examples/ntb: fix build

lcore indexes can't be represented with uint8_t.
Seen on armv8 target:

examples/ntb/ntb_fwd.c: In function ‘cmd_quit_parsed’:
arm64-armv8a-linux-gcc/include/rte_lcore.h:296:8:
error: comparison is always true due to limited range of data type
[-Werror=type-limits]
       i<RTE_MAX_LCORE;      \
        ^
examples/ntb/ntb_fwd.c:164:2: note: in expansion of
macro ‘RTE_LCORE_FOREACH_SLAVE’
  RTE_LCORE_FOREACH_SLAVE(lcore_id) {
  ^~~~~~~~~~~~~~~~~~~~~~~

Fixes: 5194299d6ef5 ("examples/ntb: support more functions")

Signed-off-by: David Marchand <david.marchand@redhat.com>

diff --git a/examples/ntb/ntb_fwd.c b/examples/ntb/ntb_fwd.c
index b1ea71c..11fe207 100644 (file)
--- a/examples/ntb/ntb_fwd.c
+++ b/examples/ntb/ntb_fwd.c
@@ -158,7 +158,7 @@ cmd_quit_parsed(__attribute__((unused)) void *parsed_result,
                __attribute__((unused)) void *data)
 {
        struct ntb_fwd_lcore_conf *conf;
-       uint8_t lcore_id;
+       uint32_t lcore_id;
 
        /* Stop transmission first. */
        RTE_LCORE_FOREACH_SLAVE(lcore_id) {
@@ -612,7 +612,8 @@ assign_stream_to_lcores(void)
        struct ntb_fwd_lcore_conf *conf;
        struct ntb_fwd_stream *fs;
        uint16_t nb_streams, sm_per_lcore, sm_id, i;
-       uint8_t lcore_id, lcore_num, nb_extra;
+       uint32_t lcore_id;
+       uint8_t lcore_num, nb_extra;
 
        lcore_num = rte_lcore_count();
        /* Exclude master core */
@@ -674,7 +675,7 @@ start_pkt_fwd(void)
 {
        struct ntb_fwd_lcore_conf *conf;
        struct rte_eth_link eth_link;
-       uint8_t lcore_id;
+       uint32_t lcore_id;
        int ret, i;
 
        ret = ntb_fwd_config_setup();
@@ -767,7 +768,7 @@ cmd_stop_parsed(__attribute__((unused)) void *parsed_result,
                __attribute__((unused)) void *data)
 {
        struct ntb_fwd_lcore_conf *conf;
-       uint8_t lcore_id;
+       uint32_t lcore_id;
 
        RTE_LCORE_FOREACH_SLAVE(lcore_id) {
                conf = &fwd_lcore_conf[lcore_id];