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authorRussell King <rmk+kernel@arm.linux.org.uk>2016-01-11 17:15:58 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2016-02-08 15:47:28 +0000
commit2841029393fad551b49b6de34d44bfa9ef256441 (patch)
tree8e4d1040e2a6cba7a1a09729abad19fe7c0a50c8 /arch/arm/mm
parent9023cc8268c6ba358417d31112ed96e1feb73e56 (diff)
ARM: make virt_to_idmap() return unsigned long
Make virt_to_idmap() return an unsigned long rather than phys_addr_t. Returning phys_addr_t here makes no sense, because the definition of virt_to_idmap() is that it shall return a physical address which maps identically with the virtual address. Since virtual addresses are limited to 32-bit, identity mapped physical addresses are as well. Almost all users already had an implicit narrowing cast to unsigned long so let's make this official and part of this interface. Tested-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm')
-rw-r--r--arch/arm/mm/idmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/idmap.c b/arch/arm/mm/idmap.c
index d65909697165..bd274a05b8ff 100644
--- a/arch/arm/mm/idmap.c
+++ b/arch/arm/mm/idmap.c
@@ -15,7 +15,7 @@
* page tables.
*/
pgd_t *idmap_pgd;
-phys_addr_t (*arch_virt_to_idmap) (unsigned long x);
+unsigned long (*arch_virt_to_idmap)(unsigned long x);
#ifdef CONFIG_ARM_LPAE
static void idmap_add_pmd(pud_t *pud, unsigned long addr, unsigned long end,