[patch 0/1]pat: remove redundant condition check

["bibo mao" <bibo.mao@gmail.com>]

On file pat.c, if (start <= entry->start), it also means (start <
entry->end). This patch removes
redundant condition check.

Signed-off-by: bibo.mao@gmail.com
thanks
bibo,mao

------------------------------------------------------
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 2a50e0f..12cac5e 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -305,27 +305,6 @@ int reserve_memtype(u64 start, u64 end, unsigned
long req_type,
 							struct memtype, nd);
 			}
 			break;
-		} else if (start < entry->end) { /* start > entry->start */
-			err = chk_conflict(new, entry, new_type);
-			if (!err) {
-				dprintk("Overlap at 0x%Lx-0x%Lx\n",
-					entry->start, entry->end);
-				cached_entry = list_entry(entry->nd.prev,
-							struct memtype, nd);
-
-				/*
-				 * Move to right position in the linked
-				 * list to add this new entry
-				 */
-				list_for_each_entry_continue(entry,
-							&memtype_list, nd) {
-					if (start <= entry->start) {
-						where = entry->nd.prev;
-						break;
-					}
-				}
-			}
-			break;
 		}
 	}