Re: [PATCH v1 3/3] spi: lm70llp: Switch to use module_parport_driver()

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Hi Andy,

I love your patch! Yet something to improve:

[auto build test ERROR on spi/for-next]
[also build test ERROR on linus/master v5.11 next-20210215]
[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]

url:    https://github.com/0day-ci/linux/commits/Andy-Shevchenko/parport-Introduce-module_parport_driver-helper-macro/20210216-042909
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
config: powerpc-randconfig-r034-20210215 (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 powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # https://github.com/0day-ci/linux/commit/b436c5f6666ea5fb47d7b1826a66d4110bb37072
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Andy-Shevchenko/parport-Introduce-module_parport_driver-helper-macro/20210216-042909
        git checkout b436c5f6666ea5fb47d7b1826a66d4110bb37072
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc 

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

All errors (new ones prefixed by >>):

   ^
   arch/powerpc/include/asm/io.h:537:62: note: expanded from macro '__do_outl'
   #define __do_outl(val, port)    writel(val,(PCI_IO_ADDR)_IO_BASE+port);
                                              ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/spi/spi-lm70llp.c:19:
   In file included from include/linux/spi/spi.h:15:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:43:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(insb, (unsigned long p, void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:205:1: note: expanded from here
   __do_insb
   ^
   arch/powerpc/include/asm/io.h:556:56: note: expanded from macro '__do_insb'
   #define __do_insb(p, b, n)      readsb((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
                                          ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/spi/spi-lm70llp.c:19:
   In file included from include/linux/spi/spi.h:15:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:207:1: note: expanded from here
   __do_insw
   ^
   arch/powerpc/include/asm/io.h:557:56: note: expanded from macro '__do_insw'
   #define __do_insw(p, b, n)      readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
                                          ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/spi/spi-lm70llp.c:19:
   In file included from include/linux/spi/spi.h:15:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:209:1: note: expanded from here
   __do_insl
   ^
   arch/powerpc/include/asm/io.h:558:56: note: expanded from macro '__do_insl'
   #define __do_insl(p, b, n)      readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
                                          ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/spi/spi-lm70llp.c:19:
   In file included from include/linux/spi/spi.h:15:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:211:1: note: expanded from here
   __do_outsb
   ^
   arch/powerpc/include/asm/io.h:559:58: note: expanded from macro '__do_outsb'
   #define __do_outsb(p, b, n)     writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
                                           ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/spi/spi-lm70llp.c:19:
   In file included from include/linux/spi/spi.h:15:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:213:1: note: expanded from here
   __do_outsw
   ^
   arch/powerpc/include/asm/io.h:560:58: note: expanded from macro '__do_outsw'
   #define __do_outsw(p, b, n)     writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
                                           ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/spi/spi-lm70llp.c:19:
   In file included from include/linux/spi/spi.h:15:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:215:1: note: expanded from here
   __do_outsl
   ^
   arch/powerpc/include/asm/io.h:561:58: note: expanded from macro '__do_outsl'
   #define __do_outsl(p, b, n)     writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
                                           ~~~~~~~~~~~~~~~~~~~~~^
>> drivers/spi/spi-lm70llp.c:323:1: error: implicit declaration of function 'parport_add_driver' [-Werror,-Wimplicit-function-declaration]
   module_parport_driver(spi_lm70llp_drv);
   ^
   include/linux/parport.h:315:34: note: expanded from macro 'module_parport_driver'
           module_driver(__parport_driver, parport_add_driver, parport_del_driver)
                                           ^
>> drivers/spi/spi-lm70llp.c:323:1: error: implicit declaration of function 'parport_del_driver' [-Werror,-Wimplicit-function-declaration]
   include/linux/parport.h:315:54: note: expanded from macro 'module_parport_driver'
           module_driver(__parport_driver, parport_add_driver, parport_del_driver)
                                                               ^
   drivers/spi/spi-lm70llp.c:323:1: note: did you mean 'parport_del_port'?
   include/linux/parport.h:315:54: note: expanded from macro 'module_parport_driver'
           module_driver(__parport_driver, parport_add_driver, parport_del_driver)
                                                               ^
   include/linux/parport.h:328:6: note: 'parport_del_port' declared here
   void parport_del_port(struct parport *);
        ^
   12 warnings and 2 errors generated.


vim +/parport_add_driver +323 drivers/spi/spi-lm70llp.c

   316	
   317	static struct parport_driver spi_lm70llp_drv = {
   318		.name =		DRVNAME,
   319		.match_port =	spi_lm70llp_attach,
   320		.detach =	spi_lm70llp_detach,
   321		.devmodel =	true,
   322	};
 > 323	module_parport_driver(spi_lm70llp_drv);
   324	

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

Attachment: .config.gz
Description: application/gzip


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