b43: Fix warnings from gcc 4.6.0

gcc 4.6.0 warnings for b43:

  CC [M]  drivers/net/wireless/b43/lo.o
drivers/net/wireless/b43/lo.c: In function ‘lo_measure_gain_values’:
drivers/net/wireless/b43/lo.c:304:7: warning: variable ‘trsw_rx’ set but not used [-Wunused-but-set-variable]
  CC [M]  drivers/net/wireless/b43/dma.o
drivers/net/wireless/b43/dma.c: In function ‘free_all_descbuffers’:
drivers/net/wireless/b43/dma.c:760:30: warning: variable ‘desc’ set but not used [-Wunused-but-set-variable]
drivers/net/wireless/b43/dma.c: In function ‘b43_dma_handle_txstatus’:
drivers/net/wireless/b43/dma.c:1391:30: warning: variable ‘desc’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index 11e66cd..d02cf83 100644 (file)
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -757,14 +757,14 @@ static void dmacontroller_cleanup(struct b43_dmaring *ring)
 
 static void free_all_descbuffers(struct b43_dmaring *ring)
 {
-       struct b43_dmadesc_generic *desc;
        struct b43_dmadesc_meta *meta;
        int i;
 
        if (!ring->used_slots)
                return;
        for (i = 0; i < ring->nr_slots; i++) {
-               desc = ring->ops->idx2desc(ring, i, &meta);
+               /* get meta - ignore returned value */
+               ring->ops->idx2desc(ring, i, &meta);
 
                if (!meta->skb || b43_dma_ptr_is_poisoned(meta->skb)) {
                        B43_WARN_ON(!ring->tx);
@@ -1388,7 +1388,6 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
 {
        const struct b43_dma_ops *ops;
        struct b43_dmaring *ring;
-       struct b43_dmadesc_generic *desc;
        struct b43_dmadesc_meta *meta;
        int slot, firstused;
        bool frame_succeed;
@@ -1416,7 +1415,8 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
        ops = ring->ops;
        while (1) {
                B43_WARN_ON(slot < 0 || slot >= ring->nr_slots);
-               desc = ops->idx2desc(ring, slot, &meta);
+               /* get meta - ignore returned value */
+               ops->idx2desc(ring, slot, &meta);
 
                if (b43_dma_ptr_is_poisoned(meta->skb)) {
                        b43dbg(dev->wl, "Poisoned TX slot %d (first=%d) "

diff --git a/drivers/net/wireless/b43/lo.c b/drivers/net/wireless/b43/lo.c
index b32efd4..a3dc8bb 100644 (file)
--- a/drivers/net/wireless/b43/lo.c
+++ b/drivers/net/wireless/b43/lo.c
@@ -301,14 +301,12 @@ static void lo_measure_gain_values(struct b43_wldev *dev,
                max_rx_gain = 0;
 
        if (has_loopback_gain(phy)) {
-               int trsw_rx = 0;
                int trsw_rx_gain;
 
                if (use_trsw_rx) {
                        trsw_rx_gain = gphy->trsw_rx_gain / 2;
                        if (max_rx_gain >= trsw_rx_gain) {
                                trsw_rx_gain = max_rx_gain - trsw_rx_gain;
-                               trsw_rx = 0x20;
                        }
                } else
                        trsw_rx_gain = max_rx_gain;