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Date:   Sun, 21 Aug 2022 18:26:40 +0800
From:   Baoquan He <bhe@redhat.com>
To:     kernel test robot <lkp@intel.com>
Cc:     linux-kernel@vger.kernel.org, kbuild-all@lists.01.org,
        "James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
        Helge Deller <deller@gmx.de>
Subject: Re: [PATCH v2 08/11] parisc: mm: Convert to GENERIC_IOREMAP
Message-ID: <YwIIYHYnkJkY4yf3@MiWiFi-R3L-srv>
References: <20220820003125.353570-9-bhe@redhat.com>
 <202208201135.YyN9CXsu-lkp@intel.com>
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In-Reply-To: <202208201135.YyN9CXsu-lkp@intel.com>
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Hi,

On 08/20/22 at 12:03pm, kernel test robot wrote:
> Hi Baoquan,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on akpm-mm/mm-everything]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Baoquan-He/mm-ioremap-Convert-architectures-to-take-GENERIC_IOREMAP-way/20220820-083435
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> config: parisc-randconfig-r005-20220820 (https://download.01.org/0day-ci/archive/20220820/202208201135.YyN9CXsu-lkp@intel.com/config)
> compiler: hppa-linux-gcc (GCC) 12.1.0
> 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://github.com/intel-lab-lkp/linux/commit/570f2a3347cc83c9ea71d3dbbebfad8ea085ecc6
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Baoquan-He/mm-ioremap-Convert-architectures-to-take-GENERIC_IOREMAP-way/20220820-083435
>         git checkout 570f2a3347cc83c9ea71d3dbbebfad8ea085ecc6
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc prepare

Thanks for reporting. While it failed with "hppa-linux-gcc: unknown compiler" as below showing. Could you help check and tell what's wrong?

[root@ ~]# ls
0day  anaconda-ks.cfg  bin  EFI_BOOT_ENTRY.TXT  linux  NETBOOT_METHOD.TXT  original-ks.cfg  RECIPE.TXT
[root@ ~]# ls 0day/gcc-12.1.0-nolibc/
hppa-linux  x86_64-gcc-12.1.0-nolibc_hppa-linux.tar.xz
[root@ ~]# ls bin/make.cross 
bin/make.cross
[root@ ~]# pwd
/root
[root@ ~]# cd linux/
[root@ linux]# pwd
/root/linux

[root@ linux]# COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=/root/linux/build_dir ARCH=parisc prepare
Compiler will be installed in /root/0day
PATH=/root/0day/gcc-12.1.0-nolibc/hppa-linux/bin:/root/.local/bin:/root/bin:/usr/lib64/ccache:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
make --keep-going --jobs=160 W=1 O=/root/linux/build_dir ARCH=parisc prepare
make[1]: Entering directory '/root/linux/build_dir'
/root/0day/gcc-12.1.0-nolibc/hppa-linux/bin/hppa-linux-gcc: /root/0day/gcc-12.1.0-nolibc/hppa-linux/bin/hppa-linux-gcc: cannot execute binary file
  SYNC    include/config/auto.conf.cmd
/root/0day/gcc-12.1.0-nolibc/hppa-linux/bin/hppa-linux-gcc: /root/0day/gcc-12.1.0-nolibc/hppa-linux/bin/hppa-linux-gcc: cannot execute binary file
  GEN     Makefile
hppa-linux-gcc: unknown compiler
scripts/Kconfig.include:44: Sorry, this compiler is not supported.
make[3]: *** [../scripts/kconfig/Makefile:77: syncconfig] Error 1
make[2]: *** [../Makefile:632: syncconfig] Error 2
make[1]: *** [/root/linux/Makefile:734: include/config/auto.conf.cmd] Error 2
make[1]: Failed to remake makefile 'include/config/auto.conf.cmd'.
make[1]: Failed to remake makefile 'include/config/auto.conf'.
  GEN     Makefile
Error: kernelrelease not valid - run 'make prepare' to update it
make[1]: Target 'prepare' not remade because of errors.
make[1]: Leaving directory '/root/linux/build_dir'
make: *** [Makefile:222: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.


> 
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@intel.com>
> 
> All error/warnings (new ones prefixed by >>):
> 
>    In file included from arch/parisc/include/asm/io.h:315,
>                     from include/linux/io.h:13,
>                     from include/linux/irq.h:20,
>                     from arch/parisc/include/asm/hardirq.h:13,
>                     from include/linux/hardirq.h:11,
>                     from arch/parisc/kernel/asm-offsets.c:21:
> >> include/asm-generic/iomap.h:97: warning: "ioremap_wc" redefined
>       97 | #define ioremap_wc ioremap
>          | 
>    arch/parisc/include/asm/io.h:135: note: this is the location of the previous definition
>      135 | #define ioremap_wc(addr, size)  \
>          | 
>    include/linux/io.h: In function 'pci_remap_cfgspace':
> >> include/linux/io.h:89:44: error: implicit declaration of function 'ioremap'; did you mean 'ioremap_np'? [-Werror=implicit-function-declaration]
>       89 |         return ioremap_np(offset, size) ?: ioremap(offset, size);
>          |                                            ^~~~~~~
>          |                                            ioremap_np
> >> include/linux/io.h:89:42: warning: pointer/integer type mismatch in conditional expression
>       89 |         return ioremap_np(offset, size) ?: ioremap(offset, size);
>          |                                          ^
>    cc1: some warnings being treated as errors
>    make[2]: *** [scripts/Makefile.build:117: arch/parisc/kernel/asm-offsets.s] Error 1
>    make[2]: Target '__build' not remade because of errors.
>    make[1]: *** [Makefile:1207: prepare0] Error 2
>    make[1]: Target 'prepare' not remade because of errors.
>    make: *** [Makefile:222: __sub-make] Error 2
>    make: Target 'prepare' not remade because of errors.
> 
> 
> vim +89 include/linux/io.h
> 
> 7d3dcf26a6559f Christoph Hellwig 2015-08-10  72  
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  73  #ifdef CONFIG_PCI
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  74  /*
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  75   * The PCI specifications (Rev 3.0, 3.2.5 "Transaction Ordering and
> b10eb2d50911f9 Hector Martin     2021-03-25  76   * Posting") mandate non-posted configuration transactions. This default
> b10eb2d50911f9 Hector Martin     2021-03-25  77   * implementation attempts to use the ioremap_np() API to provide this
> b10eb2d50911f9 Hector Martin     2021-03-25  78   * on arches that support it, and falls back to ioremap() on those that
> b10eb2d50911f9 Hector Martin     2021-03-25  79   * don't. Overriding this function is deprecated; arches that properly
> b10eb2d50911f9 Hector Martin     2021-03-25  80   * support non-posted accesses should implement ioremap_np() instead, which
> b10eb2d50911f9 Hector Martin     2021-03-25  81   * this default implementation can then use to return mappings compliant with
> b10eb2d50911f9 Hector Martin     2021-03-25  82   * the PCI specification.
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  83   */
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  84  #ifndef pci_remap_cfgspace
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  85  #define pci_remap_cfgspace pci_remap_cfgspace
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  86  static inline void __iomem *pci_remap_cfgspace(phys_addr_t offset,
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  87  					       size_t size)
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  88  {
> b10eb2d50911f9 Hector Martin     2021-03-25 @89  	return ioremap_np(offset, size) ?: ioremap(offset, size);
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  90  }
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  91  #endif
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  92  #endif
> cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19  93  
> 
> -- 
> 0-DAY CI Kernel Test Service
> https://01.org/lkp
>