Re: [PATCH v7 01/10] Consolidate IO memcpy/memset into iomap_copy.c

Hi Julian,

kernel test robot noticed the following build errors:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on deller-parisc/for-next linus/master arm/for-next arm/fixes v6.12-rc1 next-20241002]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Julian-Vetter/Consolidate-IO-memcpy-memset-into-iomap_copy-c/20240930-213742
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link:    https://lore.kernel.org/r/20240930132321.2785718-2-jvetter%40kalrayinc.com
patch subject: [PATCH v7 01/10] Consolidate IO memcpy/memset into iomap_copy.c
config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20241003/[email protected]/config)
compiler: powerpc-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241003/[email protected]/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>):

   In file included from include/linux/io.h:14,
                    from include/linux/irq.h:20,
                    from arch/powerpc/include/asm/hardirq.h:6,
                    from include/linux/hardirq.h:11,
                    from include/linux/interrupt.h:11,
                    from include/linux/kernel_stat.h:8,
                    from include/linux/cgroup.h:25,
                    from include/linux/memcontrol.h:13,
                    from include/linux/swap.h:9,
                    from include/linux/suspend.h:5,
                    from arch/powerpc/kernel/asm-offsets.c:21:
>> arch/powerpc/include/asm/io.h:709:23: error: conflicting types for 'memcpy_fromio'; have 'void(void *, const volatile void *, size_t)' {aka 'void(void *, const volatile void *, unsigned int)'}
     709 | #define memcpy_fromio memcpy_fromio
         |                       ^~~~~~~~~~~~~
   include/asm-generic/io.h:105:13: note: in expansion of macro 'memcpy_fromio'
     105 | extern void memcpy_fromio(void *to, const volatile void __iomem *from,
         |             ^~~~~~~~~~~~~
   arch/powerpc/include/asm/io-defs.h:58:18: note: previous definition of 'memcpy_fromio' with type 'void(void *, const volatile void *, long unsigned int)'
      58 | DEF_PCI_AC_NORET(memcpy_fromio, (void *d, const PCI_IO_ADDR s, unsigned long n),
         |                  ^~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:664:20: note: in definition of macro 'DEF_PCI_AC_NORET'
     664 | static inline void name at                                      \
         |                    ^~~~
>> arch/powerpc/include/asm/io.h:710:21: error: conflicting types for 'memcpy_toio'; have 'void(volatile void *, const void *, size_t)' {aka 'void(volatile void *, const void *, unsigned int)'}
     710 | #define memcpy_toio memcpy_toio
         |                     ^~~~~~~~~~~
   include/asm-generic/io.h:107:13: note: in expansion of macro 'memcpy_toio'
     107 | extern void memcpy_toio(volatile void __iomem *to, const void *from,
         |             ^~~~~~~~~~~
   arch/powerpc/include/asm/io-defs.h:60:18: note: previous definition of 'memcpy_toio' with type 'void(volatile void *, const void *, long unsigned int)'
      60 | DEF_PCI_AC_NORET(memcpy_toio, (PCI_IO_ADDR d, const void *s, unsigned long n),
         |                  ^~~~~~~~~~~
   arch/powerpc/include/asm/io.h:664:20: note: in definition of macro 'DEF_PCI_AC_NORET'
     664 | static inline void name at                                      \
         |                    ^~~~
>> arch/powerpc/include/asm/io.h:708:19: error: conflicting types for 'memset_io'; have 'void(volatile void *, int,  size_t)' {aka 'void(volatile void *, int,  unsigned int)'}
     708 | #define memset_io memset_io
         |                   ^~~~~~~~~
   include/asm-generic/io.h:109:13: note: in expansion of macro 'memset_io'
     109 | extern void memset_io(volatile void __iomem *dst, int c, size_t count);
         |             ^~~~~~~~~
   arch/powerpc/include/asm/io-defs.h:56:18: note: previous definition of 'memset_io' with type 'void(volatile void *, int,  long unsigned int)'
      56 | DEF_PCI_AC_NORET(memset_io, (PCI_IO_ADDR a, int c, unsigned long n),
         |                  ^~~~~~~~~
   arch/powerpc/include/asm/io.h:664:20: note: in definition of macro 'DEF_PCI_AC_NORET'
     664 | static inline void name at                                      \
         |                    ^~~~
   make[3]: *** [scripts/Makefile.build:117: arch/powerpc/kernel/asm-offsets.s] Error 1
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1193: prepare0] Error 2
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:224: __sub-make] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:224: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +709 arch/powerpc/include/asm/io.h

4cb3cee03d558f include/asm-powerpc/io.h      Benjamin Herrenschmidt 2006-11-11  676  
4cb3cee03d558f include/asm-powerpc/io.h      Benjamin Herrenschmidt 2006-11-11  677  /* Some drivers check for the presence of readq & writeq with
4cb3cee03d558f include/asm-powerpc/io.h      Benjamin Herrenschmidt 2006-11-11  678   * a #ifdef, so we make them happy here.
4cb3cee03d558f include/asm-powerpc/io.h      Benjamin Herrenschmidt 2006-11-11  679   */
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  680  #define readb readb
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  681  #define readw readw
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  682  #define readl readl
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  683  #define writeb writeb
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  684  #define writew writew
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  685  #define writel writel
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  686  #define readsb readsb
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  687  #define readsw readsw
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  688  #define readsl readsl
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  689  #define writesb writesb
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  690  #define writesw writesw
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  691  #define writesl writesl
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  692  #define inb inb
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  693  #define inw inw
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  694  #define inl inl
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  695  #define outb outb
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  696  #define outw outw
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  697  #define outl outl
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  698  #define insb insb
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  699  #define insw insw
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  700  #define insl insl
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  701  #define outsb outsb
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  702  #define outsw outsw
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21  703  #define outsl outsl
68a64357d15ae4 include/asm-powerpc/io.h      Benjamin Herrenschmidt 2006-11-13  704  #ifdef __powerpc64__
4cb3cee03d558f include/asm-powerpc/io.h      Benjamin Herrenschmidt 2006-11-11  705  #define readq	readq
4cb3cee03d558f include/asm-powerpc/io.h      Benjamin Herrenschmidt 2006-11-11  706  #define writeq	writeq
68a64357d15ae4 include/asm-powerpc/io.h      Benjamin Herrenschmidt 2006-11-13  707  #endif
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21 @708  #define memset_io memset_io
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21 @709  #define memcpy_fromio memcpy_fromio
894fa235eb4ca0 arch/powerpc/include/asm/io.h Christophe Leroy       2020-11-21 @710  #define memcpy_toio memcpy_toio
68a64357d15ae4 include/asm-powerpc/io.h      Benjamin Herrenschmidt 2006-11-13  711  

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