From a2568a74ee648390703dd8c8001b2ca09d0745b6 Mon Sep 17 00:00:00 2001
From: Andre Noll <maan@tuebingen.mpg.de>
Date: Wed, 21 Jun 2023 23:06:09 +0200
Subject: [PATCH] build: Remove AUDIOD_AUDIO_FORMATS_ENUM.

No code actually refers to the AUDIO_FORMAT_$FOO values of this
enumeration. Its only purpose is to define the number of supported
audio formats (as the last constant of the enum). We may as well
employ ARRAY_SIZE() for that, so kill the enum and remove the loop
from configure.ac which generates it.

The related audio_formats array, which contains the names of the
supported audio formats, is only used in audiod.c, so we can remove
the declaration from audiod.h and make it static.
---
 audiod.c     | 5 +++--
 audiod.h     | 7 -------
 configure.ac | 3 ---
 3 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/audiod.c b/audiod.c
index 7c223995..0fae454c 100644
--- a/audiod.c
+++ b/audiod.c
@@ -46,8 +46,9 @@ static struct lls_parse_result *lpr;
 #define OPT_UINT32_VAL(_name) (lls_uint32_val(0, OPT_RESULT(_name)))
 
 __printf_2_3 void (*para_log)(int, const char*, ...) = daemon_log;
-/** define the array containing all supported audio formats */
-const char *audio_formats[] = {AUDIOD_AUDIO_FORMAT_ARRAY NULL};
+/* Audio formats supported by audiod */
+static const char *audio_formats[] = {AUDIOD_AUDIO_FORMAT_ARRAY};
+#define NUM_AUDIO_FORMATS ARRAY_SIZE(audio_formats)
 
 /** Defines how audiod handles one supported audio format. */
 struct audio_format_info {
diff --git a/audiod.h b/audiod.h
index 39beda1b..d5a9da65 100644
--- a/audiod.h
+++ b/audiod.h
@@ -2,13 +2,6 @@
 
 /** \file audiod.h Symbols exported from audiod.c. */
 
-
-/** enum of audio formats supported by para_audiod */
-enum {AUDIOD_AUDIO_FORMATS_ENUM};
-
-/** array of audio format names supported by para_audiod */
-extern const char *audio_formats[];
-
 extern int audiod_status;
 
 /* defined in audiod.c */
diff --git a/configure.ac b/configure.ac
index 3b042aca..b5e71e32 100644
--- a/configure.ac
+++ b/configure.ac
@@ -574,9 +574,6 @@ if test -n "$CRYPTOLIB"; then
 	fi
 	AC_SUBST(audiod_objs, add_dot_o($audiod_objs))
 
-	enum="$(for i in $audiod_audio_formats; do printf "AUDIO_FORMAT_${i}, " | tr '[a-z]' '[A-Z]'; done)"
-	AC_DEFINE_UNQUOTED(AUDIOD_AUDIO_FORMATS_ENUM, $enum NUM_AUDIO_FORMATS,
-		enum of audio formats supported by audiod)
 	names="$(for i in $audiod_audio_formats; do printf \"$i\",' ' ; done)"
 	AC_DEFINE_UNQUOTED(AUDIOD_AUDIO_FORMAT_ARRAY, $names, array of audio formats supported by audiod)
 else
-- 
2.39.2