diff options
author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2023-12-05 14:16:43 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-08 12:02:37 +0100 |
commit | 1e7e56160d9ddec12093047e09abb17b0fa1a834 (patch) | |
tree | 768cd33727da5331db04018a4c90ccbdceb3c956 | |
parent | tty: hvc: dcc: Check for TXfull condition while setting up early console (diff) | |
download | linux-1e7e56160d9ddec12093047e09abb17b0fa1a834.tar.xz linux-1e7e56160d9ddec12093047e09abb17b0fa1a834.zip |
serial: ucc_uart: Fix multiple address space type errors
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>
-rw-r--r-- | drivers/tty/serial/ucc_uart.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c index f9ad942c9aaf..397b95dff7ed 100644 --- a/drivers/tty/serial/ucc_uart.c +++ b/drivers/tty/serial/ucc_uart.c @@ -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; } |