tools: hv: daemon setsockopt should use options macros

HyperV daemon should use macros for option values when calling setsockopt.
Using specific numeric values instead of macros is confusing.

Signed-off-by: Tomas Hozza <thozza@redhat.com>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 908a612ac992..704a0f9a063d 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -102,6 +102,10 @@ static struct utsname uts_buf;
 #define MAX_FILE_NAME 100
 #define ENTRIES_PER_BLOCK 50
 
+#ifndef SOL_NETLINK
+#define SOL_NETLINK 270
+#endif
+
 struct kvp_record {
         char key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
         char value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
@@ -1407,7 +1411,7 @@ netlink_send(int fd, struct cn_msg *msg)
 
 int main(void)
 {
-        int fd, len, sock_opt;
+        int fd, len, nl_group;
         int error;
         struct cn_msg *message;
         struct pollfd pfd;
@@ -1452,8 +1456,8 @@ int main(void)
                 close(fd);
                 exit(EXIT_FAILURE);
         }
-        sock_opt = CN_KVP_IDX;
-        setsockopt(fd, 270, 1, &sock_opt, sizeof(sock_opt));
+        nl_group = CN_KVP_IDX;
+        setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &nl_group, sizeof(nl_group));
         /*
          * Register ourselves with the kernel.
          */