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* + sh-mm-enable-arch_has_vm_get_page_prot-fix.patch added to mm-unstable branch
@ 2022-07-06 20:34 Andrew Morton
  0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2022-07-06 20:34 UTC (permalink / raw)
  To: mm-commits, ysato, dalias, anshuman.khandual, akpm


The patch titled
     Subject: sh: noMMU: fix vm_get_page_prot definition
has been added to the -mm mm-unstable branch.  Its filename is
     sh-mm-enable-arch_has_vm_get_page_prot-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/sh-mm-enable-arch_has_vm_get_page_prot-fix.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Anshuman Khandual <anshuman.khandual@arm.com>
Subject: sh: noMMU: fix vm_get_page_prot definition
Date: Wed, 6 Jul 2022 11:10:02 +0530

Don't define protection_map and don't use DECLARE_VM_GET_PAGE_PROT in
noMMU configs, because in that case the definition for vm_get_page_prot is
provided by the include/linux/mm.h

Link: https://lkml.kernel.org/r/20220706054002.1936820-1-anshuman.khandual@arm.com
Fixes: 03a92d45899c ("sh/mm: enable ARCH_HAS_VM_GET_PAGE_PROT")
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/sh/mm/mmap.c |   40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

--- a/arch/sh/mm/mmap.c~sh-mm-enable-arch_has_vm_get_page_prot-fix
+++ a/arch/sh/mm/mmap.c
@@ -19,6 +19,26 @@ unsigned long shm_align_mask = PAGE_SIZE
 EXPORT_SYMBOL(shm_align_mask);
 
 #ifdef CONFIG_MMU
+static const pgprot_t protection_map[16] = {
+	[VM_NONE]					= PAGE_NONE,
+	[VM_READ]					= PAGE_READONLY,
+	[VM_WRITE]					= PAGE_COPY,
+	[VM_WRITE | VM_READ]				= PAGE_COPY,
+	[VM_EXEC]					= PAGE_EXECREAD,
+	[VM_EXEC | VM_READ]				= PAGE_EXECREAD,
+	[VM_EXEC | VM_WRITE]				= PAGE_COPY,
+	[VM_EXEC | VM_WRITE | VM_READ]			= PAGE_COPY,
+	[VM_SHARED]					= PAGE_NONE,
+	[VM_SHARED | VM_READ]				= PAGE_READONLY,
+	[VM_SHARED | VM_WRITE]				= PAGE_WRITEONLY,
+	[VM_SHARED | VM_WRITE | VM_READ]		= PAGE_SHARED,
+	[VM_SHARED | VM_EXEC]				= PAGE_EXECREAD,
+	[VM_SHARED | VM_EXEC | VM_READ]			= PAGE_EXECREAD,
+	[VM_SHARED | VM_EXEC | VM_WRITE]		= PAGE_RWX,
+	[VM_SHARED | VM_EXEC | VM_WRITE | VM_READ]	= PAGE_RWX
+};
+DECLARE_VM_GET_PAGE_PROT
+
 /*
  * To avoid cache aliases, we map the shared page with same color.
  */
@@ -162,23 +182,3 @@ int valid_mmap_phys_addr_range(unsigned
 {
 	return 1;
 }
-
-static const pgprot_t protection_map[16] = {
-	[VM_NONE]					= PAGE_NONE,
-	[VM_READ]					= PAGE_READONLY,
-	[VM_WRITE]					= PAGE_COPY,
-	[VM_WRITE | VM_READ]				= PAGE_COPY,
-	[VM_EXEC]					= PAGE_EXECREAD,
-	[VM_EXEC | VM_READ]				= PAGE_EXECREAD,
-	[VM_EXEC | VM_WRITE]				= PAGE_COPY,
-	[VM_EXEC | VM_WRITE | VM_READ]			= PAGE_COPY,
-	[VM_SHARED]					= PAGE_NONE,
-	[VM_SHARED | VM_READ]				= PAGE_READONLY,
-	[VM_SHARED | VM_WRITE]				= PAGE_WRITEONLY,
-	[VM_SHARED | VM_WRITE | VM_READ]		= PAGE_SHARED,
-	[VM_SHARED | VM_EXEC]				= PAGE_EXECREAD,
-	[VM_SHARED | VM_EXEC | VM_READ]			= PAGE_EXECREAD,
-	[VM_SHARED | VM_EXEC | VM_WRITE]		= PAGE_RWX,
-	[VM_SHARED | VM_EXEC | VM_WRITE | VM_READ]	= PAGE_RWX
-};
-DECLARE_VM_GET_PAGE_PROT
_

Patches currently in -mm which might be from anshuman.khandual@arm.com are

mm-mmap-build-protect-protection_map-with-__p000.patch
mm-mmap-define-declare_vm_get_page_prot.patch
powerpc-mm-move-protection_map-inside-the-platform.patch
sparc-mm-move-protection_map-inside-the-platform.patch
arm64-mm-move-protection_map-inside-the-platform.patch
x86-mm-move-protection_map-inside-the-platform.patch
mm-mmap-build-protect-protection_map-with-arch_has_vm_get_page_prot.patch
microblaze-mm-enable-arch_has_vm_get_page_prot.patch
loongarch-mm-enable-arch_has_vm_get_page_prot.patch
openrisc-mm-enable-arch_has_vm_get_page_prot.patch
xtensa-mm-enable-arch_has_vm_get_page_prot.patch
hexagon-mm-enable-arch_has_vm_get_page_prot.patch
parisc-mm-enable-arch_has_vm_get_page_prot.patch
alpha-mm-enable-arch_has_vm_get_page_prot.patch
nios2-mm-enable-arch_has_vm_get_page_prot.patch
riscv-mm-enable-arch_has_vm_get_page_prot.patch
csky-mm-enable-arch_has_vm_get_page_prot.patch
s390-mm-enable-arch_has_vm_get_page_prot.patch
ia64-mm-enable-arch_has_vm_get_page_prot.patch
mips-mm-enable-arch_has_vm_get_page_prot.patch
m68k-mm-enable-arch_has_vm_get_page_prot.patch
arc-mm-enable-arch_has_vm_get_page_prot.patch
arm-mm-enable-arch_has_vm_get_page_prot.patch
um-mm-enable-arch_has_vm_get_page_prot.patch
sh-mm-enable-arch_has_vm_get_page_prot.patch
sh-mm-enable-arch_has_vm_get_page_prot-fix.patch
mm-mmap-drop-arch_has_vm_get_page_prot.patch


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2022-07-06 20:34 + sh-mm-enable-arch_has_vm_get_page_prot-fix.patch added to mm-unstable branch Andrew Morton

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