mac802154: ops: declare channel and page as u8

The range of channel and page fits into an unsigned byte range. This
patch changes the set_channel parameter definitions for channel and
page to u8.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/net/ieee802154/at86rf230.c

@@ -54,7 +54,7 @@ struct at86rf2xx_chip_data {
 	u16 t_tx_timeout;
 	int rssi_base_val;
 
-	int (*set_channel)(struct at86rf230_local *, int, int);
+	int (*set_channel)(struct at86rf230_local *, u8, u8);
 	int (*get_desense_steps)(struct at86rf230_local *, s32);
 };
 
@@ -1012,13 +1012,13 @@ at86rf230_stop(struct ieee802154_hw *hw)
 }
 
 static int
-at86rf23x_set_channel(struct at86rf230_local *lp, int page, int channel)
+at86rf23x_set_channel(struct at86rf230_local *lp, u8 page, u8 channel)
 {
 	return at86rf230_write_subreg(lp, SR_CHANNEL, channel);
 }
 
 static int
-at86rf212_set_channel(struct at86rf230_local *lp, int page, int channel)
+at86rf212_set_channel(struct at86rf230_local *lp, u8 page, u8 channel)
 {
 	int rc;
 
@@ -1043,7 +1043,7 @@ at86rf212_set_channel(struct at86rf230_local *lp, int page, int channel)
 }
 
 static int
-at86rf230_channel(struct ieee802154_hw *hw, int page, int channel)
+at86rf230_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
 {
 	struct at86rf230_local *lp = hw->priv;
 	int rc;

drivers/net/ieee802154/cc2520.c

@@ -569,7 +569,7 @@ cc2520_ed(struct ieee802154_hw *hw, u8 *level)
 }
 
 static int
-cc2520_set_channel(struct ieee802154_hw *hw, int page, int channel)
+cc2520_set_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
 {
 	struct cc2520_private *priv = hw->priv;
 	int ret;

drivers/net/ieee802154/fakelb.c

@@ -55,7 +55,7 @@ fakelb_hw_ed(struct ieee802154_hw *hw, u8 *level)
 }
 
 static int
-fakelb_hw_channel(struct ieee802154_hw *hw, int page, int channel)
+fakelb_hw_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
 {
 	pr_debug("set channel to %d\n", channel);
 

drivers/net/ieee802154/mrf24j40.c

@@ -423,8 +423,7 @@ static void mrf24j40_stop(struct ieee802154_hw *hw)
 	write_short_reg(devrec, REG_INTCON, val);
 }
 
-static int mrf24j40_set_channel(struct ieee802154_hw *hw,
-				int page, int channel)
+static int mrf24j40_set_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
 {
 	struct mrf24j40 *devrec = hw->priv;
 	u8 val;

include/net/mac802154.h

@@ -178,9 +178,8 @@ struct ieee802154_ops {
 	int		(*xmit_async)(struct ieee802154_hw *hw,
 				      struct sk_buff *skb);
 	int		(*ed)(struct ieee802154_hw *hw, u8 *level);
-	int		(*set_channel)(struct ieee802154_hw *hw,
-				       int page,
-				       int channel);
+	int		(*set_channel)(struct ieee802154_hw *hw, u8 page,
+				       u8 channel);
 	int		(*set_hw_addr_filt)(struct ieee802154_hw *hw,
 					    struct ieee802154_hw_addr_filt *filt,
 					    unsigned long changed);