[netdevice] Add netdev_is_open() wrapper function

Signed-off-by: Michael Brown <mcb30@etherboot.org>

src/arch/i386/hci/commands/pxe_cmd.c

@@ -6,7 +6,7 @@
 FILE_LICENCE ( GPL2_OR_LATER );
 
 static int startpxe_payload ( struct net_device *netdev ) {
-	if ( netdev->state & NETDEV_OPEN )
+	if ( netdev_is_open ( netdev ) )
 		pxe_activate ( netdev );
 	return 0;
 }

src/arch/i386/interface/pxe/pxe_undi.c

@@ -366,7 +366,7 @@ pxenv_undi_set_station_address ( struct s_PXENV_UNDI_SET_STATION_ADDRESS
 	/* If adapter is open, the change will have no effect; return
 	 * an error
 	 */
-	if ( pxe_netdev->state & NETDEV_OPEN ) {
+	if ( netdev_is_open ( pxe_netdev ) ) {
 		DBG ( " failed: netdev is open\n" );
 		undi_set_station_address->Status =
 			PXENV_STATUS_UNDI_INVALID_STATE;

src/include/gpxe/netdevice.h

@@ -480,6 +480,17 @@ netdev_link_ok ( struct net_device *netdev ) {
 	return ( netdev->link_rc == 0 );
 }
 
+/**
+ * Check whether or not network device is open
+ *
+ * @v netdev		Network device
+ * @v is_open		Network device is open
+ */
+static inline __attribute__ (( always_inline )) int
+netdev_is_open ( struct net_device *netdev ) {
+	return ( netdev->state & NETDEV_OPEN );
+}
+
 extern void netdev_link_down ( struct net_device *netdev );
 extern int netdev_tx ( struct net_device *netdev, struct io_buffer *iobuf );
 extern void netdev_tx_complete_err ( struct net_device *netdev,

src/interface/efi/efi_snp.c

@@ -328,7 +328,7 @@ efi_snp_station_address ( EFI_SIMPLE_NETWORK_PROTOCOL *snp, BOOLEAN reset,
 	memcpy ( snpdev->netdev->ll_addr, new, ll_protocol->ll_addr_len );
 
 	/* MAC address changes take effect only on netdev_open() */
-	if ( snpdev->netdev->state & NETDEV_OPEN ) {
+	if ( netdev_is_open ( snpdev->netdev ) ) {
 		DBGC ( snpdev, "SNPDEV %p MAC address changed while net "
 		       "devive open\n", snpdev );
 	}
@@ -713,7 +713,7 @@ static VOID EFIAPI efi_snp_wait_for_packet ( EFI_EVENT event,
 	DBGCP ( snpdev, "SNPDEV %p WAIT_FOR_PACKET\n", snpdev );
 
 	/* Do nothing unless the net device is open */
-	if ( ! ( snpdev->netdev->state & NETDEV_OPEN ) )
+	if ( ! netdev_is_open ( snpdev->netdev ) )
 		return;
 
 	/* Poll the network device */

src/net/80211/net80211.c

@@ -1304,7 +1304,7 @@ struct net80211_probe_ctx * net80211_probe_start ( struct net80211_device *dev,
 	if ( ! ctx )
 		return NULL;
 
-	assert ( dev->netdev->state & NETDEV_OPEN );
+	assert ( netdev_is_open ( dev->netdev ) );
 
 	ctx->dev = dev;
 	ctx->old_keep_mgmt = net80211_keep_mgmt ( dev, 1 );
@@ -1908,7 +1908,7 @@ static int net80211_check_settings_update ( void )
 	int key_reassoc;
 
 	list_for_each_entry ( dev, &net80211_devices, list ) {
-		if ( ! ( dev->netdev->state & NETDEV_OPEN ) )
+		if ( ! netdev_is_open ( dev->netdev ) )
 			continue;
 
 		key_reassoc = 0;
@@ -2012,7 +2012,7 @@ static void net80211_set_rtscts_rate ( struct net80211_device *dev )
  */
 void net80211_set_rate_idx ( struct net80211_device *dev, int rate )
 {
-	assert ( dev->netdev->state & NETDEV_OPEN );
+	assert ( netdev_is_open ( dev->netdev ) );
 
 	if ( rate >= 0 && rate < dev->nr_rates && rate != dev->rate ) {
 		DBGC2 ( dev, "802.11 %p changing rate from %d->%d Mbps\n",
@@ -2035,7 +2035,7 @@ int net80211_change_channel ( struct net80211_device *dev, int channel )
 {
 	int i, oldchan = dev->channel;
 
-	assert ( dev->netdev->state & NETDEV_OPEN );
+	assert ( netdev_is_open ( dev->netdev ) );
 
 	for ( i = 0; i < dev->nr_channels; i++ ) {
 		if ( dev->channels[i].channel_nr == channel ) {
@@ -2064,7 +2064,7 @@ int net80211_change_channel ( struct net80211_device *dev, int channel )
 int net80211_prepare_probe ( struct net80211_device *dev, int band,
 			     int active )
 {
-	assert ( dev->netdev->state & NETDEV_OPEN );
+	assert ( netdev_is_open ( dev->netdev ) );
 
 	if ( active && ( band & NET80211_BAND_BIT_5GHZ ) ) {
 		DBGC ( dev, "802.11 %p cannot perform active scanning on "
@@ -2124,7 +2124,7 @@ int net80211_prepare_assoc ( struct net80211_device *dev,
 	struct net80211_handshaker *handshaker;
 	int rc;
 
-	assert ( dev->netdev->state & NETDEV_OPEN );
+	assert ( netdev_is_open ( dev->netdev ) );
 
 	net80211_set_state ( dev, NET80211_ASSOCIATED, 0, 0 );
 	memcpy ( dev->bssid, wlan->bssid, ETH_ALEN );

src/net/ipv4.c

@@ -118,7 +118,7 @@ static struct ipv4_miniroute * ipv4_route ( struct in_addr *dest ) {
 
 	/* Find first usable route in routing table */
 	list_for_each_entry ( miniroute, &ipv4_miniroutes, list ) {
-		if ( ! ( miniroute->netdev->state & NETDEV_OPEN ) )
+		if ( ! netdev_is_open ( miniroute->netdev ) )
 			continue;
 		local = ( ( ( dest->s_addr ^ miniroute->address.s_addr )
 			    & miniroute->netmask.s_addr ) == 0 );

src/net/netdevice.c

@@ -130,7 +130,7 @@ int netdev_tx ( struct net_device *netdev, struct io_buffer *iobuf ) {
 
 	list_add_tail ( &iobuf->list, &netdev->tx_queue );
 
-	if ( ! ( netdev->state & NETDEV_OPEN ) ) {
+	if ( ! netdev_is_open ( netdev ) ) {
 		rc = -ENETUNREACH;
 		goto err;
 	}
@@ -263,7 +263,7 @@ void netdev_rx_err ( struct net_device *netdev,
  */
 void netdev_poll ( struct net_device *netdev ) {
 
-	if ( netdev->state & NETDEV_OPEN )
+	if ( netdev_is_open ( netdev ) )
 		netdev->op->poll ( netdev );
 }
 
@@ -509,7 +509,7 @@ struct net_device * last_opened_netdev ( void ) {
 	struct net_device *netdev;
 
 	list_for_each_entry ( netdev, &open_net_devices, open_list ) {
-		assert ( netdev->state & NETDEV_OPEN );
+		assert ( netdev_is_open ( netdev ) );
 		return netdev;
 	}
 

src/usr/ifmgmt.c

@@ -90,7 +90,7 @@ void ifstat ( struct net_device *netdev ) {
 	printf ( "%s: %s on %s (%s)\n"
 		 "  [Link:%s, TX:%d TXE:%d RX:%d RXE:%d]\n",
 		 netdev->name, netdev_addr ( netdev ), netdev->dev->name,
-		 ( ( netdev->state & NETDEV_OPEN ) ? "open" : "closed" ),
+		 ( netdev_is_open ( netdev ) ? "open" : "closed" ),
 		 ( netdev_link_ok ( netdev ) ? "up" : "down" ),
 		 netdev->tx_stats.good, netdev->tx_stats.bad,
 		 netdev->rx_stats.good, netdev->rx_stats.bad );

src/usr/iwmgmt.c

@@ -125,7 +125,7 @@ int iwlist ( struct net80211_device *dev ) {
 	char ssid_buf[22];
 	int rc;
 	unsigned i;
-	int was_opened = dev->netdev->state & NETDEV_OPEN;
+	int was_opened = netdev_is_open ( dev->netdev );
 	int was_channel = dev->channels[dev->channel].channel_nr;
 
 	if ( ! was_opened ) {

src/usr/route.c

@@ -38,7 +38,7 @@ void route ( void ) {
 		printf ( "%s", inet_ntoa ( miniroute->netmask ) );
 		if ( miniroute->gateway.s_addr )
 			printf ( " gw %s", inet_ntoa ( miniroute->gateway ) );
-		if ( ! ( miniroute->netdev->state & NETDEV_OPEN ) )
+		if ( ! netdev_is_open ( miniroute->netdev ) )
 			printf ( " (inaccessible)" );
 		printf ( "\n" );
 	}