avr32: Remove useless zeroing of swapper_pg_dir at startup

swapper_pg_dir is stored in .bss, so it must already be zeroed out
when we get there.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>

1 files changed, 3 insertions, 13 deletions

diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c
index 5ee1e407dcf7..0e77578c358d 100644
--- a/arch/avr32/mm/init.c
+++ b/arch/avr32/mm/init.c
@@ -108,19 +108,9 @@ void __init paging_init(void)
         zero_page = alloc_bootmem_low_pages_node(NODE_DATA(0),
                                                  PAGE_SIZE);
 
-        {
-                pgd_t *pg_dir;
-                int i;
-
-                pg_dir = swapper_pg_dir;
-                sysreg_write(PTBR, (unsigned long)pg_dir);
-
-                for (i = 0; i < PTRS_PER_PGD; i++)
-                        pgd_val(pg_dir[i]) = 0;
-
-                enable_mmu();
-                printk ("CPU: Paging enabled\n");
-        }
+        sysreg_write(PTBR, (unsigned long)swapper_pg_dir);
+        enable_mmu();
+        printk ("CPU: Paging enabled\n");
 
         for_each_online_node(nid) {
                 pg_data_t *pgdat = NODE_DATA(nid);