[davidhildenbrand:folded_pgtable 14/32] arch/csky/mm/fault.c:139:9: error: 'pgdp_k' undeclared; did you mean 'pmdp_k'?

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

tree:   https://github.com/davidhildenbrand/linux folded_pgtable
head:   0551ca68b7552b7d71f1d2882635809a573d6c79
commit: 0763dc8f9d1187b3697780a0773456af1522e2fa [14/32] csky: mm: use proper set_pXd() for folded patable in vmalloc_fault()
config: csky-allnoconfig (https://download.01.org/0day-ci/archive/20260709/202607091707.RCUR8gr5-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260709/202607091707.RCUR8gr5-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/202607091707.RCUR8gr5-lkp@intel.com/

All errors (new ones prefixed by >>):

   arch/csky/mm/fault.c: In function 'vmalloc_fault':
>> arch/csky/mm/fault.c:139:9: error: 'pgdp_k' undeclared (first use in this function); did you mean 'pmdp_k'?
     139 |         pgdp_k = (pmd_t *)(init_mm.pgd + offset);
         |         ^~~~~~
         |         pmdp_k
   arch/csky/mm/fault.c:139:9: note: each undeclared identifier is reported only once for each function it appears in


vim +139 arch/csky/mm/fault.c

   114	
   115	static inline void vmalloc_fault(struct pt_regs *regs, int code, unsigned long addr)
   116	{
   117		pmd_t *pmdp, *pmdp_k, pmd_k;
   118		pte_t *ptep_k;
   119		int offset;
   120	
   121		BUILD_BUG_ON(CONFIG_PGTABLE_LEVELS != 2);
   122	
   123		/* User mode accesses just cause a SIGSEGV */
   124		if (user_mode(regs)) {
   125			do_trap(regs, SIGSEGV, code, addr);
   126			return;
   127		}
   128	
   129		/*
   130		 * Synchronize this task's top level page-table
   131		 * with the 'reference' page table.
   132		 *
   133		 * Do _not_ use "tsk" here. We might be inside
   134		 * an interrupt in the middle of a task switch..
   135		 */
   136		offset = pgd_index(addr);
   137	
   138		pmdp = (pmd_t *)(get_pgd() + offset);
 > 139		pgdp_k = (pmd_t *)(init_mm.pgd + offset);
   140		pmd_k = pmdp_get(pmdp_k);
   141		if (!pmd_present(pmd_k)) {
   142			no_context(regs, addr);
   143			return;
   144		}
   145	
   146		set_pmd(pmdp, pmd_k);
   147	
   148		ptep_k = pte_offset_kernel(pmdp_k, addr);
   149		if (!pte_present(ptep_get(ptep_k))) {
   150			no_context(regs, addr);
   151			return;
   152		}
   153	
   154		flush_tlb_one(addr);
   155	}
   156	

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