staging: brcm80211: added __iomem qualifier to softmac dma.c

Code cleanup. Makes it clear when an address is mapped IO space.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/brcm80211/brcmsmac/dma.c b/drivers/staging/brcm80211/brcmsmac/dma.c
index ef856ce..b56a302 100644 (file)
--- a/drivers/staging/brcm80211/brcmsmac/dma.c
+++ b/drivers/staging/brcm80211/brcmsmac/dma.c
@@ -224,9 +224,9 @@ struct dma_info {
        bool addrext;   /* this dma engine supports DmaExtendedAddrChanges */
 
        /* 64-bit dma tx engine registers */
-       struct dma64regs *d64txregs;
+       struct dma64regs __iomem *d64txregs;
        /* 64-bit dma rx engine registers */
-       struct dma64regs *d64rxregs;
+       struct dma64regs __iomem *d64rxregs;
        /* pointer to dma64 tx descriptor ring */
        struct dma64desc *txd64;
        /* pointer to dma64 rx descriptor ring */
@@ -391,7 +391,7 @@ static uint _dma_ctrlflags(struct dma_info *di, uint mask, uint flags)
        return dmactrlflags;
 }
 
-static bool _dma64_addrext(struct dma64regs *dma64regs)
+static bool _dma64_addrext(struct dma64regs __iomem *dma64regs)
 {
        u32 w;
        OR_REG(&dma64regs->control, D64_XC_AE);
@@ -553,8 +553,9 @@ static bool _dma_alloc(struct dma_info *di, uint direction)
 }
 
 struct dma_pub *dma_attach(char *name, struct si_pub *sih,
-                    void *dmaregstx, void *dmaregsrx, uint ntxd,
-                    uint nrxd, uint rxbufsize, int rxextheadroom,
+                    void __iomem *dmaregstx, void __iomem *dmaregsrx,
+                    uint ntxd, uint nrxd,
+                    uint rxbufsize, int rxextheadroom,
                     uint nrxpost, uint rxoffset, uint *msg_level)
 {
        struct dma_info *di;
@@ -571,8 +572,8 @@ struct dma_pub *dma_attach(char *name, struct si_pub *sih,
        di->dma64 = ((ai_core_sflags(sih, 0, 0) & SISF_DMA64) == SISF_DMA64);
 
        /* init dma reg pointer */
-       di->d64txregs = (struct dma64regs *) dmaregstx;
-       di->d64rxregs = (struct dma64regs *) dmaregsrx;
+       di->d64txregs = (struct dma64regs __iomem *) dmaregstx;
+       di->d64rxregs = (struct dma64regs __iomem *) dmaregsrx;
 
        /*
         * Default flags (which can be changed by the driver calling
@@ -1344,7 +1345,7 @@ struct sk_buff *dma_getnexttxp(struct dma_pub *pub, enum txd_range range)
        if (range == DMA_RANGE_ALL)
                end = di->txout;
        else {
-               struct dma64regs *dregs = di->d64txregs;
+               struct dma64regs __iomem *dregs = di->d64txregs;
 
                end = (u16) (B2I(((R_REG(&dregs->status0) &
                                 D64_XS0_CD_MASK) -

diff --git a/drivers/staging/brcm80211/brcmsmac/dma.h b/drivers/staging/brcm80211/brcmsmac/dma.h
index 4075dc9..ebc5bc5 100644 (file)
--- a/drivers/staging/brcm80211/brcmsmac/dma.h
+++ b/drivers/staging/brcm80211/brcmsmac/dma.h
@@ -74,8 +74,9 @@ struct dma_pub {
 };
 
 extern struct dma_pub *dma_attach(char *name, struct si_pub *sih,
-                           void *dmaregstx, void *dmaregsrx, uint ntxd,
-                           uint nrxd, uint rxbufsize, int rxextheadroom,
+                           void __iomem *dmaregstx, void __iomem *dmaregsrx,
+                           uint ntxd, uint nrxd,
+                           uint rxbufsize, int rxextheadroom,
                            uint nrxpost, uint rxoffset, uint *msg_level);
 
 void dma_rxinit(struct dma_pub *pub);