From 50206949c3ead36f21f38d26fc20122bc40779d6 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Mon, 8 Aug 2011 15:58:45 +0200 Subject: [PATCH] staging: brcm80211: remove dma_addrwidth() function The function dma_addrwidth() always returns the same value so it is redundant. As such it has been removed. Reviewed-by: Henry Ptasinski Reviewed-by: Roland Vossen Signed-off-by: Arend van Spriel Signed-off-by: Greg Kroah-Hartman --- drivers/staging/brcm80211/brcmsmac/dma.c | 23 ----------------------- drivers/staging/brcm80211/brcmsmac/dma.h | 6 ------ drivers/staging/brcm80211/brcmsmac/main.c | 7 ------- 3 files changed, 36 deletions(-) diff --git a/drivers/staging/brcm80211/brcmsmac/dma.c b/drivers/staging/brcm80211/brcmsmac/dma.c index e66202371052..27b07ce854d9 100644 --- a/drivers/staging/brcm80211/brcmsmac/dma.c +++ b/drivers/staging/brcm80211/brcmsmac/dma.c @@ -159,15 +159,9 @@ #define D64_RX_FRM_STS_DSCRCNT 0x0f000000 /* no. of descriptors used - 1 */ #define D64_RX_FRM_STS_DATATYPE 0xf0000000 /* core-dependent data type */ -#define DMADDRWIDTH_30 30 /* 30-bit addressing capability */ -#define DMADDRWIDTH_32 32 /* 32-bit addressing capability */ -#define DMADDRWIDTH_63 63 /* 64-bit addressing capability */ -#define DMADDRWIDTH_64 64 /* 64-bit addressing capability */ - #define DMA64_DD_PARITY(dd) \ parity32((dd)->addrlow ^ (dd)->addrhigh ^ (dd)->ctrl1 ^ (dd)->ctrl2) - /* * packet headroom necessary to accommodate the largest header * in the system, (i.e TXOFF). By doing, we avoid the need to @@ -1936,23 +1930,6 @@ static void dma64_txrotate(struct dma_info *di) di->xmtptrbase + I2B(di->txout, struct dma64desc)); } -uint dma_addrwidth(struct si_pub *sih, void *dmaregs) -{ - /* Perform 64-bit checks only if we want to advertise 64-bit (> 32bit) capability) */ - /* DMA engine is 64-bit capable */ - if ((ai_core_sflags(sih, 0, 0) & SISF_DMA64) == SISF_DMA64) { - /* backplane are 64-bit capable */ - if (ai_backplane64(sih)) - /* If bus is System Backplane or PCIE then we can access 64-bits */ - if ((sih->bustype == SI_BUS) || - ((sih->bustype == PCI_BUS) && - (sih->buscoretype == PCIE_CORE_ID))) - return DMADDRWIDTH_64; - } - /* DMA hardware not supported by this driver */ - return DMADDRWIDTH_64; -} - /* * Mac80211 initiated actions sometimes require packets in the DMA queue to be * modified. The modified portion of the packet is not under control of the DMA diff --git a/drivers/staging/brcm80211/brcmsmac/dma.h b/drivers/staging/brcm80211/brcmsmac/dma.h index 4a330284dcc1..f75a0201d82a 100644 --- a/drivers/staging/brcm80211/brcmsmac/dma.h +++ b/drivers/staging/brcm80211/brcmsmac/dma.h @@ -178,12 +178,6 @@ extern const struct di_fcn_s dma64proc; #define dma_txcommitted(di) (dma64proc.txcommitted(di)) -/* return addresswidth allowed - * This needs to be done after SB attach but before dma attach. - * SB attach provides ability to probe backplane and dma core capabilities - * This info is needed by DMA_ALLOC_CONSISTENT in dma attach - */ -extern uint dma_addrwidth(struct si_pub *sih, void *dmaregs); void dma_walk_packets(struct dma_pub *dmah, void (*callback_fnc) (void *pkt, void *arg_a), void *arg_a); diff --git a/drivers/staging/brcm80211/brcmsmac/main.c b/drivers/staging/brcm80211/brcmsmac/main.c index d2551e970e58..e7a166f64f1c 100644 --- a/drivers/staging/brcm80211/brcmsmac/main.c +++ b/drivers/staging/brcm80211/brcmsmac/main.c @@ -861,14 +861,7 @@ static bool brcms_b_attach_dmapio(struct brcms_c_info *wlc, uint j, bool wme) snprintf(name, sizeof(name), "wl%d", unit); if (wlc_hw->di[0] == 0) { /* Init FIFOs */ - uint addrwidth; int dma_attach_err = 0; - /* Find out the DMA addressing capability and let OS know - * All the channels within one DMA core have 'common-minimum' same - * capability - */ - addrwidth = - dma_addrwidth(wlc_hw->sih, DMAREG(wlc_hw, DMA_TX, 0)); /* * FIFO 0 -- 2.20.1