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Subjectdrivers/pci/controller/pci-ftpci100.c:37:9: warning: 'PCI_IOSIZE' macro redefined
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 61556703b610a104de324e4f061dc6cf7b218b46
commit: 482cd90cd781c9b5607ed9c9f8641dc95a9d4cce MIPS: Loongson64: Define PCI_IOBASE
date: 9 months ago
config: mips-randconfig-r032-20210207 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476)
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 mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=482cd90cd781c9b5607ed9c9f8641dc95a9d4cce
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 482cd90cd781c9b5607ed9c9f8641dc95a9d4cce
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips

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-ftpci100.c:37:9: warning: 'PCI_IOSIZE' macro redefined [-Wmacro-redefined]
#define PCI_IOSIZE 0x00
^
arch/mips/include/asm/mach-loongson64/spaces.h:11:9: note: previous definition is here
#define PCI_IOSIZE SZ_16M
^
1 warning generated.
Assembler messages:
Fatal error: invalid -march= option: `mips64r2'
clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)


vim +/PCI_IOSIZE +37 drivers/pci/controller/pci-ftpci100.c

9e2aee80c78d50 drivers/pci/host/pci-ftpci100.c Rob Herring 2018-05-11 32
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 33 /*
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 34 * Special configuration registers directly in the first few words
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 35 * in I/O space.
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 36 */
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 @37 #define PCI_IOSIZE 0x00
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 38 #define PCI_PROT 0x04 /* AHB protection */
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 39 #define PCI_CTRL 0x08 /* PCI control signal */
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 40 #define PCI_SOFTRST 0x10 /* Soft reset counter and response error enable */
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 41 #define PCI_CONFIG 0x28 /* PCI configuration command register */
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 42 #define PCI_DATA 0x2C
d3c68e0a7e34af drivers/pci/host/pci-ftpci100.c Linus Walleij 2017-03-12 43

:::::: The code at line 37 was first introduced by commit
:::::: d3c68e0a7e34af2b86f5408c4d6e794a38bbd9e1 PCI: faraday: Add Faraday Technology FTPCI100 PCI Host Bridge driver

:::::: TO: Linus Walleij <linus.walleij@linaro.org>
:::::: CC: Bjorn Helgaas <bhelgaas@google.com>

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