[linux-next:master 1631/2307] drivers/remoteproc/remoteproc_internal.h:131:7: error: call to undeclared function 'ioremap_prot'; ISO C99 and later do not support implicit function declarations

[linux-next:master 1631/2307] drivers/remoteproc/remoteproc_internal.h:131:7: error: call to undeclared function 'ioremap_prot'; ISO C99 and later do not support implicit function declarations

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   be5c93fa674f0fc3c8f359c2143abce6bbb422e6
commit: 50227acbf4e5173db0f05ed95414512e7783889f [1631/2307] remoteproc: Add common wc-ioremap carveout callbacks
config: s390-randconfig-002-20260701 (https://download.01.org/0day-ci/archive/20260701/202607011210.PI7XDDb1-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 6cc609bb250b21b47fc7d394b4019101e9983597)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260701/202607011210.PI7XDDb1-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/202607011210.PI7XDDb1-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/remoteproc/remoteproc_debugfs.c:25:
>> drivers/remoteproc/remoteproc_internal.h:131:7: error: call to undeclared function 'ioremap_prot'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     131 |         va = ioremap_wc(mem->dma, mem->len);
         |              ^
   arch/s390/include/asm/io.h:36:2: note: expanded from macro 'ioremap_wc'
      36 |         ioremap_prot((addr), (size), pgprot_writecombine(PAGE_KERNEL))
         |         ^
   arch/s390/include/asm/io.h:30:22: note: expanded from macro 'ioremap_prot'
      30 | #define ioremap_prot ioremap_prot
         |                      ^
   In file included from drivers/remoteproc/remoteproc_debugfs.c:25:
>> drivers/remoteproc/remoteproc_internal.h:131:5: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
     131 |         va = ioremap_wc(mem->dma, mem->len);
         |            ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/remoteproc/remoteproc_internal.h:146:2: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     146 |         iounmap((__force __iomem void *)mem->va);
         |         ^
   arch/s390/include/asm/io.h:31:17: note: expanded from macro 'iounmap'
      31 | #define iounmap iounmap
         |                 ^
   3 errors generated.
--
   In file included from drivers/remoteproc/remoteproc_coredump.c:13:
>> drivers/remoteproc/remoteproc_internal.h:131:7: error: call to undeclared function 'ioremap_prot'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     131 |         va = ioremap_wc(mem->dma, mem->len);
         |              ^
   arch/s390/include/asm/io.h:36:2: note: expanded from macro 'ioremap_wc'
      36 |         ioremap_prot((addr), (size), pgprot_writecombine(PAGE_KERNEL))
         |         ^
   arch/s390/include/asm/io.h:30:22: note: expanded from macro 'ioremap_prot'
      30 | #define ioremap_prot ioremap_prot
         |                      ^
   In file included from drivers/remoteproc/remoteproc_coredump.c:13:
>> drivers/remoteproc/remoteproc_internal.h:131:5: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
     131 |         va = ioremap_wc(mem->dma, mem->len);
         |            ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/remoteproc/remoteproc_internal.h:146:2: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     146 |         iounmap((__force __iomem void *)mem->va);
         |         ^
   arch/s390/include/asm/io.h:31:17: note: expanded from macro 'iounmap'
      31 | #define iounmap iounmap
         |                 ^
   drivers/remoteproc/remoteproc_internal.h:146:2: note: did you mean 'vunmap'?
   arch/s390/include/asm/io.h:31:17: note: expanded from macro 'iounmap'
      31 | #define iounmap iounmap
         |                 ^
   include/linux/vmalloc.h:220:13: note: 'vunmap' declared here
     220 | extern void vunmap(const void *addr);
         |             ^
   3 errors generated.


vim +/ioremap_prot +131 drivers/remoteproc/remoteproc_internal.h

   125	
   126	static inline int rproc_mem_entry_ioremap_wc(struct rproc *rproc,
   127						     struct rproc_mem_entry *mem)
   128	{
   129		void __iomem *va;
   130	
 > 131		va = ioremap_wc(mem->dma, mem->len);
   132		if (!va) {
   133			dev_err(&rproc->dev, "Unable to map memory region: %pa+%zx\n",
   134				&mem->dma, mem->len);
   135			return -ENOMEM;
   136		}
   137	
   138		mem->va = (__force void *)va;
   139	
   140		return 0;
   141	}
   142	
   143	static inline int rproc_mem_entry_iounmap(struct rproc *rproc,
   144						  struct rproc_mem_entry *mem)
   145	{
 > 146		iounmap((__force __iomem void *)mem->va);
   147	
   148		return 0;
   149	}
   150	

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