diff --git a/include/net/slirp.h b/include/net/slirp.h
index 64b795cda902..0c98e463db32 100644
--- a/include/net/slirp.h
+++ b/include/net/slirp.h
@@ -36,8 +36,6 @@ void hmp_hostfwd_remove(Monitor *mon, const QDict *qdict);
 
 int net_slirp_redir(const char *redir_str);
 
-int net_slirp_parse_legacy(QemuOptsList *opts_list, const char *optarg, int *ret);
-
 int net_slirp_smb(const char *exported_dir);
 
 void hmp_info_usernet(Monitor *mon, const QDict *qdict);
diff --git a/net/net.c b/net/net.c
index 5bc0a343aedf..2b81c9319325 100644
--- a/net/net.c
+++ b/net/net.c
@@ -1565,13 +1565,6 @@ int net_init_clients(void)
 
 int net_client_parse(QemuOptsList *opts_list, const char *optarg)
 {
-#if defined(CONFIG_SLIRP)
-    int ret;
-    if (net_slirp_parse_legacy(opts_list, optarg, &ret)) {
-        return ret;
-    }
-#endif
-
     if (!qemu_opts_parse_noisily(opts_list, optarg, true)) {
         return -1;
     }
diff --git a/net/slirp.c b/net/slirp.c
index 318a26e892b2..cb8ca2312f09 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -956,37 +956,3 @@ int net_init_slirp(const Netdev *netdev, const char *name,
 
     return ret;
 }
-
-int net_slirp_parse_legacy(QemuOptsList *opts_list, const char *optarg, int *ret)
-{
-    if (strcmp(opts_list->name, "net") != 0 ||
-        strncmp(optarg, "channel,", strlen("channel,")) != 0) {
-        return 0;
-    }
-
-    error_report("The '-net channel' option is deprecated. "
-                 "Please use '-netdev user,guestfwd=...' instead.");
-
-    /* handle legacy -net channel,port:chr */
-    optarg += strlen("channel,");
-
-    if (QTAILQ_EMPTY(&slirp_stacks)) {
-        struct slirp_config_str *config;
-
-        config = g_malloc(sizeof(*config));
-        pstrcpy(config->str, sizeof(config->str), optarg);
-        config->flags = SLIRP_CFG_LEGACY;
-        config->next = slirp_configs;
-        slirp_configs = config;
-        *ret = 0;
-    } else {
-        Error *err = NULL;
-        *ret = slirp_guestfwd(QTAILQ_FIRST(&slirp_stacks), optarg, 1, &err);
-        if (*ret < 0) {
-            error_report_err(err);
-        }
-    }
-
-    return 1;
-}
-
diff --git a/qemu-doc.texi b/qemu-doc.texi
index 90bea7331d16..140659a14b17 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -2670,11 +2670,6 @@ The ``-smb /some/dir'' argument is now a synonym for setting
 the ``-netdev user,smb=/some/dir'' argument instead. The new
 syntax allows different settings to be provided per NIC.
 
-@subsection -net channel (since 2.6.0)
-
-The ``--net channel,ARGS'' argument is now a synonym for setting
-the ``-netdev user,guestfwd=ARGS'' argument instead.
-
 @subsection -net vlan (since 2.9.0)
 
 The ``-net vlan=NN'' argument is partially replaced with the