bluetooth: host: Increase long workqueue stack size

Change increases long workqueue stack size to prevent stack
overflows while processing GATT database hash.
CONFIG_BT_HCI_ECC_STACK_SIZE is removed, because the configured
stack was removed.

Signed-off-by: Marek Pieta <[email protected]>

Author: MarekPieta

doc/releases/release-notes-3.2.rst

@@ -104,6 +104,8 @@ Bluetooth
 * Host
 
   * Added :c:func:`bt_conn_auth_cb_overlay` to overlay authentication callbacks for a Bluetooth LE connection.
+  * Removed ``CONFIG_BT_HCI_ECC_STACK_SIZE``.
+    The Bluetooth long workqueue (:kconfig:option:`CONFIG_BT_LONG_WQ`) is used for processing ECC commands instead of the dedicated thread.
 
 * Mesh
 

subsys/bluetooth/host/Kconfig

@@ -15,7 +15,8 @@ config BT_LONG_WQ_STACK_SIZE
 	# Hidden: Long workqueue stack size. Should be derived from system
 	# requirements.
 	int
-	default BT_HCI_ECC_STACK_SIZE if BT_TINYCRYPT_ECC
+	default 1300 if BT_GATT_CACHING
+	default 1140 if BT_TINYCRYPT_ECC
 	default 1024
 
 config BT_LONG_WQ_PRIO
@@ -59,16 +60,6 @@ config BT_HCI_TX_STACK_SIZE
 config BT_HCI_TX_STACK_SIZE_WITH_PROMPT
 	bool "Override HCI Tx thread stack size"
 
-config BT_HCI_ECC_STACK_SIZE
-	# NOTE: This value is derived from other symbols and should only be
-	# changed if required by architecture
-	int "HCI ECC thread stack size"
-	depends on BT_TINYCRYPT_ECC
-	default 1140
-	help
-	  NOTE: This is an advanced setting and should not be changed unless
-	  absolutely necessary
-
 config BT_HCI_TX_PRIO
 	# Hidden option for Co-Operative Tx thread priority
 	int