arch/sh/mm/cache-sh4.c:223:15: error: implicit declaration of function 'pmd_off'

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   48f506ad0b683d3e7e794efa60c5785c4fdc86fa
commit: e05c7b1f2bc4b7b28199b9a7572f73436d97317e mm: pgtable: add shortcuts for accessing kernel PMD and PTE
date:   4 years, 6 months ago
config: sh-randconfig-002-20241212 (https://download.01.org/0day-ci/archive/20241222/202412221527.oTd4Lie4-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241222/202412221527.oTd4Lie4-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/202412221527.oTd4Lie4-lkp@intel.com/

All errors (new ones prefixed by >>):

   cc1: error: arch/sh/include/mach-highlander: No such file or directory [-Werror=missing-include-dirs]
   cc1: error: arch/sh/include/mach-sdk7780: No such file or directory [-Werror=missing-include-dirs]
   cc1: error: arch/sh/include/mach-highlander: No such file or directory [-Werror=missing-include-dirs]
   cc1: error: arch/sh/include/mach-sdk7780: No such file or directory [-Werror=missing-include-dirs]
   arch/sh/mm/cache-sh4.c: In function 'flush_cache_one':
   arch/sh/mm/cache-sh4.c:98:31: error: 'cached_to_uncached' undeclared (first use in this function); did you mean 'jump_to_uncached'?
      98 |                 exec_offset = cached_to_uncached;
         |                               ^~~~~~~~~~~~~~~~~~
         |                               jump_to_uncached
   arch/sh/mm/cache-sh4.c:98:31: note: each undeclared identifier is reported only once for each function it appears in
   In file included from include/linux/init.h:5,
                    from arch/sh/mm/cache-sh4.c:13:
   arch/sh/mm/cache-sh4.c: In function 'sh4_flush_cache_mm':
   arch/sh/mm/cache-sh4.c:191:13: error: implicit declaration of function 'cpu_context'; did you mean 'put_io_context'? [-Werror=implicit-function-declaration]
     191 |         if (cpu_context(smp_processor_id(), mm) == NO_CONTEXT)
         |             ^~~~~~~~~~~
   include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
      58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
         |                                                    ^~~~
   arch/sh/mm/cache-sh4.c:191:9: note: in expansion of macro 'if'
     191 |         if (cpu_context(smp_processor_id(), mm) == NO_CONTEXT)
         |         ^~
   arch/sh/mm/cache-sh4.c: In function 'sh4_flush_cache_page':
>> arch/sh/mm/cache-sh4.c:223:15: error: implicit declaration of function 'pmd_off' [-Werror=implicit-function-declaration]
     223 |         pmd = pmd_off(vma->vm_mm, address);
         |               ^~~~~~~
   arch/sh/mm/cache-sh4.c:223:13: error: assignment to 'pmd_t *' from 'int' makes pointer from integer without a cast [-Werror=int-conversion]
     223 |         pmd = pmd_off(vma->vm_mm, address);
         |             ^
   arch/sh/mm/cache-sh4.c: At top level:
   arch/sh/mm/cache-sh4.c:373:13: error: no previous prototype for 'sh4_cache_init' [-Werror=missing-prototypes]
     373 | void __init sh4_cache_init(void)
         |             ^~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/pmd_off +223 arch/sh/mm/cache-sh4.c

   176	
   177	/*
   178	 * Note : (RPC) since the caches are physically tagged, the only point
   179	 * of flush_cache_mm for SH-4 is to get rid of aliases from the
   180	 * D-cache.  The assumption elsewhere, e.g. flush_cache_range, is that
   181	 * lines can stay resident so long as the virtual address they were
   182	 * accessed with (hence cache set) is in accord with the physical
   183	 * address (i.e. tag).  It's no different here.
   184	 *
   185	 * Caller takes mm->mmap_sem.
   186	 */
   187	static void sh4_flush_cache_mm(void *arg)
   188	{
   189		struct mm_struct *mm = arg;
   190	
 > 191		if (cpu_context(smp_processor_id(), mm) == NO_CONTEXT)
   192			return;
   193	
   194		flush_dcache_all();
   195	}
   196	
   197	/*
   198	 * Write back and invalidate I/D-caches for the page.
   199	 *
   200	 * ADDR: Virtual Address (U0 address)
   201	 * PFN: Physical page number
   202	 */
   203	static void sh4_flush_cache_page(void *args)
   204	{
   205		struct flusher_data *data = args;
   206		struct vm_area_struct *vma;
   207		struct page *page;
   208		unsigned long address, pfn, phys;
   209		int map_coherent = 0;
   210		pmd_t *pmd;
   211		pte_t *pte;
   212		void *vaddr;
   213	
   214		vma = data->vma;
   215		address = data->addr1 & PAGE_MASK;
   216		pfn = data->addr2;
   217		phys = pfn << PAGE_SHIFT;
   218		page = pfn_to_page(pfn);
   219	
   220		if (cpu_context(smp_processor_id(), vma->vm_mm) == NO_CONTEXT)
   221			return;
   222	
 > 223		pmd = pmd_off(vma->vm_mm, address);
   224		pte = pte_offset_kernel(pmd, address);
   225	
   226		/* If the page isn't present, there is nothing to do here. */
   227		if (!(pte_val(*pte) & _PAGE_PRESENT))
   228			return;
   229	
   230		if ((vma->vm_mm == current->active_mm))
   231			vaddr = NULL;
   232		else {
   233			/*
   234			 * Use kmap_coherent or kmap_atomic to do flushes for
   235			 * another ASID than the current one.
   236			 */
   237			map_coherent = (current_cpu_data.dcache.n_aliases &&
   238				test_bit(PG_dcache_clean, &page->flags) &&
   239				page_mapcount(page));
   240			if (map_coherent)
   241				vaddr = kmap_coherent(page, address);
   242			else
   243				vaddr = kmap_atomic(page);
   244	
   245			address = (unsigned long)vaddr;
   246		}
   247	
   248		flush_cache_one(CACHE_OC_ADDRESS_ARRAY |
   249				(address & shm_align_mask), phys);
   250	
   251		if (vma->vm_flags & VM_EXEC)
   252			flush_icache_all();
   253	
   254		if (vaddr) {
   255			if (map_coherent)
   256				kunmap_coherent(vaddr);
   257			else
   258				kunmap_atomic(vaddr);
   259		}
   260	}
   261	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki