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

From: kernel test robot
Date: Wed Aug 11 2021 - 07:04:30 EST


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@xxxxxxxxx>

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@xxxxxxxxxx>
:::::: CC: Linus Walleij <linus.walleij@xxxxxxxxxx>

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

Attachment: .config.gz
Description: application/gzip