qcacld-3.0: Add option to avoid timestamp in version string

Adding timestamp in version string is causing long compile times
for wlan project. Add option to avoid timestamp so that developers
can avoid long compile times.

Change-Id: Iaa5fd4f432549844ae319451cb43929a2d4b68ea
CRs-Fixed: 2064805

Kbuild

@@ -46,6 +46,10 @@ ifeq ($(KERNEL_BUILD), 0)
 	# These are configurable via Kconfig for kernel-based builds
 	# Need to explicitly configure for Android-based builds
 
+	ifneq ($(DEVELOPER_DISABLE_BUILD_TIMESTAMP),y)
+	CONFIG_BUILD_TIMESTAMP := y
+	endif
+
 	ifeq ($(CONFIG_ARCH_MDM9630), y)
 	CONFIG_MOBILE_ROUTER := y
 	endif
@@ -2201,9 +2205,11 @@ ifdef WLAN_HDD_ADAPTER_MAGIC
 CDEFINES += -DWLAN_HDD_ADAPTER_MAGIC=$(WLAN_HDD_ADAPTER_MAGIC)
 endif
 
+# inject some build related information
+ifeq ($(CONFIG_BUILD_TIMESTAMP), y)
+CDEFINES += -DBUILD_TIMESTAMP=\"$(shell date -u +'%Y-%m-%dT%H:%M:%SZ')\"
+endif
+
 # Module information used by KBuild framework
 obj-$(CONFIG_QCA_CLD_WLAN) += $(MODNAME).o
 $(MODNAME)-y := $(OBJS)
-
-# inject some build related information
-CDEFINES += -DBUILD_TIMESTAMP=\"$(shell date -u +'%Y-%m-%dT%H:%M:%SZ')\"

Kconfig

@@ -140,4 +140,7 @@ config ICMP_DISABLE_PS
 	bool "Enable ICMP packet disable powersave feature"
 	default n
 
+config CONFIG_BUILD_TIMESTAMP
+	bool "Embed timestamp in wlan version"
+	default n
 endif # QCA_CLD_WLAN

core/hdd/src/wlan_hdd_main.c

@@ -280,6 +280,10 @@ void wlan_hdd_txrx_pause_cb(uint8_t vdev_id,
  * post processing
  */
 uint8_t g_wlan_driver_version[] = QWLAN_VERSIONSTR;
+
+#ifndef BUILD_TIMESTAMP
+#define BUILD_TIMESTAMP ""
+#endif
 uint8_t g_wlan_driver_timestamp[] = BUILD_TIMESTAMP;
 
 /**
@@ -10707,7 +10711,7 @@ static int __hdd_module_init(void)
 	pr_err("%s: Loading driver v%s (%s)%s\n",
 	       WLAN_MODULE_NAME,
 	       QWLAN_VERSIONSTR,
-	       BUILD_TIMESTAMP,
+	       g_wlan_driver_timestamp,
 	       TIMER_MANAGER_STR MEMORY_DEBUG_STR);
 
 	ret = wlan_hdd_state_ctrl_param_create();