diff mbox series

arm64/mm: Drop [PTE|PMD]_TYPE_FAULT

Message ID 1561538170-26594-1-git-send-email-anshuman.khandual@arm.com (mailing list archive)
State Mainlined
Commit d9db691d3cb5abdae59545b6b2e50f7e1cc81609
Headers show
Series arm64/mm: Drop [PTE|PMD]_TYPE_FAULT | expand

Commit Message

Anshuman Khandual June 26, 2019, 8:36 a.m. UTC
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: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Steve Capper <steve.capper@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 arch/arm64/include/asm/pgtable-hwdef.h | 2 --
 1 file changed, 2 deletions(-)

Comments

Catalin Marinas June 26, 2019, 10:21 a.m. UTC | #1
On Wed, Jun 26, 2019 at 02:06:10PM +0530, Anshuman Khandual wrote:
> 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: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Steve Capper <steve.capper@arm.com>
> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>

Thanks. Queued for 5.3.
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index 974f0114ef1b..529e83f8e607 100644
--- 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] */