The branch main has been updated by christos:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=84282785cc497c3fb798502899f880e15d063233

commit 84282785cc497c3fb798502899f880e15d063233
Author:     Christos Margiolis <[email protected]>
AuthorDate: 2025-11-11 12:05:47 +0000
Commit:     Christos Margiolis <[email protected]>
CommitDate: 2025-11-11 12:05:47 +0000

    sound: Retire MAXFEEDERS and feedercnt
    
    Apart from the fact that it's unrealistic to reach MAXFEEDERS (256),
    since sound(4) comes with maximum 7 feeders (including feeder_root),
    there is also no reason to cap it.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Reviewed by:    markj
    Differential Revision:  https://reviews.freebsd.org/D53549
---
 sys/dev/sound/pcm/feeder.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/sys/dev/sound/pcm/feeder.c b/sys/dev/sound/pcm/feeder.c
index 3f6b35c9197d..2e19577bfde3 100644
--- a/sys/dev/sound/pcm/feeder.c
+++ b/sys/dev/sound/pcm/feeder.c
@@ -42,15 +42,12 @@
 
 static MALLOC_DEFINE(M_FEEDER, "feeder", "pcm feeder");
 
-#define MAXFEEDERS     256
-
 struct feedertab_entry {
        SLIST_ENTRY(feedertab_entry) link;
        struct feeder_class *feederclass;
        struct pcm_feederdesc *desc;
 };
 static SLIST_HEAD(, feedertab_entry) feedertab;
-static int feedercnt = 0;
 
 /*****************************************************************************/
 
@@ -60,7 +57,6 @@ feeder_register_root(void *p)
        struct feeder_class *fc = p;
        struct feedertab_entry *fte;
 
-       MPASS(feedercnt == 0);
        KASSERT(fc->desc == NULL, ("first feeder not root: %s", fc->name));
 
        SLIST_INIT(&feedertab);
@@ -68,7 +64,6 @@ feeder_register_root(void *p)
        fte->feederclass = fc;
        fte->desc = NULL;
        SLIST_INSERT_HEAD(&feedertab, fte, link);
-       feedercnt++;
 }
 
 void
@@ -85,18 +80,13 @@ feeder_register(void *p)
         * translations being unavailable
         */
        i = 0;
-       while ((feedercnt < MAXFEEDERS) && (fc->desc[i].type > 0)) {
+       while (fc->desc[i].type > 0) {
                fte = malloc(sizeof(*fte), M_FEEDER, M_WAITOK | M_ZERO);
                fte->feederclass = fc;
                fte->desc = &fc->desc[i];
                SLIST_INSERT_HEAD(&feedertab, fte, link);
                i++;
        }
-       feedercnt++;
-       if (feedercnt >= MAXFEEDERS) {
-               printf("MAXFEEDERS (%d >= %d) exceeded\n",
-                   feedercnt, MAXFEEDERS);
-       }
 }
 
 static void

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