arm64/mm: Drop [PTE|PMD]_TYPE_FAULT

This was added part of the original commit which added MMU definitions.

commit 4f04d8f00545 ("arm64: MMU definitions").

These symbols never got used as confirmed from a git log search.

git log -p arch/arm64/ | grep PTE_TYPE_FAULT
git log -p arch/arm64/ | grep PMD_TYPE_FAULT

These probably meant to identify non present entries which can now be
achieved with PMD_SECT_VALID or PTE_VALID bits. Hence just drop these
unused symbols which are not required anymore.

Cc: Will Deacon <will.deacon@arm.com>
Cc: Steve Capper <steve.capper@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index 974f011..529e83f 100644 (file)
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -126,7 +126,6 @@
  * Level 2 descriptor (PMD).
  */
 #define PMD_TYPE_MASK          (_AT(pmdval_t, 3) << 0)
-#define PMD_TYPE_FAULT         (_AT(pmdval_t, 0) << 0)
 #define PMD_TYPE_TABLE         (_AT(pmdval_t, 3) << 0)
 #define PMD_TYPE_SECT          (_AT(pmdval_t, 1) << 0)
 #define PMD_TABLE_BIT          (_AT(pmdval_t, 1) << 1)
@@ -155,7 +154,6 @@
  */
 #define PTE_VALID              (_AT(pteval_t, 1) << 0)
 #define PTE_TYPE_MASK          (_AT(pteval_t, 3) << 0)
-#define PTE_TYPE_FAULT         (_AT(pteval_t, 0) << 0)
 #define PTE_TYPE_PAGE          (_AT(pteval_t, 3) << 0)
 #define PTE_TABLE_BIT          (_AT(pteval_t, 1) << 1)
 #define PTE_USER               (_AT(pteval_t, 1) << 6)         /* AP[1] */