From: Viktor Szakats <commit@vsz.me>
Date: Wed, 14 Jan 2026 02:46:19 +0000 (+0100)
Subject: build: drop redundant unused variable suppressions
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59a5fd8518f6136494d04f694e16cd8879f03730;p=thirdparty%2Fcurl.git

build: drop redundant unused variable suppressions

Also:
- digest_sspi: merge some `ifdef`s.

Closes #20310
---

diff --git a/lib/altsvc.c b/lib/altsvc.c
index cf6f754a04..64bfec420b 100644
--- a/lib/altsvc.c
+++ b/lib/altsvc.c
@@ -467,9 +467,6 @@ CURLcode Curl_altsvc_parse(struct Curl_easy *data,
   unsigned short dstport = srcport; /* the same by default */
   size_t entries = 0;
   struct Curl_str alpn;
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
 
   DEBUGASSERT(asi);
 
diff --git a/lib/asyn-thrdd.c b/lib/asyn-thrdd.c
index 690e8139bd..87dddfa261 100644
--- a/lib/asyn-thrdd.c
+++ b/lib/asyn-thrdd.c
@@ -116,7 +116,6 @@ static void addr_ctx_unlink(struct async_thrdd_addr_ctx **paddr_ctx,
   struct async_thrdd_addr_ctx *addr_ctx = *paddr_ctx;
   bool destroy;
 
-  (void)data;
   if(!addr_ctx)
     return;
 
diff --git a/lib/cf-h2-proxy.c b/lib/cf-h2-proxy.c
index 4f101a05fe..96fc7cd8f8 100644
--- a/lib/cf-h2-proxy.c
+++ b/lib/cf-h2-proxy.c
@@ -379,7 +379,6 @@ static CURLcode proxy_h2_nw_out_flush(struct Curl_cfilter *cf,
   size_t nwritten;
   CURLcode result;
 
-  (void)data;
   if(Curl_bufq_is_empty(&ctx->outbufq))
     return CURLE_OK;
 
@@ -716,7 +715,6 @@ static int proxy_h2_on_header(nghttp2_session *session,
   CURLcode result;
 
   (void)flags;
-  (void)data;
   (void)session;
   DEBUGASSERT(stream_id); /* should never be a zero stream ID here */
   if(stream_id != ctx->tunnel.stream_id) {
@@ -785,7 +783,6 @@ static ssize_t tunnel_send_callback(nghttp2_session *session,
   size_t nread;
 
   (void)source;
-  (void)data;
   (void)ctx;
 
   if(!stream_id)
@@ -849,7 +846,6 @@ static int proxy_h2_on_stream_close(nghttp2_session *session,
   struct Curl_easy *data = CF_DATA_CURRENT(cf);
 
   (void)session;
-  (void)data;
 
   if(stream_id != ctx->tunnel.stream_id)
     return 0;
diff --git a/lib/cf-haproxy.c b/lib/cf-haproxy.c
index 6c9bfdd137..782253e83e 100644
--- a/lib/cf-haproxy.c
+++ b/lib/cf-haproxy.c
@@ -156,7 +156,6 @@ out:
 static void cf_haproxy_destroy(struct Curl_cfilter *cf,
                                struct Curl_easy *data)
 {
-  (void)data;
   CURL_TRC_CF(data, cf, "destroy");
   cf_haproxy_ctx_free(cf->ctx);
 }
diff --git a/lib/cf-https-connect.c b/lib/cf-https-connect.c
index d2a08d124f..832b2a95b4 100644
--- a/lib/cf-https-connect.c
+++ b/lib/cf-https-connect.c
@@ -546,7 +546,6 @@ static void cf_hc_destroy(struct Curl_cfilter *cf, struct Curl_easy *data)
 {
   struct cf_hc_ctx *ctx = cf->ctx;
 
-  (void)data;
   CURL_TRC_CF(data, cf, "destroy");
   cf_hc_reset(cf, data);
   Curl_safefree(ctx);
diff --git a/lib/cf-socket.c b/lib/cf-socket.c
index ce728f5b3e..88c5b810c9 100644
--- a/lib/cf-socket.c
+++ b/lib/cf-socket.c
@@ -1077,7 +1077,6 @@ static CURLcode cf_socket_open(struct Curl_cfilter *cf,
   CURLcode result = CURLE_COULDNT_CONNECT;
   bool is_tcp;
 
-  (void)data;
   DEBUGASSERT(ctx->sock == CURL_SOCKET_BAD);
   ctx->started_at = *Curl_pgrs_now(data);
 #ifdef SOCK_NONBLOCK
@@ -1277,7 +1276,6 @@ static CURLcode cf_tcp_connect(struct Curl_cfilter *cf,
   CURLcode result = CURLE_COULDNT_CONNECT;
   int rc = 0;
 
-  (void)data;
   if(cf->connected) {
     *done = TRUE;
     return CURLE_OK;
@@ -1627,7 +1625,7 @@ static bool cf_socket_conn_is_alive(struct Curl_cfilter *cf,
   int r;
 
   *input_pending = FALSE;
-  (void)data;
+
   if(!ctx || ctx->sock == CURL_SOCKET_BAD)
     return FALSE;
 
diff --git a/lib/cfilters.c b/lib/cfilters.c
index b91d30c204..8a6a163067 100644
--- a/lib/cfilters.c
+++ b/lib/cfilters.c
@@ -339,7 +339,6 @@ void Curl_conn_cf_add(struct Curl_easy *data,
                       int index,
                       struct Curl_cfilter *cf)
 {
-  (void)data;
   DEBUGASSERT(conn);
   DEBUGASSERT(!cf->conn);
   DEBUGASSERT(!cf->next);
diff --git a/lib/conncache.c b/lib/conncache.c
index 1a3dba7f63..f19d061ca3 100644
--- a/lib/conncache.c
+++ b/lib/conncache.c
@@ -808,7 +808,7 @@ static int cpool_do_conn(struct Curl_easy *data,
                          struct connectdata *conn, void *param)
 {
   struct cpool_do_conn_ctx *dctx = param;
-  (void)data;
+
   if(conn->connection_id == dctx->id) {
     dctx->cb(conn, data, dctx->cbdata);
     return 1;
@@ -858,7 +858,6 @@ static int cpool_mark_stale(struct Curl_easy *data,
 static int cpool_reap_no_reuse(struct Curl_easy *data,
                                struct connectdata *conn, void *param)
 {
-  (void)data;
   (void)param;
   if(!CONN_INUSE(conn) && conn->bits.no_reuse) {
     Curl_conn_terminate(data, conn, FALSE);
diff --git a/lib/connect.c b/lib/connect.c
index 6e178345f4..681ead7227 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -465,7 +465,6 @@ static void cf_setup_destroy(struct Curl_cfilter *cf, struct Curl_easy *data)
 {
   struct cf_setup_ctx *ctx = cf->ctx;
 
-  (void)data;
   CURL_TRC_CF(data, cf, "destroy");
   Curl_safefree(ctx);
 }
diff --git a/lib/curl_gssapi.c b/lib/curl_gssapi.c
index 8c82f778cd..352a5ad1e5 100644
--- a/lib/curl_gssapi.c
+++ b/lib/curl_gssapi.c
@@ -437,10 +437,6 @@ void Curl_gss_log_error(struct Curl_easy *data, const char *prefix,
   display_gss_error(minor, GSS_C_MECH_CODE, buf, len);
 
   infof(data, "%s%s", prefix, buf);
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-  (void)prefix;
-#endif
 }
 
 #if defined(__GNUC__) && defined(__APPLE__)
diff --git a/lib/hostip4.c b/lib/hostip4.c
index 422e0b222a..0d5942362c 100644
--- a/lib/hostip4.c
+++ b/lib/hostip4.c
@@ -74,9 +74,6 @@ struct Curl_addrinfo *Curl_sync_getaddrinfo(struct Curl_easy *data,
   struct Curl_addrinfo *ai = NULL;
 
   (void)ip_version;
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
 
   ai = Curl_ipv4_resolve_r(hostname, port);
   if(!ai)
diff --git a/lib/http2.c b/lib/http2.c
index a8b8d5c52f..f1c9fb59d6 100644
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -745,7 +745,6 @@ static CURLcode nw_out_flush(struct Curl_cfilter *cf,
   size_t nwritten;
   CURLcode result;
 
-  (void)data;
   if(Curl_bufq_is_empty(&ctx->outbufq))
     return CURLE_OK;
 
diff --git a/lib/http_proxy.c b/lib/http_proxy.c
index c5b2f3e871..1e30d21d96 100644
--- a/lib/http_proxy.c
+++ b/lib/http_proxy.c
@@ -380,7 +380,6 @@ static void http_proxy_cf_destroy(struct Curl_cfilter *cf,
 {
   struct cf_proxy_ctx *ctx = cf->ctx;
 
-  (void)data;
   CURL_TRC_CF(data, cf, "destroy");
   curlx_free(ctx);
 }
diff --git a/lib/imap.c b/lib/imap.c
index 7027c8ef05..4c9d14232a 100644
--- a/lib/imap.c
+++ b/lib/imap.c
@@ -1494,7 +1494,6 @@ static CURLcode imap_pp_statemachine(struct Curl_easy *data,
   struct pingpong *pp;
   size_t nread = 0;
 
-  (void)data;
   if(!imapc || !imap)
     return CURLE_FAILED_INIT;
   pp = &imapc->pp;
@@ -2161,7 +2160,6 @@ static CURLcode imap_disconnect(struct Curl_easy *data,
 {
   struct imap_conn *imapc = Curl_conn_meta_get(conn, CURL_META_IMAP_CONN);
 
-  (void)data;
   if(imapc) {
     /* We cannot send quit unconditionally. If this connection is stale or
        bad in any way (pingpong has pending data to send),
diff --git a/lib/rtsp.c b/lib/rtsp.c
index 8712a456cc..09b01f176b 100644
--- a/lib/rtsp.c
+++ b/lib/rtsp.c
@@ -161,7 +161,6 @@ static uint32_t rtsp_conncheck(struct Curl_easy *data,
                                uint32_t checks_to_perform)
 {
   unsigned int ret_val = CONNRESULT_NONE;
-  (void)data;
 
   if(checks_to_perform & CONNCHECK_ISDEAD) {
     bool input_pending;
diff --git a/lib/select.c b/lib/select.c
index cae5085fdc..a3d77145ce 100644
--- a/lib/select.c
+++ b/lib/select.c
@@ -568,7 +568,6 @@ CURLcode Curl_pollset_change(struct Curl_easy *data,
   DEBUGASSERT(ps->init == CURL_EASY_POLLSET_MAGIC);
 #endif
 
-  (void)data;
   DEBUGASSERT(VALID_SOCK(sock));
   if(!VALID_SOCK(sock))
     return CURLE_BAD_FUNCTION_ARGUMENT;
diff --git a/lib/sendf.c b/lib/sendf.c
index 2d66ed58dd..680cd11356 100644
--- a/lib/sendf.c
+++ b/lib/sendf.c
@@ -625,7 +625,6 @@ struct cr_in_ctx {
 static CURLcode cr_in_init(struct Curl_easy *data, struct Curl_creader *reader)
 {
   struct cr_in_ctx *ctx = reader->ctx;
-  (void)data;
   ctx->read_cb = data->state.fread_func;
   ctx->cb_user_data = data->state.in;
   ctx->total_len = -1;
@@ -1294,7 +1293,6 @@ static CURLcode cr_buf_read(struct Curl_easy *data,
   struct cr_buf_ctx *ctx = reader->ctx;
   size_t nread = ctx->blen - ctx->index;
 
-  (void)data;
   if(!nread || !ctx->buf) {
     *pnread = 0;
     *peos = TRUE;
diff --git a/lib/smtp.c b/lib/smtp.c
index 431113550d..5c376dfce9 100644
--- a/lib/smtp.c
+++ b/lib/smtp.c
@@ -1904,7 +1904,6 @@ static CURLcode smtp_disconnect(struct Curl_easy *data,
 {
   struct smtp_conn *smtpc = Curl_conn_meta_get(conn, CURL_META_SMTP_CONN);
 
-  (void)data;
   if(!smtpc)
     return CURLE_FAILED_INIT;
 
diff --git a/lib/url.c b/lib/url.c
index 47df6b3913..c7e77b0b42 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -2053,9 +2053,6 @@ static char *detect_proxy(struct Curl_easy *data,
    */
   char proxy_env[20];
   const char *envp = proxy_env;
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
 
   curl_msnprintf(proxy_env, sizeof(proxy_env), "%s_proxy",
                  conn->handler->scheme);
@@ -2832,10 +2829,6 @@ static CURLcode parse_connect_to_host_port(struct Curl_easy *data,
   int port = -1;
   CURLcode result = CURLE_OK;
 
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
-
   *hostname_result = NULL;
   *port_result = -1;
 
diff --git a/lib/vauth/digest_sspi.c b/lib/vauth/digest_sspi.c
index 615b4bc827..6958a71d1e 100644
--- a/lib/vauth/digest_sspi.c
+++ b/lib/vauth/digest_sspi.c
@@ -193,10 +193,6 @@ CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data,
      status == SEC_I_COMPLETE_AND_CONTINUE)
     Curl_pSecFn->CompleteAuthToken(&credentials, &resp_desc);
   else if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) {
-#ifndef CURL_DISABLE_VERBOSE_STRINGS
-    char buffer[STRERROR_LEN];
-#endif
-
     Curl_pSecFn->FreeCredentialsHandle(&credentials);
     Curl_sspi_free_identity(p_identity);
     curlx_free(spn);
@@ -206,8 +202,11 @@ CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data,
       return CURLE_OUT_OF_MEMORY;
 
 #ifndef CURL_DISABLE_VERBOSE_STRINGS
-    infof(data, "schannel: InitializeSecurityContext failed: %s",
-          Curl_sspi_strerror(status, buffer, sizeof(buffer)));
+    {
+      char buffer[STRERROR_LEN];
+      infof(data, "schannel: InitializeSecurityContext failed: %s",
+            Curl_sspi_strerror(status, buffer, sizeof(buffer)));
+    }
 #endif
 
     return CURLE_AUTH_ERROR;
@@ -401,8 +400,6 @@ CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data,
   SecBufferDesc chlg_desc;
   SECURITY_STATUS status;
 
-  (void)data;
-
   /* Query the security package for DigestSSP */
   status =
     Curl_pSecFn->QuerySecurityPackageInfo(
@@ -594,10 +591,6 @@ CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data,
        status == SEC_I_COMPLETE_AND_CONTINUE)
       Curl_pSecFn->CompleteAuthToken(&credentials, &resp_desc);
     else if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) {
-#ifndef CURL_DISABLE_VERBOSE_STRINGS
-      char buffer[STRERROR_LEN];
-#endif
-
       Curl_pSecFn->FreeCredentialsHandle(&credentials);
 
       Curl_sspi_free_identity(p_identity);
@@ -609,8 +602,11 @@ CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data,
         return CURLE_OUT_OF_MEMORY;
 
 #ifndef CURL_DISABLE_VERBOSE_STRINGS
-      infof(data, "schannel: InitializeSecurityContext failed: %s",
-            Curl_sspi_strerror(status, buffer, sizeof(buffer)));
+      {
+        char buffer[STRERROR_LEN];
+        infof(data, "schannel: InitializeSecurityContext failed: %s",
+              Curl_sspi_strerror(status, buffer, sizeof(buffer)));
+      }
 #endif
 
       return CURLE_AUTH_ERROR;
diff --git a/lib/vauth/krb5_sspi.c b/lib/vauth/krb5_sspi.c
index 8bf2091a54..7aad4badfa 100644
--- a/lib/vauth/krb5_sspi.c
+++ b/lib/vauth/krb5_sspi.c
@@ -259,10 +259,6 @@ CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data,
   SecPkgContext_Sizes sizes;
   SECURITY_STATUS status;
 
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
-
   /* Ensure we have a valid challenge message */
   DEBUGASSERT(chlg);
   if(!Curl_bufref_len(chlg)) {
diff --git a/lib/vauth/ntlm.c b/lib/vauth/ntlm.c
index 54755733e9..fe45867b2f 100644
--- a/lib/vauth/ntlm.c
+++ b/lib/vauth/ntlm.c
@@ -254,10 +254,6 @@ static CURLcode ntlm_decode_type2_target(struct Curl_easy *data,
   const unsigned char *type2 = Curl_bufref_uptr(type2ref);
   size_t type2len = Curl_bufref_len(type2ref);
 
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
-
   if(type2len >= 48) {
     target_info_len = Curl_read16_le(&type2[40]);
     target_info_offset = Curl_read32_le(&type2[44]);
@@ -354,10 +350,6 @@ CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data,
   const unsigned char *type2 = Curl_bufref_uptr(type2ref);
   size_t type2len = Curl_bufref_len(type2ref);
 
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
-
   ntlm->flags = 0;
 
   if((type2len < 32) ||
diff --git a/lib/vauth/ntlm_sspi.c b/lib/vauth/ntlm_sspi.c
index 3197dd0a2e..9040df1b88 100644
--- a/lib/vauth/ntlm_sspi.c
+++ b/lib/vauth/ntlm_sspi.c
@@ -194,10 +194,6 @@ CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data,
                                              const struct bufref *type2,
                                              struct ntlmdata *ntlm)
 {
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
-
   /* Ensure we have a valid type-2 message */
   if(!Curl_bufref_len(type2)) {
     infof(data, "NTLM handshake failure (empty type-2 message)");
@@ -244,9 +240,6 @@ CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data,
   SECURITY_STATUS status;
   unsigned long attrs;
 
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
   (void)passwdp;
   (void)userp;
 
diff --git a/lib/vauth/spnego_sspi.c b/lib/vauth/spnego_sspi.c
index 4211763166..12bdc3afd7 100644
--- a/lib/vauth/spnego_sspi.c
+++ b/lib/vauth/spnego_sspi.c
@@ -95,10 +95,6 @@ CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data,
   SecBufferDesc resp_desc;
   unsigned long attrs;
 
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
-
   if(nego->context && nego->status == SEC_E_OK) {
     /* We finished successfully our part of authentication, but server
      * rejected it (since we are again here). Exit with an error since we
diff --git a/lib/vquic/curl_ngtcp2.c b/lib/vquic/curl_ngtcp2.c
index 5c615616c2..87db325770 100644
--- a/lib/vquic/curl_ngtcp2.c
+++ b/lib/vquic/curl_ngtcp2.c
@@ -614,7 +614,6 @@ static int cb_recv_stream_data(ngtcp2_conn *tconn, uint32_t flags,
   int fin = (flags & NGTCP2_STREAM_DATA_FLAG_FIN) ? 1 : 0;
   struct Curl_easy *data = stream_user_data;
   (void)offset;
-  (void)data;
 
   nconsumed =
     nghttp3_conn_read_stream(ctx->h3conn, stream_id, buf, buflen, fin);
@@ -705,7 +704,6 @@ static int cb_stream_reset(ngtcp2_conn *tconn, int64_t stream_id,
   (void)tconn;
   (void)final_size;
   (void)app_error_code;
-  (void)data;
 
   rv = nghttp3_conn_shutdown_stream_read(ctx->h3conn, stream_id);
   CURL_TRC_CF(data, cf, "[%" PRId64 "] reset -> %d", stream_id, rv);
@@ -1263,7 +1261,6 @@ static int cb_h3_reset_stream(nghttp3_conn *conn, int64_t stream_id,
   struct Curl_easy *data = stream_user_data;
   int rv;
   (void)conn;
-  (void)data;
 
   rv = ngtcp2_conn_shutdown_stream_write(ctx->qconn, 0, stream_id,
                                          app_error_code);
@@ -2907,7 +2904,6 @@ CURLcode Curl_cf_ngtcp2_create(struct Curl_cfilter **pcf,
   struct Curl_cfilter *cf = NULL;
   CURLcode result;
 
-  (void)data;
   ctx = curlx_calloc(1, sizeof(*ctx));
   if(!ctx) {
     result = CURLE_OUT_OF_MEMORY;
diff --git a/lib/vquic/curl_osslq.c b/lib/vquic/curl_osslq.c
index bcf9ab9549..958b9a4a74 100644
--- a/lib/vquic/curl_osslq.c
+++ b/lib/vquic/curl_osslq.c
@@ -2399,7 +2399,6 @@ CURLcode Curl_cf_osslq_create(struct Curl_cfilter **pcf,
   struct Curl_cfilter *cf = NULL;
   CURLcode result;
 
-  (void)data;
   ctx = curlx_calloc(1, sizeof(*ctx));
   if(!ctx) {
     result = CURLE_OUT_OF_MEMORY;
diff --git a/lib/vquic/curl_quiche.c b/lib/vquic/curl_quiche.c
index 01f1bf5edd..f179360439 100644
--- a/lib/vquic/curl_quiche.c
+++ b/lib/vquic/curl_quiche.c
@@ -1629,8 +1629,6 @@ CURLcode Curl_cf_quiche_create(struct Curl_cfilter **pcf,
   struct Curl_cfilter *cf = NULL;
   CURLcode result;
 
-  (void)data;
-  (void)conn;
   ctx = curlx_calloc(1, sizeof(*ctx));
   if(!ctx) {
     result = CURLE_OUT_OF_MEMORY;
diff --git a/lib/vquic/vquic.c b/lib/vquic/vquic.c
index 33ba12f476..96a3bcb594 100644
--- a/lib/vquic/vquic.c
+++ b/lib/vquic/vquic.c
@@ -854,8 +854,8 @@ CURLcode Curl_conn_may_http3(struct Curl_easy *data,
                              const struct connectdata *conn,
                              unsigned char transport)
 {
-  (void)conn;
   (void)data;
+  (void)conn;
   (void)transport;
   DEBUGF(infof(data, "QUIC is not supported in this build"));
   return CURLE_NOT_BUILT_IN;
diff --git a/lib/vtls/gtls.c b/lib/vtls/gtls.c
index 934273e0ee..ae9e0e82b7 100644
--- a/lib/vtls/gtls.c
+++ b/lib/vtls/gtls.c
@@ -2069,7 +2069,6 @@ static CURLcode gtls_send(struct Curl_cfilter *cf,
   ssize_t nwritten;
   size_t remain = blen;
 
-  (void)data;
   DEBUGASSERT(backend);
   *pnwritten = 0;
 
@@ -2186,7 +2185,6 @@ static void gtls_close(struct Curl_cfilter *cf,
   struct gtls_ssl_backend_data *backend =
     (struct gtls_ssl_backend_data *)connssl->backend;
 
-  (void)data;
   DEBUGASSERT(backend);
   CURL_TRC_CF(data, cf, "close");
   if(backend->gtls.session) {
@@ -2215,7 +2213,6 @@ static CURLcode gtls_recv(struct Curl_cfilter *cf,
   CURLcode result = CURLE_OK;
   ssize_t nread;
 
-  (void)data;
   DEBUGASSERT(backend);
 
   nread = gnutls_record_recv(backend->gtls.session, buf, blen);
diff --git a/lib/vtls/mbedtls.c b/lib/vtls/mbedtls.c
index dff45a3299..bb9197f7fa 100644
--- a/lib/vtls/mbedtls.c
+++ b/lib/vtls/mbedtls.c
@@ -1133,7 +1133,6 @@ static CURLcode mbed_send(struct Curl_cfilter *cf, struct Curl_easy *data,
   CURLcode result = CURLE_OK;
   int nwritten;
 
-  (void)data;
   DEBUGASSERT(backend);
   *pnwritten = 0;
   connssl->io_need = CURL_SSL_IO_NEED_NONE;
@@ -1305,7 +1304,6 @@ static CURLcode mbed_recv(struct Curl_cfilter *cf, struct Curl_easy *data,
   CURLcode result = CURLE_OK;
   int nread;
 
-  (void)data;
   DEBUGASSERT(backend);
   *pnread = 0;
   connssl->io_need = CURL_SSL_IO_NEED_NONE;
diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 7390af8c64..b80891f654 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -5036,7 +5036,6 @@ static CURLcode ossl_send(struct Curl_cfilter *cf,
   CURLcode result = CURLE_OK;
   int nwritten;
 
-  (void)data;
   DEBUGASSERT(octx);
   *pnwritten = 0;
   ERR_clear_error();
@@ -5129,7 +5128,6 @@ static CURLcode ossl_recv(struct Curl_cfilter *cf,
   CURLcode result = CURLE_OK;
   int nread;
 
-  (void)data;
   DEBUGASSERT(octx);
 
   *pnread = 0;
diff --git a/lib/vtls/vtls.c b/lib/vtls/vtls.c
index be0c032bff..f11b11f8b9 100644
--- a/lib/vtls/vtls.c
+++ b/lib/vtls/vtls.c
@@ -752,9 +752,6 @@ CURLcode Curl_pin_peer_pubkey(struct Curl_easy *data,
                               const unsigned char *pubkey, size_t pubkeylen)
 {
   CURLcode result = CURLE_SSL_PINNEDPUBKEYNOTMATCH;
-#ifdef CURL_DISABLE_VERBOSE_STRINGS
-  (void)data;
-#endif
 
   /* if a path was not specified, do not pin */
   if(!pinnedpubkey)
diff --git a/lib/ws.c b/lib/ws.c
index ff6557a222..dd3c996ceb 100644
--- a/lib/ws.c
+++ b/lib/ws.c
@@ -486,7 +486,6 @@ static CURLcode ws_dec_pass_payload(struct ws_decoder *dec,
   size_t remain = curlx_sotouz_range(dec->payload_len - dec->payload_offset,
                                      0, SIZE_MAX);
 
-  (void)data;
   while(remain && Curl_bufq_peek(inraw, &inbuf, &inlen)) {
     if(inlen > remain)
       inlen = remain;