iwlwifi: move symbols into a separate namespace

Nobody other than iwlwifi itself should be accessing the symbols
that it exports, so make that clear by moving them into a separate
new namespace ("IWLWIFI").

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220130115024.67eba0b9867d.I6291815892746956c36489081f24f4f95b5160e4@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/dvm/main.c

@@ -48,6 +48,7 @@
 #define DRV_DESCRIPTION	"Intel(R) Wireless WiFi Link AGN driver for Linux"
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(IWLWIFI);
 
 /* Please keep this array *SORTED* by hex value.
  * Access is done through binary search.

drivers/net/wireless/intel/iwlwifi/iwl-drv.h

@@ -84,7 +84,7 @@ void iwl_drv_stop(struct iwl_drv *drv);
  * everything is built-in, then we can avoid that.
  */
 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
-#define IWL_EXPORT_SYMBOL(sym)	EXPORT_SYMBOL_GPL(sym)
+#define IWL_EXPORT_SYMBOL(sym)	EXPORT_SYMBOL_NS_GPL(sym, IWLWIFI)
 #else
 #define IWL_EXPORT_SYMBOL(sym)
 #endif

drivers/net/wireless/intel/iwlwifi/mvm/ops.c

@@ -32,6 +32,7 @@
 #define DRV_DESCRIPTION	"The new Intel(R) wireless AGN driver for Linux"
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(IWLWIFI);
 
 static const struct iwl_op_mode_ops iwl_mvm_ops;
 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;