serial: sh-sci: Fix warnings due to improper casts and printk formats

Use the %zu and %pad printk specifiers to print size_t and dma_addr_t
variables, and cast pointers to uintptr_t instead of unsigned int where
applicable. This fixes warnings on platforms where pointers and/or
dma_addr_t have a different size than int.

Cc: linux-serial@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 7d8103c..6e5ce62 100644 (file)
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -557,7 +557,7 @@ static inline int sci_rxd_in(struct uart_port *port)
                return 1;
 
        /* Cast for ARM damage */
-       return !!__raw_readb((void __iomem *)s->cfg->port_reg);
+       return !!__raw_readb((void __iomem *)(uintptr_t)s->cfg->port_reg);
 }
 
 /* ********************************************************************** *
@@ -1309,7 +1309,7 @@ static int sci_dma_rx_push(struct sci_port *s, size_t count)
        }
 
        if (room < count)
-               dev_warn(port->dev, "Rx overrun: dropping %u bytes\n",
+               dev_warn(port->dev, "Rx overrun: dropping %zu bytes\n",
                         count - room);
        if (!room)
                return room;
@@ -1442,7 +1442,7 @@ static void work_fn_rx(struct work_struct *work)
                int count;
 
                chan->device->device_control(chan, DMA_TERMINATE_ALL, 0);
-               dev_dbg(port->dev, "Read %u bytes with cookie %d\n",
+               dev_dbg(port->dev, "Read %zu bytes with cookie %d\n",
                        sh_desc->partial, sh_desc->cookie);
 
                spin_lock_irqsave(&port->lock, flags);
@@ -1691,16 +1691,17 @@ static void sci_request_dma(struct uart_port *port)
                s->chan_tx = chan;
                sg_init_table(&s->sg_tx, 1);
                /* UART circular tx buffer is an aligned page. */
-               BUG_ON((int)port->state->xmit.buf & ~PAGE_MASK);
+               BUG_ON((uintptr_t)port->state->xmit.buf & ~PAGE_MASK);
                sg_set_page(&s->sg_tx, virt_to_page(port->state->xmit.buf),
-                           UART_XMIT_SIZE, (int)port->state->xmit.buf & ~PAGE_MASK);
+                           UART_XMIT_SIZE,
+                           (uintptr_t)port->state->xmit.buf & ~PAGE_MASK);
                nent = dma_map_sg(port->dev, &s->sg_tx, 1, DMA_TO_DEVICE);
                if (!nent)
                        sci_tx_dma_release(s, false);
                else
-                       dev_dbg(port->dev, "%s: mapped %d@%p to %x\n", __func__,
-                               sg_dma_len(&s->sg_tx),
-                               port->state->xmit.buf, sg_dma_address(&s->sg_tx));
+                       dev_dbg(port->dev, "%s: mapped %d@%p to %pad\n", __func__,
+                               sg_dma_len(&s->sg_tx), port->state->xmit.buf,
+                               &sg_dma_address(&s->sg_tx));
 
                s->sg_len_tx = nent;
 
@@ -1740,7 +1741,7 @@ static void sci_request_dma(struct uart_port *port)
 
                        sg_init_table(sg, 1);
                        sg_set_page(sg, virt_to_page(buf[i]), s->buf_len_rx,
-                                   (int)buf[i] & ~PAGE_MASK);
+                                   (uintptr_t)buf[i] & ~PAGE_MASK);
                        sg_dma_address(sg) = dma[i];
                }