i2c-designware: Remove an useless local variable "num"

We couldn't know the original intent for this variable, but at this
point it's useless.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

diff --git a/drivers/i2c/busses/i2c-designware.c b/drivers/i2c/busses/i2c-designware.c
index 443f398..fd1616b 100644 (file)
--- a/drivers/i2c/busses/i2c-designware.c
+++ b/drivers/i2c/busses/i2c-designware.c
@@ -257,7 +257,6 @@ static void
 i2c_dw_xfer_msg(struct dw_i2c_dev *dev)
 {
        struct i2c_msg *msgs = dev->msgs;
-       int num = dev->msgs_num;
        u32 ic_con, intr_mask;
        int tx_limit = dev->tx_fifo_depth - readl(dev->base + DW_IC_TXFLR);
        int rx_limit = dev->rx_fifo_depth - readl(dev->base + DW_IC_RXFLR);
@@ -283,7 +282,7 @@ i2c_dw_xfer_msg(struct dw_i2c_dev *dev)
                writel(1, dev->base + DW_IC_ENABLE);
        }
 
-       for (; dev->msg_write_idx < num; dev->msg_write_idx++) {
+       for (; dev->msg_write_idx < dev->msgs_num; dev->msg_write_idx++) {
                /* if target address has changed, we need to
                 * reprogram the target address in the i2c
                 * adapter when we are done with this transfer
@@ -330,11 +329,10 @@ static void
 i2c_dw_read(struct dw_i2c_dev *dev)
 {
        struct i2c_msg *msgs = dev->msgs;
-       int num = dev->msgs_num;
        u32 addr = msgs[dev->msg_read_idx].addr;
        int rx_valid = readl(dev->base + DW_IC_RXFLR);
 
-       for (; dev->msg_read_idx < num; dev->msg_read_idx++) {
+       for (; dev->msg_read_idx < dev->msgs_num; dev->msg_read_idx++) {
                u32 len;
                u8 *buf;