staging: brcm80211: remove wl_alloc_dma_resources() function

The function wl_alloc_dma_resources() does not provide any value
for the brcmsmac driver as it only returns true. It has been
removed from the driver.
Reviewed-by: Henry Ptasinski <henryp@broadcom.com>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmsmac/mac80211_if.c

@@ -1444,14 +1444,6 @@ void brcms_intrson(struct brcms_info *wl)
 	INT_UNLOCK(wl, flags);
 }
 
-/*
- * precondition: perimeter lock has been acquired
- */
-bool wl_alloc_dma_resources(struct brcms_info *wl, uint addrwidth)
-{
-	return true;
-}
-
 u32 brcms_intrsoff(struct brcms_info *wl)
 {
 	unsigned long flags;

drivers/staging/brcm80211/brcmsmac/mac80211_if.h

@@ -87,7 +87,6 @@ extern int brcms_up(struct brcms_info *wl);
 extern void brcms_down(struct brcms_info *wl);
 extern void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
 				bool state, int prio);
-extern bool wl_alloc_dma_resources(struct brcms_info *wl, uint dmaddrwidth);
 extern bool brcms_rfkill_set_hw_state(struct brcms_info *wl);
 
 /* timer functions */

drivers/staging/brcm80211/brcmsmac/main.c

@@ -870,12 +870,6 @@ static bool brcms_b_attach_dmapio(struct brcms_c_info *wlc, uint j, bool wme)
 		addrwidth =
 		    dma_addrwidth(wlc_hw->sih, DMAREG(wlc_hw, DMA_TX, 0));
 
-		if (!wl_alloc_dma_resources(wlc_hw->wlc->wl, addrwidth)) {
-			wiphy_err(wiphy, "wl%d: wlc_attach: alloc_dma_"
-				  "resources failed\n", unit);
-			return false;
-		}
-
 		/*
 		 * FIFO 0
 		 * TX: TX_AC_BK_FIFO (TX AC Background data packets)