arm64: hibernate: add PUD_SECT_RDONLY

There is PMD_SECT_RDONLY that is used in pud_* function which is confusing.

Signed-off-by: Pavel Tatashin <[email protected]>
Acked-by: James Morse <[email protected]>
Signed-off-by: Will Deacon <[email protected]>

Author: soleen

arch/arm64/include/asm/pgtable-hwdef.h

@@ -110,6 +110,7 @@
 #define PUD_TABLE_BIT		(_AT(pudval_t, 1) << 1)
 #define PUD_TYPE_MASK		(_AT(pudval_t, 3) << 0)
 #define PUD_TYPE_SECT		(_AT(pudval_t, 1) << 0)
+#define PUD_SECT_RDONLY		(_AT(pudval_t, 1) << 7)		/* AP[2] */
 
 /*
  * Level 2 descriptor (PMD).

arch/arm64/kernel/hibernate.c

@@ -436,7 +436,7 @@ static int copy_pud(pgd_t *dst_pgdp, pgd_t *src_pgdp, unsigned long start,
 				return -ENOMEM;
 		} else {
 			set_pud(dst_pudp,
-				__pud(pud_val(pud) & ~PMD_SECT_RDONLY));
+				__pud(pud_val(pud) & ~PUD_SECT_RDONLY));
 		}
 	} while (dst_pudp++, src_pudp++, addr = next, addr != end);