alsaloop: use ATTRIBUTE_UNUSED instead remove argument name

We need to support older compilers than GCC 11.

Link: https://github.com/alsa-project/alsa-utils/issues/233
Fixes: d609a58 ("alsaloop: fix the verbose compilation warnings for latest gcc")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/alsaloop/alsaloop.c b/alsaloop/alsaloop.c
index b10733e0b3008a642459558d92601f1ba6f72c1c..51fb64626a9095b3063b1aa5ee6598c4213ea2ff 100644 (file)
--- a/alsaloop/alsaloop.c
+++ b/alsaloop/alsaloop.c
@@ -821,7 +821,7 @@ static void send_to_all(int sig)
        }
 }
 
-static void signal_handler(int)
+static void signal_handler(int sig ATTRIBUTE_UNUSED)
 {
        quit = 1;
        send_to_all(SIGUSR2);

diff --git a/alsaloop/pcmjob.c b/alsaloop/pcmjob.c
index be7197122ed9485e128888b4e1a8ce30333d47ea..ffb439b45e66df4e843958d5acbdf66fecd0af27 100644 (file)
--- a/alsaloop/pcmjob.c
+++ b/alsaloop/pcmjob.c
@@ -625,7 +625,7 @@ static void buf_add_src(struct loopback *loop)
        }
 }
 #else
-static void buf_add_src(struct loopback *)
+static void buf_add_src(struct loopback *loop ATTRIBUTE_UNUSED)
 {
 }
 #endif
@@ -1794,7 +1794,7 @@ static int ctl_event_check(snd_ctl_elem_value_t *val, snd_ctl_event_t *ev)
 }
 
 static int handle_ctl_events(struct loopback_handle *lhandle,
-                            unsigned short)
+                            unsigned short events ATTRIBUTE_UNUSED)
 {
        struct loopback *loop = lhandle->loopback;
        snd_ctl_event_t *ev;