b43: Remove PIO support

Remove b43 PIO support.
DMA works well on all supported devices. There's no reason to use PIO.
Additionally, new devices don't support PIO in hardware anymore.
b43 PIO support is dead and unused code.

After applying this patch please do
git rm drivers/net/wireless/b43/pio.h
git rm drivers/net/wireless/b43/pio.c
to remove the main PIO support code.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 0 insertions, 50 deletions

diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h
index 3eed185be725..58db03ac536e 100644
--- a/drivers/net/wireless/b43/dma.h
+++ b/drivers/net/wireless/b43/dma.h
@@ -170,8 +170,6 @@ struct b43_dmadesc_generic {
 #define B43_DMA0_RX_BUFFERSIZE  (2304 + 100)
 #define B43_DMA3_RX_BUFFERSIZE  16
 
-#ifdef CONFIG_B43_DMA
-
 struct sk_buff;
 struct b43_private;
 struct b43_txstatus;
@@ -286,52 +284,4 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
 
 void b43_dma_rx(struct b43_dmaring *ring);
 
-#else /* CONFIG_B43_DMA */
-
-static inline int b43_dma_init(struct b43_wldev *dev)
-{
-        return 0;
-}
-static inline void b43_dma_free(struct b43_wldev *dev)
-{
-}
-static inline
-    int b43_dmacontroller_rx_reset(struct b43_wldev *dev,
-                                   u16 dmacontroller_mmio_base, int dma64)
-{
-        return 0;
-}
-static inline
-    int b43_dmacontroller_tx_reset(struct b43_wldev *dev,
-                                   u16 dmacontroller_mmio_base, int dma64)
-{
-        return 0;
-}
-static inline
-    void b43_dma_get_tx_stats(struct b43_wldev *dev,
-                              struct ieee80211_tx_queue_stats *stats)
-{
-}
-static inline
-    int b43_dma_tx(struct b43_wldev *dev,
-                   struct sk_buff *skb, struct ieee80211_tx_control *ctl)
-{
-        return 0;
-}
-static inline
-    void b43_dma_handle_txstatus(struct b43_wldev *dev,
-                                 const struct b43_txstatus *status)
-{
-}
-static inline void b43_dma_rx(struct b43_dmaring *ring)
-{
-}
-static inline void b43_dma_tx_suspend(struct b43_wldev *dev)
-{
-}
-static inline void b43_dma_tx_resume(struct b43_wldev *dev)
-{
-}
-
-#endif /* CONFIG_B43_DMA */
 #endif /* B43_DMA_H_ */