Revert "Work around a GCC bug that causes inet_checksum() to give wrong results."

This reverts commit 7c73cb3ace6659df58ec2382b8d47bb521dad886.

diff --git a/src/route.c b/src/route.c
index fc08f5f..2e8d94a 100644 (file)
--- a/src/route.c
+++ b/src/route.c
@@ -59,7 +59,6 @@ static const size_t opt_size = sizeof(struct nd_opt_hdr);
 #define MAX(a, b) ((a) > (b) ? (a) : (b))
 #endif
 
-volatile int dummy;
 static timeout_t age_subnets_timeout;
 
 /* RFC 1071 */
@@ -81,11 +80,6 @@ static uint16_t inet_checksum(void *data, int len, uint16_t prevsum) {
                checksum = (checksum & 0xFFFF) + (checksum >> 16);
        }
 
-       // Work around a compiler optimization bug.
-       if(checksum) {
-               dummy = 1;
-       }
-
        return ~checksum;
 }