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serial: ucc_uart: Fix multiple address space type errors

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sparse reports multiple problems with address space type.

Most problems are linked to missing __iomem qualifier.

Others are caused by dereferencing __iomem addresses.

Fix all this by adding missing __iomem and using ioread32be().

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312050412.zN2PKArS-lkp@intel.com/
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/e49deeb079391ff7273ec32f5563df94cf70bc95.1701781976.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe Leroy 2023-12-05 14:16:43 +01:00 committed by Greg Kroah-Hartman
parent 0ec058ece2
commit 1e7e56160d
1 changed files with 14 additions and 14 deletions
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28
drivers/tty/serial/ucc_uart.c
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@ -189,10 +189,10 @@ struct uart_qe_port {
u16 tx_fifosize;
int wait_closing;
u32 flags;
struct qe_bd *rx_bd_base;
struct qe_bd *rx_cur;
struct qe_bd *tx_bd_base;
struct qe_bd *tx_cur;
struct qe_bd __iomem *rx_bd_base;
struct qe_bd __iomem *rx_cur;
struct qe_bd __iomem *tx_bd_base;
struct qe_bd __iomem *tx_cur;
unsigned char *tx_buf;
unsigned char *rx_buf;
void *bd_virt; /* virtual address of the BD buffers */
@ -258,7 +258,7 @@ static unsigned int qe_uart_tx_empty(struct uart_port *port)
{
struct uart_qe_port *qe_port =
container_of(port, struct uart_qe_port, port);
struct qe_bd *bdp = qe_port->tx_bd_base;
struct qe_bd __iomem *bdp = qe_port->tx_bd_base;
while (1) {
if (ioread16be(&bdp->status) & BD_SC_READY)
@ -330,7 +330,7 @@ static void qe_uart_stop_tx(struct uart_port *port)
*/
static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
{
struct qe_bd *bdp;
struct qe_bd __iomem *bdp;
unsigned char *p;
unsigned int count;
struct uart_port *port = &qe_port->port;
@ -341,7 +341,7 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
/* Pick next descriptor and fill from buffer */
bdp = qe_port->tx_cur;
p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
p = qe2cpu_addr(ioread32be(&bdp->buf), qe_port);
*p++ = port->x_char;
iowrite16be(1, &bdp->length);
@ -368,7 +368,7 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
while (!(ioread16be(&bdp->status) & BD_SC_READY) && !uart_circ_empty(xmit)) {
count = 0;
p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
p = qe2cpu_addr(ioread32be(&bdp->buf), qe_port);
while (count < qe_port->tx_fifosize) {
*p++ = xmit->buf[xmit->tail];
uart_xmit_advance(port, 1);
@ -460,7 +460,7 @@ static void qe_uart_int_rx(struct uart_qe_port *qe_port)
unsigned char ch, *cp;
struct uart_port *port = &qe_port->port;
struct tty_port *tport = &port->state->port;
struct qe_bd *bdp;
struct qe_bd __iomem *bdp;
u16 status;
unsigned int flg;
@ -487,7 +487,7 @@ static void qe_uart_int_rx(struct uart_qe_port *qe_port)
}
/* get pointer */
cp = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
cp = qe2cpu_addr(ioread32be(&bdp->buf), qe_port);
/* loop through the buffer */
while (i-- > 0) {
@ -590,7 +590,7 @@ static void qe_uart_initbd(struct uart_qe_port *qe_port)
{
int i;
void *bd_virt;
struct qe_bd *bdp;
struct qe_bd __iomem *bdp;
/* Set the physical address of the host memory buffers in the buffer
* descriptors, and the virtual address for us to work with.
@ -648,7 +648,7 @@ static void qe_uart_init_ucc(struct uart_qe_port *qe_port)
{
u32 cecr_subblock;
struct ucc_slow __iomem *uccp = qe_port->uccp;
struct ucc_uart_pram *uccup = qe_port->uccup;
struct ucc_uart_pram __iomem *uccup = qe_port->uccup;
unsigned int i;
@ -983,7 +983,7 @@ static int qe_uart_request_port(struct uart_port *port)
qe_port->us_private = uccs;
qe_port->uccp = uccs->us_regs;
qe_port->uccup = (struct ucc_uart_pram *) uccs->us_pram;
qe_port->uccup = (struct ucc_uart_pram __iomem *)uccs->us_pram;
qe_port->rx_bd_base = uccs->rx_bd;
qe_port->tx_bd_base = uccs->tx_bd;
@ -1156,7 +1156,7 @@ static void uart_firmware_cont(const struct firmware *fw, void *context)
firmware = (struct qe_firmware *) fw->data;
if (firmware->header.length != fw->size) {
if (be32_to_cpu(firmware->header.length) != fw->size) {
dev_err(dev, "invalid firmware\n");
goto out;
}