sparc32: Trivial removal of sun4c references in comments.

I left some around, like the ones in the openprom headers, since
we need to think about which pieces of those datastructures and
code we can completely toss now.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index dd020b2..5d37f1f 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -235,10 +235,6 @@
 retry:
 	down_read(&mm->mmap_sem);
 
-	/*
-	 * The kernel referencing a bad kernel pointer can lock up
-	 * a sun4c machine completely, so we must attempt recovery.
-	 */
 	if(!from_user && address >= PAGE_OFFSET)
 		goto bad_area;
 
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index 21342db..753676c 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -289,9 +289,8 @@
  * check_pgt_cache
  *
  * This is called at the end of unmapping of VMA (zap_page_range),
- * to rescan the page cache for architecture specific things,
- * presumably something like sun4/sun4c PMEGs. Most architectures
- * define check_pgt_cache empty.
+ * to rescan the page cache for architecture specific things.
+ * Most architectures define check_pgt_cache empty.
  *
  * We simply copy the 2.4 implementation for now.
  */
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index d85da15..564269d 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -647,8 +647,7 @@
  * pool.  As a side effect we are putting a little too much pressure
  * on the gfp() subsystem.  This setup also makes the logic of the
  * iommu mapping code a lot easier as we can transparently handle
- * mappings on the kernel stack without any special code as we did
- * need on the sun4c.
+ * mappings on the kernel stack without any special code.
  */
 struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node)
 {