[ARM] Simplify setup_mm_for_reboot()

No point checking what CPU architecture level we have each time
within the loop, so precompute the base PMD flags outside the
loop.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c
index 8cb024aa88bdd54019770978435135f51e73f001..3a81944d74ba7530429bce052061dab7f7180707 100644 (file)
--- a/arch/arm/mm/mm-armv.c
+++ b/arch/arm/mm/mm-armv.c
@@ -577,23 +577,23 @@ static void __init create_mapping(struct map_desc *md)
  */
 void setup_mm_for_reboot(char mode)
 {
-       unsigned long pmdval;
+       unsigned long base_pmdval;
        pgd_t *pgd;
-       pmd_t *pmd;
        int i;
-       int cpu_arch = cpu_architecture();
 
        if (current->mm && current->mm->pgd)
                pgd = current->mm->pgd;
        else
                pgd = init_mm.pgd;
 
-       for (i = 0; i < FIRST_USER_PGD_NR + USER_PTRS_PER_PGD; i++) {
-               pmdval = (i << PGDIR_SHIFT) |
-                        PMD_SECT_AP_WRITE | PMD_SECT_AP_READ |
-                        PMD_TYPE_SECT;
-               if (cpu_arch <= CPU_ARCH_ARMv5TEJ)
-                       pmdval |= PMD_BIT4;
+       base_pmdval = PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | PMD_TYPE_SECT;
+       if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ)
+               base_pmdval |= PMD_BIT4;
+
+       for (i = 0; i < FIRST_USER_PGD_NR + USER_PTRS_PER_PGD; i++, pgd++) {
+               unsigned long pmdval = (i << PGDIR_SHIFT) | base_pmdval;
+               pmd_t *pmd;
+
                pmd = pmd_off(pgd, i << PGDIR_SHIFT);
                pmd[0] = __pmd(pmdval);
                pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1)));