There are no platforms left which subscribe ARCH_HAS_FILTER_PGPROT. Hence
drop generic arch_filter_pgprot() and also config ARCH_HAS_FILTER_PGPROT.
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: linux-mm@xxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Reviewed-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
---
mm/Kconfig | 3 ---
mm/mmap.c | 13 ++-----------
2 files changed, 2 insertions(+), 14 deletions(-)
diff --git a/mm/Kconfig b/mm/Kconfig
index b1f7624276f8..3f7b6d7b69df 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -762,9 +762,6 @@ config ARCH_HAS_CURRENT_STACK_POINTER
register alias named "current_stack_pointer", this config can be
selected.
-config ARCH_HAS_FILTER_PGPROT
- bool
-
config ARCH_HAS_VM_GET_PAGE_PROT
bool
diff --git a/mm/mmap.c b/mm/mmap.c
index 87cb2eaf7e1a..b96e995f3733 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -107,20 +107,11 @@ pgprot_t protection_map[16] __ro_after_init = {
};
#ifndef CONFIG_ARCH_HAS_VM_GET_PAGE_PROT
-#ifndef CONFIG_ARCH_HAS_FILTER_PGPROT
-static inline pgprot_t arch_filter_pgprot(pgprot_t prot)
-{
- return prot;
-}
-#endif
-
pgprot_t vm_get_page_prot(unsigned long vm_flags)
{
- pgprot_t ret = __pgprot(pgprot_val(protection_map[vm_flags &
- (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
+ return __pgprot(pgprot_val(protection_map[vm_flags &
+ (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
pgprot_val(arch_vm_get_page_prot(vm_flags)));
-
- return arch_filter_pgprot(ret);
}
EXPORT_SYMBOL(vm_get_page_prot);
#endif /* CONFIG_ARCH_HAS_VM_GET_PAGE_PROT */
--
2.25.1
