build: Comply with -Wextra compiler flag

This reduces the risk for some bugs, for instance due to
signed/unsigned mismatches and unused variables.

5 files changed, 13 insertions, 1 deletions

diff --git a/src/tools/irm/irm.c b/src/tools/irm/irm.c
index a674c7ba..1c75a7a5 100644
--- a/src/tools/irm/irm.c
+++ b/src/tools/irm/irm.c
@@ -36,6 +36,9 @@ static void usage()
 
 static int do_help(int argc, char **argv)
 {
+        (void) argc;
+        (void) argv;
+
         usage();
         return 0;
 }
diff --git a/src/tools/irm/irm_bind.c b/src/tools/irm/irm_bind.c
index 9b37e800..a12a812b 100644
--- a/src/tools/irm/irm_bind.c
+++ b/src/tools/irm/irm_bind.c
@@ -36,6 +36,9 @@ static void usage()
 
 static int do_help(int argc, char **argv)
 {
+        (void) argc;
+        (void) argv;
+
         usage();
         return 0;
 }
diff --git a/src/tools/irm/irm_ipcp.c b/src/tools/irm/irm_ipcp.c
index 1b523feb..9d7d9532 100644
--- a/src/tools/irm/irm_ipcp.c
+++ b/src/tools/irm/irm_ipcp.c
@@ -34,6 +34,9 @@ static void usage()
 
 static int do_help(int argc, char **argv)
 {
+        (void) argc;
+        (void) argv;
+
         usage();
         return 0;
 }
diff --git a/src/tools/irm/irm_unbind.c b/src/tools/irm/irm_unbind.c
index 0290e678..7f2d0d7d 100644
--- a/src/tools/irm/irm_unbind.c
+++ b/src/tools/irm/irm_unbind.c
@@ -36,6 +36,9 @@ static void usage()
 
 static int do_help(int argc, char **argv)
 {
+        (void) argc;
+        (void) argv;
+
         usage();
         return 0;
 }
diff --git a/src/tools/irm/irm_utils.c b/src/tools/irm/irm_utils.c
index 41a1e811..151d1869 100644
--- a/src/tools/irm/irm_utils.c
+++ b/src/tools/irm/irm_utils.c
@@ -28,7 +28,7 @@
 
 int matches(const char * cmd, const char * pattern)
 {
-        int len = strlen(cmd);
+        size_t len = strlen(cmd);
 
         if (len > strlen(pattern))
                 return -1;