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From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Steve Capper <steve.capper@arm.com>
Subject: [PATCH] arm64/mm: Drop [PTE|PMD]_TYPE_FAULT
Date: Wed, 26 Jun 2019 14:06:10 +0530	[thread overview]
Message-ID: <1561538170-26594-1-git-send-email-anshuman.khandual@arm.com> (raw)

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(-)

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] */
-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Steve Capper <steve.capper@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Anshuman Khandual <anshuman.khandual@arm.com>
Subject: [PATCH] arm64/mm: Drop [PTE|PMD]_TYPE_FAULT
Date: Wed, 26 Jun 2019 14:06:10 +0530	[thread overview]
Message-ID: <1561538170-26594-1-git-send-email-anshuman.khandual@arm.com> (raw)

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(-)

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] */
-- 
2.20.1


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             reply	other threads:[~2019-06-26  8:36 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-26  8:36 Anshuman Khandual [this message]
2019-06-26  8:36 ` [PATCH] arm64/mm: Drop [PTE|PMD]_TYPE_FAULT Anshuman Khandual
2019-06-26 10:21 ` Catalin Marinas
2019-06-26 10:21   ` Catalin Marinas

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