fsl_pq_mdio: Fix compiler/sparse warnings (part 2)

This patch fixes following warnings:

fsl_pq_mdio.c:112:38: warning: cast adds address space to expression (<asn:2>)
fsl_pq_mdio.c:124:38: warning: cast adds address space to expression (<asn:2>)
fsl_pq_mdio.c:133:38: warning: cast adds address space to expression (<asn:2>)
fsl_pq_mdio.c:414:11: warning: cast adds address space to expression (<asn:2>)

Instead of adding __force all over the place, introduce convenient
fsl_pq_mdio_get_regs() call that does the ugly casting just once.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c
index fb8c8d9dcf29..b2ca596760f8 100644
--- a/drivers/net/fsl_pq_mdio.c
+++ b/drivers/net/fsl_pq_mdio.c
@@ -103,13 +103,18 @@ int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs,
         return value;
 }
 
+static struct fsl_pq_mdio __iomem *fsl_pq_mdio_get_regs(struct mii_bus *bus)
+{
+        return (void __iomem __force *)bus->priv;
+}
+
 /*
  * Write value to the PHY at mii_id at register regnum,
  * on the bus, waiting until the write is done before returning.
  */
 int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value)
 {
-        struct fsl_pq_mdio __iomem *regs = (void __iomem *)bus->priv;
+        struct fsl_pq_mdio __iomem *regs = fsl_pq_mdio_get_regs(bus);
 
         /* Write to the local MII regs */
         return(fsl_pq_local_mdio_write(regs, mii_id, regnum, value));
@@ -121,7 +126,7 @@ int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value)
  */
 int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
 {
-        struct fsl_pq_mdio __iomem *regs = (void __iomem *)bus->priv;
+        struct fsl_pq_mdio __iomem *regs = fsl_pq_mdio_get_regs(bus);
 
         /* Read the local MII regs */
         return(fsl_pq_local_mdio_read(regs, mii_id, regnum));
@@ -130,7 +135,7 @@ int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
 /* Reset the MIIM registers, and wait for the bus to free */
 static int fsl_pq_mdio_reset(struct mii_bus *bus)
 {
-        struct fsl_pq_mdio __iomem *regs = (void __iomem *)bus->priv;
+        struct fsl_pq_mdio __iomem *regs = fsl_pq_mdio_get_regs(bus);
         int timeout = PHY_INIT_TIMEOUT;
 
         mutex_lock(&bus->mdio_lock);
@@ -404,7 +409,7 @@ static int fsl_pq_mdio_remove(struct of_device *ofdev)
 
         dev_set_drvdata(device, NULL);
 
-        iounmap((void __iomem *)bus->priv);
+        iounmap(fsl_pq_mdio_get_regs(bus));
         bus->priv = NULL;
         mdiobus_free(bus);