brcmfmac: Cleanup offsetof()

Create a macro to make the code a bit more readable, whilst we're stuck
with using struct element offsets as register offsets.

Signed-off-by: Ian Molton <ian@mnementh.co.uk>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
[arend: rename macro to SD_REG]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 752e0fb..b938407 100644 (file)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -161,6 +161,8 @@ struct rte_console {
 
 #define CORE_BUS_REG(base, field) \
                (base + offsetof(struct sdpcmd_regs, field))
+#define SD_REG(field) \
+               (offsetof(struct sdpcmd_regs, field))
 
 /* SDIO function 1 register CHIPCLKCSR */
 /* Force ALP request to backplane */
@@ -1087,12 +1089,10 @@ static u32 brcmf_sdio_hostmail(struct brcmf_sdio *bus)
        brcmf_dbg(SDIO, "Enter\n");
 
        /* Read mailbox data and ack that we did so */
-       ret = r_sdreg32(bus, &hmb_data,
-                       offsetof(struct sdpcmd_regs, tohostmailboxdata));
+       ret = r_sdreg32(bus, &hmb_data, SD_REG(tohostmailboxdata));
 
        if (ret == 0)
-               w_sdreg32(bus, SMB_INT_ACK,
-                         offsetof(struct sdpcmd_regs, tosbmailbox));
+               w_sdreg32(bus, SMB_INT_ACK, SD_REG(tosbmailbox));
        bus->sdcnt.f1regdata += 2;
 
        /* dongle indicates the firmware has halted/crashed */
@@ -1207,8 +1207,7 @@ static void brcmf_sdio_rxfail(struct brcmf_sdio *bus, bool abort, bool rtx)
 
        if (rtx) {
                bus->sdcnt.rxrtx++;
-               err = w_sdreg32(bus, SMB_NAK,
-                               offsetof(struct sdpcmd_regs, tosbmailbox));
+               err = w_sdreg32(bus, SMB_NAK, SD_REG(tosbmailbox));
 
                bus->sdcnt.f1regdata++;
                if (err == 0)
@@ -2333,9 +2332,7 @@ static uint brcmf_sdio_sendfromq(struct brcmf_sdio *bus, uint maxframes)
                if (!bus->intr) {
                        /* Check device status, signal pending interrupt */
                        sdio_claim_host(bus->sdiodev->func[1]);
-                       ret = r_sdreg32(bus, &intstatus,
-                                       offsetof(struct sdpcmd_regs,
-                                                intstatus));
+                       ret = r_sdreg32(bus, &intstatus, SD_REG(intstatus));
                        sdio_release_host(bus->sdiodev->func[1]);
                        bus->sdcnt.f2txdata++;
                        if (ret != 0)
@@ -2441,7 +2438,7 @@ static void brcmf_sdio_bus_stop(struct device *dev)
                brcmf_sdio_bus_sleep(bus, false, false);
 
                /* Disable and clear interrupts at the chip level also */
-               w_sdreg32(bus, 0, offsetof(struct sdpcmd_regs, hostintmask));
+               w_sdreg32(bus, 0, SD_REG(hostintmask));
                local_hostintmask = bus->hostintmask;
                bus->hostintmask = 0;
 
@@ -2460,8 +2457,7 @@ static void brcmf_sdio_bus_stop(struct device *dev)
                sdio_disable_func(sdiodev->func[SDIO_FUNC_2]);
 
                /* Clear any pending interrupts now that F2 is disabled */
-               w_sdreg32(bus, local_hostintmask,
-                         offsetof(struct sdpcmd_regs, intstatus));
+               w_sdreg32(bus, local_hostintmask, SD_REG(intstatus));
 
                sdio_release_host(sdiodev->func[1]);
        }
@@ -2507,7 +2503,7 @@ static int brcmf_sdio_intr_rstatus(struct brcmf_sdio *bus)
        int ret;
 
        buscore = brcmf_chip_get_core(bus->ci, BCMA_CORE_SDIO_DEV);
-       addr = buscore->base + offsetof(struct sdpcmd_regs, intstatus);
+       addr = buscore->base + SD_REG(intstatus);
 
        val = brcmf_sdiod_readl(bus->sdiodev, addr, &ret);
        bus->sdcnt.f1regdata++;
@@ -2584,11 +2580,9 @@ static void brcmf_sdio_dpc(struct brcmf_sdio *bus)
         */
        if (intstatus & I_HMB_FC_CHANGE) {
                intstatus &= ~I_HMB_FC_CHANGE;
-               err = w_sdreg32(bus, I_HMB_FC_CHANGE,
-                               offsetof(struct sdpcmd_regs, intstatus));
+               err = w_sdreg32(bus, I_HMB_FC_CHANGE, SD_REG(intstatus));
 
-               err = r_sdreg32(bus, &newstatus,
-                               offsetof(struct sdpcmd_regs, intstatus));
+               err = r_sdreg32(bus, &newstatus, SD_REG(intstatus));
                bus->sdcnt.f1regdata += 2;
                atomic_set(&bus->fcstate,
                           !!(newstatus & (I_HMB_FC_STATE | I_HMB_FC_CHANGE)));
@@ -3771,7 +3765,7 @@ static void brcmf_sdio_buscore_activate(void *ctx, struct brcmf_chip *chip,
 
        /* clear all interrupts */
        core = brcmf_chip_get_core(chip, BCMA_CORE_SDIO_DEV);
-       reg_addr = core->base + offsetof(struct sdpcmd_regs, intstatus);
+       reg_addr = core->base + SD_REG(intstatus);
        brcmf_sdiod_writel(sdiodev, reg_addr, 0xFFFFFFFF, NULL);
 
        if (rstvec)
@@ -4067,7 +4061,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err,
 
        /* Enable function 2 (frame transfers) */
        w_sdreg32(bus, SDPCM_PROT_VERSION << SMB_DATA_VERSION_SHIFT,
-                 offsetof(struct sdpcmd_regs, tosbmailboxdata));
+                 SD_REG(tosbmailboxdata));
        err = sdio_enable_func(sdiodev->func[SDIO_FUNC_2]);
 
 
@@ -4077,8 +4071,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err,
        if (!err) {
                /* Set up the interrupt mask and enable interrupts */
                bus->hostintmask = HOSTINTMASK;
-               w_sdreg32(bus, bus->hostintmask,
-                         offsetof(struct sdpcmd_regs, hostintmask));
+               w_sdreg32(bus, bus->hostintmask, SD_REG(hostintmask));
 
                brcmf_sdiod_writeb(sdiodev, SBSDIO_WATERMARK, 8, &err);
        } else {