnings and 2 errors generated.


vim +/chained_irq_enter +262 drivers/pci/controller/dwc/pci-dra7xx.c

47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  252  
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  253  static void dra7xx_pcie_msi_irq_handler(struct irq_desc *desc)
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  254  {
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  255  	struct irq_chip *chip = irq_desc_get_chip(desc);
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  256  	struct dra7xx_pcie *dra7xx;
60b3c27fb9b92b drivers/pci/controller/dwc/pci-dra7xx.c Serge Semin            2022-06-24  257  	struct dw_pcie_rp *pp;
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  258  	struct dw_pcie *pci;
09b2d20349e37a drivers/pci/dwc/pci-dra7xx.c            Vignesh R              2017-12-29  259  	unsigned long reg;
d21faba11693c1 drivers/pci/controller/dwc/pci-dra7xx.c Marc Zyngier           2021-08-02  260  	u32 bit;
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  261  
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27 @262  	chained_irq_enter(chip, desc);
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  263  
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  264  	pp = irq_desc_get_handler_data(desc);
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  265  	pci = to_dw_pcie_from_pp(pp);
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  266  	dra7xx = to_dra7xx_pcie(pci);
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  267  
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  268  	reg = dra7xx_pcie_readl(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MSI);
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  269  	dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MSI, reg);
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  270  
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  271  	switch (reg) {
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  272  	case MSI:
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27  273  		dra7xx_pcie_handle_msi_irq(pp);
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  274  		break;
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  275  	case INTA:
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  276  	case INTB:
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  277  	case INTC:
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  278  	case INTD:
d21faba11693c1 drivers/pci/controller/dwc/pci-dra7xx.c Marc Zyngier           2021-08-02  279  		for_each_set_bit(bit, &reg, PCI_NUM_INTX)
d21faba11693c1 drivers/pci/controller/dwc/pci-dra7xx.c Marc Zyngier           2021-08-02  280  			generic_handle_domain_irq(dra7xx->irq_domain, bit);
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  281  		break;
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  282  	}
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  283  
9a5595ab21a9d1 drivers/pci/controller/dwc/pci-dra7xx.c Vignesh Raghavendra    2020-03-27 @284  	chained_irq_exit(chip, desc);
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  285  }
47ff3de911a728 drivers/pci/host/pci-dra7xx.c           Kishon Vijay Abraham I 2014-07-22  286  

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