mac802154: remove check if operation is supported

This patch removes the check if operation is supported by driver layer.
This is done now by capabilities flags, if these are valid then the
driver should support the operation, otherwise a WARN_ON occurs.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/mac802154/cfg.c

@@ -98,10 +98,6 @@ ieee802154_set_cca_mode(struct wpan_phy *wpan_phy,
 	if (wpan_phy_cca_cmp(&wpan_phy->cca, cca))
 		return 0;
 
-	/* check if phy support this setting */
-	if (!(local->hw.flags & IEEE802154_HW_CCA_MODE))
-		return -EOPNOTSUPP;
-
 	ret = drv_set_cca_mode(local, cca);
 	if (!ret)
 		wpan_phy->cca = *cca;
@@ -127,17 +123,12 @@ ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy,
 				struct wpan_dev *wpan_dev,
 				u8 min_be, u8 max_be)
 {
-	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
-
 	ASSERT_RTNL();
 
 	if (wpan_dev->min_be == min_be &&
 	    wpan_dev->max_be == max_be)
 		return 0;
 
-	if (!(local->hw.flags & IEEE802154_HW_CSMA_PARAMS))
-		return -EOPNOTSUPP;
-
 	wpan_dev->min_be = min_be;
 	wpan_dev->max_be = max_be;
 	return 0;
@@ -161,16 +152,11 @@ ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy,
 				 struct wpan_dev *wpan_dev,
 				 u8 max_csma_backoffs)
 {
-	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
-
 	ASSERT_RTNL();
 
 	if (wpan_dev->csma_retries == max_csma_backoffs)
 		return 0;
 
-	if (!(local->hw.flags & IEEE802154_HW_CSMA_PARAMS))
-		return -EOPNOTSUPP;
-
 	wpan_dev->csma_retries = max_csma_backoffs;
 	return 0;
 }
@@ -180,16 +166,11 @@ ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy,
 				 struct wpan_dev *wpan_dev,
 				 s8 max_frame_retries)
 {
-	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
-
 	ASSERT_RTNL();
 
 	if (wpan_dev->frame_retries == max_frame_retries)
 		return 0;
 
-	if (!(local->hw.flags & IEEE802154_HW_FRAME_RETRIES))
-		return -EOPNOTSUPP;
-
 	wpan_dev->frame_retries = max_frame_retries;
 	return 0;
 }
@@ -198,16 +179,11 @@ static int
 ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
 			bool mode)
 {
-	struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
-
 	ASSERT_RTNL();
 
 	if (wpan_dev->lbt == mode)
 		return 0;
 
-	if (!(local->hw.flags & IEEE802154_HW_LBT))
-		return -EOPNOTSUPP;
-
 	wpan_dev->lbt = mode;
 	return 0;
 }