[SPARC64]: Kill readjust_prom_translations()

Testing shows that the prom_unmap() calls do absolutely
nothing.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 92d0958..ec47de4 100644 (file)
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -619,39 +619,6 @@ static void remap_kernel(void)
        }
 }
 
-static void readjust_prom_translations(void)
-{
-       int nents, i;
-
-       nents = read_obp_translations();
-       for (i = 0; i < nents; i++) {
-               unsigned long vaddr = prom_trans[i].virt;
-               unsigned long size = prom_trans[i].size;
-
-               if (vaddr < 0xf0000000UL) {
-                       unsigned long avoid_start = (unsigned long) KERNBASE;
-                       unsigned long avoid_end = avoid_start + (4 * 1024 * 1024);
-
-                       if (bigkernel)
-                               avoid_end += (4 * 1024 * 1024);
-                       if (vaddr < avoid_start) {
-                               unsigned long top = vaddr + size;
-
-                               if (top > avoid_start)
-                                       top = avoid_start;
-                               prom_unmap(top - vaddr, vaddr);
-                       }
-                       if ((vaddr + size) > avoid_end) {
-                               unsigned long bottom = vaddr;
-
-                               if (bottom < avoid_end)
-                                       bottom = avoid_end;
-                               prom_unmap((vaddr + size) - bottom, bottom);
-                       }
-               }
-       }
-}
-
 static void inherit_prom_mappings(void)
 {
        int n;
@@ -663,8 +630,6 @@ static void inherit_prom_mappings(void)
        prom_printf("Remapping the kernel... ");
        remap_kernel();
 
-       readjust_prom_translations();
-
        prom_printf("done.\n");
 
        register_prom_callbacks();