[akpm-mm:mm-nonmm-unstable 73/79] lib/raid6/recov_rvv.c:168:31: error: 'raid6_empty_zero_page' undeclared; did you mean 'raid6_get_zero_page'?

[akpm-mm:mm-nonmm-unstable 73/79] lib/raid6/recov_rvv.c:168:31: error: 'raid6_empty_zero_page' undeclared; did you mean 'raid6_get_zero_page'?

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
head:   4a817909eb2f8319250eb504f24337a45e43d351
commit: 44add101db9e53ebdb8f5971c9cfcb491ec2d0a3 [73/79] lib/raid6: replace custom zero page with ZERO_PAGE
config: riscv-randconfig-002-20250623 (https://download.01.org/0day-ci/archive/20250623/202506231457.Q4ZX8bx9-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250623/202506231457.Q4ZX8bx9-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/202506231457.Q4ZX8bx9-lkp@intel.com/

All errors (new ones prefixed by >>):

   lib/raid6/recov_rvv.c: In function 'raid6_2data_recov_rvv':
>> lib/raid6/recov_rvv.c:168:31: error: 'raid6_empty_zero_page' undeclared (first use in this function); did you mean 'raid6_get_zero_page'?
     168 |         ptrs[faila] = (void *)raid6_empty_zero_page;
         |                               ^~~~~~~~~~~~~~~~~~~~~
         |                               raid6_get_zero_page
   lib/raid6/recov_rvv.c:168:31: note: each undeclared identifier is reported only once for each function it appears in
   lib/raid6/recov_rvv.c: In function 'raid6_datap_recov_rvv':
   lib/raid6/recov_rvv.c:206:31: error: 'raid6_empty_zero_page' undeclared (first use in this function); did you mean 'raid6_get_zero_page'?
     206 |         ptrs[faila] = (void *)raid6_empty_zero_page;
         |                               ^~~~~~~~~~~~~~~~~~~~~
         |                               raid6_get_zero_page


vim +168 lib/raid6/recov_rvv.c

6093faaf9593fca Chunyan Zhang 2025-03-05  151  
6093faaf9593fca Chunyan Zhang 2025-03-05  152  static void raid6_2data_recov_rvv(int disks, size_t bytes, int faila,
6093faaf9593fca Chunyan Zhang 2025-03-05  153  				  int failb, void **ptrs)
6093faaf9593fca Chunyan Zhang 2025-03-05  154  {
6093faaf9593fca Chunyan Zhang 2025-03-05  155  	u8 *p, *q, *dp, *dq;
6093faaf9593fca Chunyan Zhang 2025-03-05  156  	const u8 *pbmul;	/* P multiplier table for B data */
6093faaf9593fca Chunyan Zhang 2025-03-05  157  	const u8 *qmul;		/* Q multiplier table (for both) */
6093faaf9593fca Chunyan Zhang 2025-03-05  158  
6093faaf9593fca Chunyan Zhang 2025-03-05  159  	p = (u8 *)ptrs[disks - 2];
6093faaf9593fca Chunyan Zhang 2025-03-05  160  	q = (u8 *)ptrs[disks - 1];
6093faaf9593fca Chunyan Zhang 2025-03-05  161  
6093faaf9593fca Chunyan Zhang 2025-03-05  162  	/*
6093faaf9593fca Chunyan Zhang 2025-03-05  163  	 * Compute syndrome with zero for the missing data pages
6093faaf9593fca Chunyan Zhang 2025-03-05  164  	 * Use the dead data pages as temporary storage for
6093faaf9593fca Chunyan Zhang 2025-03-05  165  	 * delta p and delta q
6093faaf9593fca Chunyan Zhang 2025-03-05  166  	 */
6093faaf9593fca Chunyan Zhang 2025-03-05  167  	dp = (u8 *)ptrs[faila];
6093faaf9593fca Chunyan Zhang 2025-03-05 @168  	ptrs[faila] = (void *)raid6_empty_zero_page;
6093faaf9593fca Chunyan Zhang 2025-03-05  169  	ptrs[disks - 2] = dp;
6093faaf9593fca Chunyan Zhang 2025-03-05  170  	dq = (u8 *)ptrs[failb];
6093faaf9593fca Chunyan Zhang 2025-03-05  171  	ptrs[failb] = (void *)raid6_empty_zero_page;
6093faaf9593fca Chunyan Zhang 2025-03-05  172  	ptrs[disks - 1] = dq;
6093faaf9593fca Chunyan Zhang 2025-03-05  173  
6093faaf9593fca Chunyan Zhang 2025-03-05  174  	raid6_call.gen_syndrome(disks, bytes, ptrs);
6093faaf9593fca Chunyan Zhang 2025-03-05  175  
6093faaf9593fca Chunyan Zhang 2025-03-05  176  	/* Restore pointer table */
6093faaf9593fca Chunyan Zhang 2025-03-05  177  	ptrs[faila]     = dp;
6093faaf9593fca Chunyan Zhang 2025-03-05  178  	ptrs[failb]     = dq;
6093faaf9593fca Chunyan Zhang 2025-03-05  179  	ptrs[disks - 2] = p;
6093faaf9593fca Chunyan Zhang 2025-03-05  180  	ptrs[disks - 1] = q;
6093faaf9593fca Chunyan Zhang 2025-03-05  181  
6093faaf9593fca Chunyan Zhang 2025-03-05  182  	/* Now, pick the proper data tables */
6093faaf9593fca Chunyan Zhang 2025-03-05  183  	pbmul = raid6_vgfmul[raid6_gfexi[failb - faila]];
6093faaf9593fca Chunyan Zhang 2025-03-05  184  	qmul  = raid6_vgfmul[raid6_gfinv[raid6_gfexp[faila] ^
6093faaf9593fca Chunyan Zhang 2025-03-05  185  					 raid6_gfexp[failb]]];
6093faaf9593fca Chunyan Zhang 2025-03-05  186  
6093faaf9593fca Chunyan Zhang 2025-03-05  187  	kernel_vector_begin();
6093faaf9593fca Chunyan Zhang 2025-03-05  188  	__raid6_2data_recov_rvv(bytes, p, q, dp, dq, pbmul, qmul);
6093faaf9593fca Chunyan Zhang 2025-03-05  189  	kernel_vector_end();
6093faaf9593fca Chunyan Zhang 2025-03-05  190  }
6093faaf9593fca Chunyan Zhang 2025-03-05  191  

:::::: The code at line 168 was first introduced by commit
:::::: 6093faaf9593fca92f96f165c95ff4b53353b1f4 raid6: Add RISC-V SIMD syndrome and recovery calculations

:::::: TO: Chunyan Zhang <zhangchunyan@iscas.ac.cn>
:::::: CC: Palmer Dabbelt <palmer@dabbelt.com>

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