alsaucm: 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: d7bbc26 ("alsaucm: fix the verbose compilation warnings for latest gcc")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/alsaucm/dump.c b/alsaucm/dump.c
index 102ac4d2c4b51cd5f1bd5989802d0033d5ab9262..a5c57f21d33b3b9ed4e0fb4319557480af5135a7 100644 (file)
--- a/alsaucm/dump.c
+++ b/alsaucm/dump.c
@@ -93,7 +93,8 @@ static char *tesc(const char *s, char *buf, size_t buf_len)
 
 #define ESC(s, esc) tesc((s), (esc), sizeof(esc))
 
-static int text_verb_start(struct renderer *, const char *verb, const char *comment)
+static int text_verb_start(struct renderer *r ATTRIBUTE_UNUSED,
+                          const char *verb, const char *comment)
 {
        char buf1[128], buf2[128];
        printf("Verb.%s {\n", ESC(verb, buf1));
@@ -102,13 +103,13 @@ static int text_verb_start(struct renderer *, const char *verb, const char *comm
        return 0;
 }
 
-static int text_verb_end(struct renderer *)
+static int text_verb_end(struct renderer *r ATTRIBUTE_UNUSED)
 {
        printf("}\n");
        return 0;
 }
 
-static int text_2nd_level_begin(struct renderer *,
+static int text_2nd_level_begin(struct renderer *r ATTRIBUTE_UNUSED,
                                const char *key,
                                const char *val,
                                const char *comment)
@@ -120,19 +121,19 @@ static int text_2nd_level_begin(struct renderer *,
        return 0;
 }
 
-static int text_2nd_level_end(struct renderer *)
+static int text_2nd_level_end(struct renderer *r ATTRIBUTE_UNUSED)
 {
        printf("\t}\n");
        return 0;
 }
 
-static int text_2nd_level(struct renderer *, const char *txt)
+static int text_2nd_level(struct renderer *r ATTRIBUTE_UNUSED, const char *txt)
 {
        printf("\t\t%s", txt);
        return 0;
 }
 
-static int text_3rd_level(struct renderer *, const char *txt)
+static int text_3rd_level(struct renderer *r ATTRIBUTE_UNUSED, const char *txt)
 {
        printf("\t\t\t%s", txt);
        return 0;
@@ -266,7 +267,7 @@ static void json_block(struct renderer *r, int level, int last)
        j->block[level] = last ? 0 : 1;
 }
 
-static int json_init(struct renderer *)
+static int json_init(struct renderer *r ATTRIBUTE_UNUSED)
 {
        printf("{\n  \"Verbs\": {");
        return 0;
@@ -325,13 +326,13 @@ static int json_2nd_level_end(struct renderer *r)
        return 0;
 }
 
-static int json_2nd_level(struct renderer *, const char *txt)
+static int json_2nd_level(struct renderer *r ATTRIBUTE_UNUSED, const char *txt)
 {
        printf("          %s", txt);
        return 0;
 }
 
-static int json_3rd_level(struct renderer *, const char *txt)
+static int json_3rd_level(struct renderer *r ATTRIBUTE_UNUSED, const char *txt)
 {
        printf("            %s", txt);
        return 0;
@@ -360,7 +361,8 @@ static int json_supcon_start(struct renderer *r, const char *key)
        return 0;
 }
 
-static int json_supcon_value(struct renderer *r, const char *value, int)
+static int json_supcon_value(struct renderer *r, const char *value,
+                            int last ATTRIBUTE_UNUSED)
 {
        char buf[256];
        JESC(value, buf);