udhcp: IF_UDHCP_VERBOSE() macro - improve code readability

Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

3 files changed, 5 insertions, 11 deletions

diff --git a/networking/udhcp/common.h b/networking/udhcp/common.h
index 80d97e857..786266810 100644
--- a/networking/udhcp/common.h
+++ b/networking/udhcp/common.h
@@ -248,6 +248,7 @@ struct option_set *udhcp_find_option(struct option_set *opt_list, uint8_t code)
 /*** Logging ***/
 
 #if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 1
+# define IF_UDHCP_VERBOSE(...) __VA_ARGS__
 extern unsigned dhcp_verbose;
 # define log1(...) do { if (dhcp_verbose >= 1) bb_info_msg(__VA_ARGS__); } while (0)
 # if CONFIG_UDHCP_DEBUG >= 2
@@ -263,6 +264,7 @@ void udhcp_dump_packet(struct dhcp_packet *packet) FAST_FUNC;
 #  define log3(...) ((void)0)
 # endif
 #else
+# define IF_UDHCP_VERBOSE(...)
 # define udhcp_dump_packet(...) ((void)0)
 # define log1(...) ((void)0)
 # define log2(...) ((void)0)
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 3be09f4d7..29a6cd5a1 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -1077,11 +1077,7 @@ int udhcpc_main(int argc UNUSED_PARAM, char **argv)
 
         /* Parse command line */
         /* O,x: list; -T,-t,-A take numeric param */
-        opt_complementary = "O::x::T+:t+:A+"
-#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 1
-                ":vv"
-#endif
-                ;
+        opt_complementary = "O::x::T+:t+:A+" IF_UDHCP_VERBOSE(":vv") ;
         IF_LONG_OPTS(applet_long_options = udhcpc_longopts;)
         opt = getopt32(argv, "CV:H:h:F:i:np:qRr:s:T:t:SA:O:ox:fB"
                 USE_FOR_MMU("b")
@@ -1095,9 +1091,7 @@ int udhcpc_main(int argc UNUSED_PARAM, char **argv)
                 , &list_O
                 , &list_x
                 IF_FEATURE_UDHCP_PORT(, &str_P)
-#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 1
-                , &dhcp_verbose
-#endif
+                IF_UDHCP_VERBOSE(, &dhcp_verbose)
                 );
         if (opt & (OPT_h|OPT_H))
                 client_config.hostname = alloc_dhcp_option(DHCP_HOST_NAME, str_h, 0);
diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c
index 747472d0c..dd55e70f4 100644
--- a/networking/udhcp/dhcpd.c
+++ b/networking/udhcp/dhcpd.c
@@ -314,9 +314,7 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv)
 #endif
         opt = getopt32(argv, "fSv"
                 IF_FEATURE_UDHCP_PORT("P:", &str_P)
-#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 1
-                , &dhcp_verbose
-#endif
+                IF_UDHCP_VERBOSE(, &dhcp_verbose)
                 );
         if (!(opt & 1)) { /* no -f */
                 bb_daemonize_or_rexec(0, argv);