drivers/pci/controller/pci-ixp4xx.c:38: warning: "IXP4XX_PCI_CSR" redefined

* drivers/pci/controller/pci-ixp4xx.c:38: warning: "IXP4XX_PCI_CSR" redefined
@ 2021-08-11 11:03 ` kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-08-11 11:03 UTC (permalink / raw)
  To: Geert Uytterhoeven; +Cc: kbuild-all, linux-kernel, Arnd Bergmann, Linus Walleij

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   761c6d7ec820f123b931e7b8ef7ec7c8564e450f
commit: 5f291bfd33c8995c69f5a50f21445a4a93584ed2 arm: Typo s/PCI_IXP4XX_LEGACY/IXP4XX_PCI_LEGACY/
date:   4 weeks ago
config: arm-randconfig-r032-20210811 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 10.3.0
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f291bfd33c8995c69f5a50f21445a4a93584ed2
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 5f291bfd33c8995c69f5a50f21445a4a93584ed2
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash drivers/pci/controller/

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

All warnings (new ones prefixed by >>):

>> drivers/pci/controller/pci-ixp4xx.c:38: warning: "IXP4XX_PCI_CSR" redefined
      38 | #define IXP4XX_PCI_CSR   0x1c
         | 
   In file included from arch/arm/mach-ixp4xx/include/mach/hardware.h:23,
                    from arch/arm/mach-ixp4xx/include/mach/io.h:15,
                    from arch/arm/include/asm/io.h:198,
                    from include/linux/io.h:13,
                    from drivers/pci/controller/pci-ixp4xx.c:20:
   arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h:221: note: this is the location of the previous definition
     221 | #define IXP4XX_PCI_CSR(x) ((volatile u32 *)(IXP4XX_PCI_CFG_BASE_VIRT+(x)))
         | 
   drivers/pci/controller/pci-ixp4xx.c:148:12: error: 'ixp4xx_pci_read' redeclared as different kind of symbol
     148 | static int ixp4xx_pci_read(struct ixp4xx_pci *p, u32 addr, u32 cmd, u32 *data)
         |            ^~~~~~~~~~~~~~~
   In file included from arch/arm/include/asm/io.h:198,
                    from include/linux/io.h:13,
                    from drivers/pci/controller/pci-ixp4xx.c:20:
   arch/arm/mach-ixp4xx/include/mach/io.h:17:14: note: previous declaration of 'ixp4xx_pci_read' was here
      17 | extern int (*ixp4xx_pci_read)(u32 addr, u32 cmd, u32* data);
         |              ^~~~~~~~~~~~~~~
   drivers/pci/controller/pci-ixp4xx.c:173:12: error: conflicting types for 'ixp4xx_pci_write'
     173 | static int ixp4xx_pci_write(struct ixp4xx_pci *p, u32 addr, u32 cmd, u32 data)
         |            ^~~~~~~~~~~~~~~~
   In file included from arch/arm/include/asm/io.h:198,
                    from include/linux/io.h:13,
                    from drivers/pci/controller/pci-ixp4xx.c:20:
   arch/arm/mach-ixp4xx/include/mach/io.h:18:12: note: previous declaration of 'ixp4xx_pci_write' was here
      18 | extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data);
         |            ^~~~~~~~~~~~~~~~

vim +/IXP4XX_PCI_CSR +38 drivers/pci/controller/pci-ixp4xx.c

f7821b49345848 Linus Walleij 2021-05-03  29  
f7821b49345848 Linus Walleij 2021-05-03  30  /* Register offsets */
f7821b49345848 Linus Walleij 2021-05-03  31  #define IXP4XX_PCI_NP_AD		0x00
f7821b49345848 Linus Walleij 2021-05-03  32  #define IXP4XX_PCI_NP_CBE		0x04
f7821b49345848 Linus Walleij 2021-05-03  33  #define IXP4XX_PCI_NP_WDATA		0x08
f7821b49345848 Linus Walleij 2021-05-03  34  #define IXP4XX_PCI_NP_RDATA		0x0c
f7821b49345848 Linus Walleij 2021-05-03  35  #define IXP4XX_PCI_CRP_AD_CBE		0x10
f7821b49345848 Linus Walleij 2021-05-03  36  #define IXP4XX_PCI_CRP_WDATA		0x14
f7821b49345848 Linus Walleij 2021-05-03  37  #define IXP4XX_PCI_CRP_RDATA		0x18
f7821b49345848 Linus Walleij 2021-05-03 @38  #define IXP4XX_PCI_CSR			0x1c
f7821b49345848 Linus Walleij 2021-05-03  39  #define IXP4XX_PCI_ISR			0x20
f7821b49345848 Linus Walleij 2021-05-03  40  #define IXP4XX_PCI_INTEN		0x24
f7821b49345848 Linus Walleij 2021-05-03  41  #define IXP4XX_PCI_DMACTRL		0x28
f7821b49345848 Linus Walleij 2021-05-03  42  #define IXP4XX_PCI_AHBMEMBASE		0x2c
f7821b49345848 Linus Walleij 2021-05-03  43  #define IXP4XX_PCI_AHBIOBASE		0x30
f7821b49345848 Linus Walleij 2021-05-03  44  #define IXP4XX_PCI_PCIMEMBASE		0x34
f7821b49345848 Linus Walleij 2021-05-03  45  #define IXP4XX_PCI_AHBDOORBELL		0x38
f7821b49345848 Linus Walleij 2021-05-03  46  #define IXP4XX_PCI_PCIDOORBELL		0x3c
f7821b49345848 Linus Walleij 2021-05-03  47  #define IXP4XX_PCI_ATPDMA0_AHBADDR	0x40
f7821b49345848 Linus Walleij 2021-05-03  48  #define IXP4XX_PCI_ATPDMA0_PCIADDR	0x44
f7821b49345848 Linus Walleij 2021-05-03  49  #define IXP4XX_PCI_ATPDMA0_LENADDR	0x48
f7821b49345848 Linus Walleij 2021-05-03  50  #define IXP4XX_PCI_ATPDMA1_AHBADDR	0x4c
f7821b49345848 Linus Walleij 2021-05-03  51  #define IXP4XX_PCI_ATPDMA1_PCIADDR	0x50
f7821b49345848 Linus Walleij 2021-05-03  52  #define IXP4XX_PCI_ATPDMA1_LENADDR	0x54
f7821b49345848 Linus Walleij 2021-05-03  53  

:::::: The code at line 38 was first introduced by commit
:::::: f7821b49345848246692c6e0aa170c8bc6723f86 PCI: ixp4xx: Add a new driver for IXP4xx

:::::: TO: Linus Walleij <linus.walleij@linaro.org>
:::::: CC: Linus Walleij <linus.walleij@linaro.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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