[linux-next:master 4620/4884] include/linux/io.h:92:16: error: implicit declaration of function 'ioremap_np'; did you mean 'ioremap_uc'?

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   0f5f12ac05f36f117e793656c3f560625e927f1b
commit: 17229c19e5bf0b5dc8b68dc4ca4e7012e7da4747 [4620/4884] mips: remove extraneous asm-generic/iomap.h include
config: mips-xway_defconfig (https://download.01.org/0day-ci/archive/20231205/202312052001.PB9V8WNH-lkp@intel.com/config)
compiler: mips-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231205/202312052001.PB9V8WNH-lkp@intel.com/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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312052001.PB9V8WNH-lkp@intel.com/

Note: the linux-next/master HEAD 0f5f12ac05f36f117e793656c3f560625e927f1b builds fine.
      It may have been fixed somewhere.

All error/warnings (new ones prefixed by >>):

   In file included from arch/mips/include/asm/mips-cps.h:11,
                    from arch/mips/include/asm/smp-ops.h:16,
                    from arch/mips/include/asm/smp.h:21,
                    from include/linux/smp.h:113,
                    from arch/mips/include/asm/cpu-type.h:12,
                    from arch/mips/include/asm/timex.h:19,
                    from include/linux/timex.h:67,
                    from include/linux/time32.h:13,
                    from include/linux/time.h:60,
                    from include/linux/compat.h:10,
                    from arch/mips/kernel/asm-offsets.c:12:
   include/linux/io.h: In function 'pci_remap_cfgspace':
>> include/linux/io.h:92:16: error: implicit declaration of function 'ioremap_np'; did you mean 'ioremap_uc'? [-Werror=implicit-function-declaration]
      92 |         return ioremap_np(offset, size) ?: ioremap(offset, size);
         |                ^~~~~~~~~~
         |                ioremap_uc
>> include/linux/io.h:92:42: warning: pointer/integer type mismatch in conditional expression
      92 |         return ioremap_np(offset, size) ?: ioremap(offset, size);
         |                                          ^
   cc1: some warnings being treated as errors
   make[3]: *** [scripts/Makefile.build:116: arch/mips/kernel/asm-offsets.s] Error 1
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1191: prepare0] Error 2
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:234: __sub-make] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:234: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +92 include/linux/io.h

7d3dcf26a6559fa Christoph Hellwig 2015-08-10  70  
4d312ac057da57b Arnd Bergmann     2023-05-16  71  /* architectures can override this */
4d312ac057da57b Arnd Bergmann     2023-05-16  72  pgprot_t __init early_memremap_pgprot_adjust(resource_size_t phys_addr,
4d312ac057da57b Arnd Bergmann     2023-05-16  73  					unsigned long size, pgprot_t prot);
4d312ac057da57b Arnd Bergmann     2023-05-16  74  
4d312ac057da57b Arnd Bergmann     2023-05-16  75  
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  76  #ifdef CONFIG_PCI
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  77  /*
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  78   * The PCI specifications (Rev 3.0, 3.2.5 "Transaction Ordering and
b10eb2d50911f98 Hector Martin     2021-03-25  79   * Posting") mandate non-posted configuration transactions. This default
b10eb2d50911f98 Hector Martin     2021-03-25  80   * implementation attempts to use the ioremap_np() API to provide this
b10eb2d50911f98 Hector Martin     2021-03-25  81   * on arches that support it, and falls back to ioremap() on those that
b10eb2d50911f98 Hector Martin     2021-03-25  82   * don't. Overriding this function is deprecated; arches that properly
b10eb2d50911f98 Hector Martin     2021-03-25  83   * support non-posted accesses should implement ioremap_np() instead, which
b10eb2d50911f98 Hector Martin     2021-03-25  84   * this default implementation can then use to return mappings compliant with
b10eb2d50911f98 Hector Martin     2021-03-25  85   * the PCI specification.
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  86   */
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  87  #ifndef pci_remap_cfgspace
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  88  #define pci_remap_cfgspace pci_remap_cfgspace
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  89  static inline void __iomem *pci_remap_cfgspace(phys_addr_t offset,
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  90  					       size_t size)
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  91  {
b10eb2d50911f98 Hector Martin     2021-03-25 @92  	return ioremap_np(offset, size) ?: ioremap(offset, size);
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  93  }
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  94  #endif
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  95  #endif
cf9ea8ca4a0bea7 Lorenzo Pieralisi 2017-04-19  96  

:::::: The code at line 92 was first introduced by commit
:::::: b10eb2d50911f98a8f1cacf00b1b677339593f4c asm-generic/io.h: implement pci_remap_cfgspace using ioremap_np

:::::: TO: Hector Martin <marcan@marcan.st>
:::::: CC: Hector Martin <marcan@marcan.st>

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