Fix compile errors reported by clang

For using clang as a compiler it is enough
to specify CC=clang in the make command line

Change-Id: I06f1c1d418b68768f8119de5bdc8748c51f90c02
Signed-off-by: Damjan Marion <damarion@cisco.com>

9 files changed, 10 insertions, 10 deletions

diff --git a/vnet/vnet/ip/adj_alloc.c b/vnet/vnet/ip/adj_alloc.c
index 56104207363..3ae7a199f19 100644
--- a/vnet/vnet/ip/adj_alloc.c
+++ b/vnet/vnet/ip/adj_alloc.c
@@ -51,7 +51,7 @@ aa_alloc (ip_adjacency_t * adjs, ip_adjacency_t **blockp, u32 n)
   aa_header_t * ah = aa_header (adjs);
   ip_adjacency_t * adj_block;
   u32 freelist_length;
-  int need_barrier_sync;
+  int need_barrier_sync = 0;
   
   ASSERT(os_get_cpu_number() == 0);
   ASSERT (clib_mem_is_heap_object (_vec_find(ah)));
diff --git a/vnet/vnet/lisp-cp/packets.c b/vnet/vnet/lisp-cp/packets.c
index aa246a9dc3d..28471b9a82d 100644
--- a/vnet/vnet/lisp-cp/packets.c
+++ b/vnet/vnet/lisp-cp/packets.c
@@ -225,7 +225,7 @@ pkt_push_udp_and_ip (vlib_main_t * vm, vlib_buffer_t *b, u16 sp, u16 dp,
 
   udpsum = udp_checksum (uh, clib_net_to_host_u16 (uh->length), ih,
                          ip_addr_version(sip));
-  if (udpsum == -1)
+  if (udpsum == (u16) ~0)
     {
       clib_warning("Failed UDP checksum! Discarding");
       return 0;
diff --git a/vnet/vnet/lisp-gpe/decap.c b/vnet/vnet/lisp-gpe/decap.c
index 5d88462b416..d0848ab56f4 100644
--- a/vnet/vnet/lisp-gpe/decap.c
+++ b/vnet/vnet/lisp-gpe/decap.c
@@ -104,7 +104,7 @@ lisp_gpe_input (vlib_main_t * vm, vlib_node_runtime_t * node,
           u32 bi0, bi1;
           vlib_buffer_t * b0, * b1;
           ip4_udp_lisp_gpe_header_t * iul0, * iul1;
-          u32 next0, next1, error0, error1;
+          u32 next0, next1, error0 = 0, error1 = 0;
           uword * si0, * si1;
 
           next0 = next1 = LISP_GPE_INPUT_NEXT_IP4_INPUT;
diff --git a/vnet/vnet/lisp-gpe/lisp_gpe.c b/vnet/vnet/lisp-gpe/lisp_gpe.c
index fd1e1a4608e..a1d4b6fb2ee 100644
--- a/vnet/vnet/lisp-gpe/lisp_gpe.c
+++ b/vnet/vnet/lisp-gpe/lisp_gpe.c
@@ -721,7 +721,7 @@ add_del_negative_fwd_entry (lisp_gpe_main_t * lgm,
       /* TODO insert tunnel that always sends map-request */
     case DROP:
       /* for drop fwd entries, just add route, no need to add encap tunnel */
-      adj.lookup_next_index = LGPE_IP4_LOOKUP_NEXT_DROP;
+      adj.lookup_next_index = (u16) LGPE_IP4_LOOKUP_NEXT_DROP;
 
       /* add/delete route for prefix */
       return ip4_sd_fib_add_del_route (lgm, dpref, spref, a->table_id, &adj,
diff --git a/vnet/vnet/vcgn/cnat_global.c b/vnet/vnet/vcgn/cnat_global.c
index 9ab89eeaf05..7177083466e 100644
--- a/vnet/vnet/vcgn/cnat_global.c
+++ b/vnet/vnet/vcgn/cnat_global.c
@@ -57,7 +57,7 @@ dslite_table_entry_t *dslite_table_db_ptr;
  */
 
 /* TOBE_PORTED: Following is in cnat_util.c */
-always_inline
+always_inline __attribute__((unused))
 void ipv4_decr_ttl_n_calc_csum(ipv4_header *ipv4)
 {
     u32 checksum;
diff --git a/vnet/vnet/vcgn/cnat_ipv4_udp_outside_input.c b/vnet/vnet/vcgn/cnat_ipv4_udp_outside_input.c
index f6ffd4efa7e..5a24a111f75 100644
--- a/vnet/vnet/vcgn/cnat_ipv4_udp_outside_input.c
+++ b/vnet/vnet/vcgn/cnat_ipv4_udp_outside_input.c
@@ -137,8 +137,8 @@ is_static_dest_nat_enabled(u16 vrf)
     return CNAT_NO_CONFIG;
 }*/
 
-static inline void swap_ip_dst(ipv4_header *ip, 
-                        cnat_main_db_entry_t *db, u16 vrf)
+static inline void __attribute__((unused))
+swap_ip_dst(ipv4_header *ip, cnat_main_db_entry_t *db, u16 vrf)
 {
 
     CNAT_UPDATE_L3_CHECKSUM_DECLARE
diff --git a/vnet/vnet/vcgn/cnat_logging.c b/vnet/vnet/vcgn/cnat_logging.c
index d404c590c26..50805d118ae 100644
--- a/vnet/vnet/vcgn/cnat_logging.c
+++ b/vnet/vnet/vcgn/cnat_logging.c
@@ -2668,7 +2668,7 @@ void cnat_nfv9_ds_lite_log_session_delete(
  */
 
 
-static inline
+static inline __attribute__((unused))
 void handle_vrfid_name_mapping(void)
 {
     cnat_nfv9_logging_info_t    *nfv9_logging_info = NULL;
diff --git a/vnet/vnet/vcgn/cnat_ports.c b/vnet/vnet/vcgn/cnat_ports.c
index 4437865aaee..943fb3ed38c 100644
--- a/vnet/vnet/vcgn/cnat_ports.c
+++ b/vnet/vnet/vcgn/cnat_ports.c
@@ -623,7 +623,7 @@ cnat_dynamic_port_alloc_v2 (
     for (i = 0; i < max_trys_to_find_port;  i++) {
 
     /* start_bit is only a u16.. so it can rollover and become zero */
-    if (PREDICT_FALSE((start_bit >= BITS_PER_INST) ||
+    if (PREDICT_FALSE( /* (start_bit >= BITS_PER_INST) || FIXME u16 cannot be >= 65536 */
                     (start_bit < static_port_range))) {
                     start_bit = static_port_range;
 #ifndef NO_BULK_LOGGING
diff --git a/vnet/vnet/vcgn/cnat_syslog.c b/vnet/vnet/vcgn/cnat_syslog.c
index 65fde4caf30..91758f141a9 100644
--- a/vnet/vnet/vcgn/cnat_syslog.c
+++ b/vnet/vnet/vcgn/cnat_syslog.c
@@ -361,7 +361,7 @@ byte_to_ascii_decimal_unaligned(
  * in to the space provided and 
  * returns the number of bytes copied
  */
-inline static int 
+inline static int __attribute__((unused))
 copy_ipv4_addr(unsigned char *ptr, u32 ipv4) 
 {
     unsigned char *temp = ptr;