[nrf fromlist] Bluetooth: Host: Use memset to initialize `psa_mac_o…

…peration_t` In `db_hash_setup()` the state object for MAC operations was initialized using `psa_mac_operation_init()`. This function was not always optimized or inlined. A way to reduce stack usage is to use `memset()` and set the object to 0. This is one of the option documented to initialize `psa_mac_operation_t` object. Upstream PR #: 86094 Signed-off-by: Théo Battrel <[email protected]>
nrfconnect · Feb 25, 2025 · 0a869ab · 0a869ab
1 parent 50128e3
commit 0a869ab
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/subsys/bluetooth/host/gatt.c b/subsys/bluetooth/host/gatt.c
@@ -717,7 +717,7 @@ static int db_hash_setup(struct gen_hash_state *state, uint8_t *key)
 		LOG_ERR("Unable to import the key for AES CMAC %d", ret);
 		return -EIO;
 	}
-	state->operation = psa_mac_operation_init();
+	memset(&state->operation, 0, sizeof(state->operation));
 
 	ret = psa_mac_sign_setup(&(state->operation), state->key, PSA_ALG_CMAC);
 	if (ret != PSA_SUCCESS) {