linux-kernel - [akpm-mm:mm-unstable 338/431] mm/nommu.c:579:2: error: call to undeclared function 'vma_mas_store'; ISO C99 and later do not support implicit function declarations

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Message-ID: <202205102024.jnJMagOr-lkp@intel.com>
Date:   Tue, 10 May 2022 20:52:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Liam R. Howlett" <Liam.Howlett@...cle.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: [akpm-mm:mm-unstable 338/431] mm/nommu.c:579:2: error: call to
 undeclared function 'vma_mas_store'; ISO C99 and later do not support
 implicit function declarations

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
head:   584a50635cc1deee2eeab5a17dfdcf9db7add21b
commit: a245f2ec995564195c1956813ff4fee7a894f099 [338/431] mm: remove rb tree.
config: arm-randconfig-r012-20220509 (https://download.01.org/0day-ci/archive/20220510/202205102024.jnJMagOr-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 18dd123c56754edf62c7042dcf23185c3727610f)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?id=a245f2ec995564195c1956813ff4fee7a894f099
        git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git
        git fetch --no-tags akpm-mm mm-unstable
        git checkout a245f2ec995564195c1956813ff4fee7a894f099
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> mm/nommu.c:579:2: error: call to undeclared function 'vma_mas_store'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
           vma_mas_store(vma, &mas);
           ^
   mm/nommu.c:579:2: note: did you mean 'mas_store'?
   include/linux/maple_tree.h:454:7: note: 'mas_store' declared here
   void *mas_store(struct ma_state *mas, void *entry);
         ^
>> mm/nommu.c:615:2: error: call to undeclared function 'vma_mas_remove'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
           vma_mas_remove(vma, &mas);
           ^
   2 errors generated.


vim +/vma_mas_store +579 mm/nommu.c

   547	
   548	/*
   549	 * add a VMA into a process's mm_struct in the appropriate place in the list
   550	 * and tree and add to the address space's page tree also if not an anonymous
   551	 * page
   552	 * - should be called with mm->mmap_lock held writelocked
   553	 */
   554	static void add_vma_to_mm(struct mm_struct *mm, struct vm_area_struct *vma)
   555	{
   556		struct address_space *mapping;
   557		struct vm_area_struct *prev;
   558		MA_STATE(mas, &mm->mm_mt, vma->vm_start, vma->vm_end);
   559	
   560		BUG_ON(!vma->vm_region);
   561	
   562		mm->map_count++;
   563		vma->vm_mm = mm;
   564	
   565		/* add the VMA to the mapping */
   566		if (vma->vm_file) {
   567			mapping = vma->vm_file->f_mapping;
   568	
   569			i_mmap_lock_write(mapping);
   570			flush_dcache_mmap_lock(mapping);
   571			vma_interval_tree_insert(vma, &mapping->i_mmap);
   572			flush_dcache_mmap_unlock(mapping);
   573			i_mmap_unlock_write(mapping);
   574		}
   575	
   576		prev = mas_prev(&mas, 0);
   577		mas_reset(&mas);
   578		/* add the VMA to the tree */
 > 579		vma_mas_store(vma, &mas);
   580		__vma_link_list(mm, vma, prev);
   581	}
   582	
   583	/*
   584	 * delete a VMA from its owning mm_struct and address space
   585	 */
   586	static void delete_vma_from_mm(struct vm_area_struct *vma)
   587	{
   588		int i;
   589		struct address_space *mapping;
   590		struct mm_struct *mm = vma->vm_mm;
   591		struct task_struct *curr = current;
   592		MA_STATE(mas, &vma->vm_mm->mm_mt, 0, 0);
   593	
   594		mm->map_count--;
   595		for (i = 0; i < VMACACHE_SIZE; i++) {
   596			/* if the vma is cached, invalidate the entire cache */
   597			if (curr->vmacache.vmas[i] == vma) {
   598				vmacache_invalidate(mm);
   599				break;
   600			}
   601		}
   602	
   603		/* remove the VMA from the mapping */
   604		if (vma->vm_file) {
   605			mapping = vma->vm_file->f_mapping;
   606	
   607			i_mmap_lock_write(mapping);
   608			flush_dcache_mmap_lock(mapping);
   609			vma_interval_tree_remove(vma, &mapping->i_mmap);
   610			flush_dcache_mmap_unlock(mapping);
   611			i_mmap_unlock_write(mapping);
   612		}
   613	
   614		/* remove from the MM's tree and list */
 > 615		vma_mas_remove(vma, &mas);
   616		__vma_unlink_list(mm, vma);
   617	}
   618	

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