diff --git a/components/TARGET_PSA/services/attestation/COMPONENT_PSA_SRV_IMPL/tfm_impl/attestation_core.c b/components/TARGET_PSA/services/attestation/COMPONENT_PSA_SRV_IMPL/tfm_impl/attestation_core.c
index 2df119b6b0..1e3ef463d5 100755
--- a/components/TARGET_PSA/services/attestation/COMPONENT_PSA_SRV_IMPL/tfm_impl/attestation_core.c
+++ b/components/TARGET_PSA/services/attestation/COMPONENT_PSA_SRV_IMPL/tfm_impl/attestation_core.c
@@ -869,7 +869,7 @@ attest_create_token(struct useful_buf_c *challenge,
     token_err = attest_token_start(&attest_token_ctx,
                                    option_flags,         /* option_flags */
                                    key_select,           /* key_select   */
-                                   COSE_ALGORITHM_ES256, /* alg_select   */
+                                   alg_select,           /* alg_select   */
                                    token);
 
     if (token_err != ATTEST_TOKEN_ERR_SUCCESS) {
diff --git a/features/cellular/framework/AT/AT_CellularBase.cpp b/features/cellular/framework/AT/AT_CellularBase.cpp
index f8f77dbc50..498116e708 100644
--- a/features/cellular/framework/AT/AT_CellularBase.cpp
+++ b/features/cellular/framework/AT/AT_CellularBase.cpp
@@ -51,6 +51,6 @@ intptr_t AT_CellularBase::get_property(CellularProperty key)
     if (_property_array) {
         return _property_array[key];
     } else {
-        return NULL;
+        return 0;
     }
 }
diff --git a/features/cellular/framework/device/CellularContext.cpp b/features/cellular/framework/device/CellularContext.cpp
index cf2746ecdb..3d956355d1 100644
--- a/features/cellular/framework/device/CellularContext.cpp
+++ b/features/cellular/framework/device/CellularContext.cpp
@@ -64,7 +64,7 @@ CellularContext::CellularContext() : _next(0), _stack(0), _pdp_type(DEFAULT_PDP_
     _apn(0), _uname(0), _pwd(0), _dcd_pin(NC), _active_high(false), _cp_netif(0), _retry_array_length(0),
     _retry_count(0), _device(0), _nw(0), _is_blocking(true), _nonip_req(false), _cp_in_use(false)
 {
-    memset(_retry_timeout_array, 0, CELLULAR_RETRY_ARRAY_SIZE);
+    memset(_retry_timeout_array, 0, sizeof(_retry_timeout_array));
 }
 
 void CellularContext::cp_data_received()
diff --git a/features/cellular/framework/targets/QUECTEL/BG96/QUECTEL_BG96_CellularStack.cpp b/features/cellular/framework/targets/QUECTEL/BG96/QUECTEL_BG96_CellularStack.cpp
index 2cfef67cd3..c65fd50edd 100644
--- a/features/cellular/framework/targets/QUECTEL/BG96/QUECTEL_BG96_CellularStack.cpp
+++ b/features/cellular/framework/targets/QUECTEL/BG96/QUECTEL_BG96_CellularStack.cpp
@@ -413,7 +413,6 @@ void QUECTEL_BG96_CellularStack::ip2dot(const SocketAddress &ip, char *dot)
 {
     if (ip.get_ip_version() == NSAPI_IPv6) {
         const uint8_t *bytes = (uint8_t *)ip.get_ip_bytes();
-        char *p = dot;
         for (int i = 0; i < NSAPI_IPv6_BYTES; i += 2) {
             if (i != 0) {
                 *dot++ = ':';
diff --git a/features/frameworks/TARGET_PSA/pal/pal_mbed_os_intf.cpp b/features/frameworks/TARGET_PSA/pal/pal_mbed_os_intf.cpp
index dded6d0180..00738c0144 100644
--- a/features/frameworks/TARGET_PSA/pal/pal_mbed_os_intf.cpp
+++ b/features/frameworks/TARGET_PSA/pal/pal_mbed_os_intf.cpp
@@ -58,9 +58,6 @@ static void psa_attestation_destroy_key_for_test()
 
 static void psa_attestation_inject_key_for_test(void)
 {
-
-
-    psa_status_t status = PSA_SUCCESS;
     size_t exported_length;
     uint8_t exported[sizeof(public_key_data)];
 
diff --git a/features/frameworks/mbed-coap/source/sn_coap_protocol.c b/features/frameworks/mbed-coap/source/sn_coap_protocol.c
index aff7fff444..7f0f0d83cb 100644
--- a/features/frameworks/mbed-coap/source/sn_coap_protocol.c
+++ b/features/frameworks/mbed-coap/source/sn_coap_protocol.c
@@ -1203,6 +1203,8 @@ void sn_coap_protocol_linked_list_duplication_info_remove(struct coap_s *handle,
     (void)msg_id;
 #endif //SN_COAP_DUPLICATION_MAX_MSGS_COUNT
 }
+
+#if SN_COAP_DUPLICATION_MAX_MSGS_COUNT
 static void sn_coap_protocol_duplication_info_free(struct coap_s *handle, coap_duplication_info_s *duplication_info_ptr)
 {
     if (duplication_info_ptr) {
@@ -1214,6 +1216,7 @@ static void sn_coap_protocol_duplication_info_free(struct coap_s *handle, coap_d
         handle->sn_coap_protocol_free(duplication_info_ptr);
     }
 }
+#endif // SN_COAP_DUPLICATION_MAX_MSGS_COUNT
 
 #if SN_COAP_BLOCKWISE_ENABLED || SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
 /**************************************************************************//**
diff --git a/features/storage/filesystem/littlefs/LittleFileSystem.cpp b/features/storage/filesystem/littlefs/LittleFileSystem.cpp
index 34ee5f6093..fce176f65c 100644
--- a/features/storage/filesystem/littlefs/LittleFileSystem.cpp
+++ b/features/storage/filesystem/littlefs/LittleFileSystem.cpp
@@ -145,13 +145,13 @@ LittleFileSystem::LittleFileSystem(const char *name, BlockDevice *bd,
                                    lfs_size_t read_size, lfs_size_t prog_size,
                                    lfs_size_t block_size, lfs_size_t lookahead)
     : FileSystem(name)
+    , _lfs()
+    , _config()
+    , _bd(NULL)
     , _read_size(read_size)
     , _prog_size(prog_size)
     , _block_size(block_size)
     , _lookahead(lookahead)
-    , _lfs()
-    , _config()
-    , _bd(NULL)
 {
     if (bd) {
         mount(bd);