Re: [PATCH 10/11] tty: serial: 8250: Replace printk by pr_*

From: Peter Hurley
Date: Wed Dec 16 2015 - 12:00:38 EST


Hi Anton,

On 12/16/2015 07:36 AM, Anton Wuerfel wrote:
> This patch replaces printk by the corresponding variant of pr_* in order to
> fix checkpatch warnings.

Comments below.

> Signed-off-by: Anton WÃrfel <anton.wuerfel@xxxxxx>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@xxxxxx>
> CC: linux-kernel@xxxxxxxxxxxx
> ---
> drivers/tty/serial/8250/8250_core.c | 5 ++---
> drivers/tty/serial/8250/8250_gsc.c | 6 ++----
> drivers/tty/serial/8250/8250_hp300.c | 14 +++++++-------
> drivers/tty/serial/8250/8250_pnp.c | 6 +++---
> drivers/tty/serial/8250/8250_port.c | 3 +--
> 5 files changed, 15 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
> index 2b3731f..b5e0c48 100644
> --- a/drivers/tty/serial/8250/8250_core.c
> +++ b/drivers/tty/serial/8250/8250_core.c
> @@ -1095,9 +1095,8 @@ static int __init serial8250_init(void)
>
> serial8250_isa_init_ports();
>
> - printk(KERN_INFO "Serial: 8250/16550 driver, "
> - "%d ports, IRQ sharing %sabled\n", nr_uarts,
> - share_irqs ? "en" : "dis");
> + pr_info("Serial: 8250/16550 driver, %d ports, IRQ sharing %sabled\n",
> + nr_uarts, share_irqs ? "en" : "dis");
>
> #ifdef CONFIG_SPARC
> ret = sunserial_register_minors(&serial8250_reg, UART_NR);
> diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
> index 2e3ea1a..a9b63d0 100644
> --- a/drivers/tty/serial/8250/8250_gsc.c
> +++ b/drivers/tty/serial/8250/8250_gsc.c
> @@ -42,8 +42,7 @@ static int __init serial_init_chip(struct parisc_device *dev)
> * the user what they're missing.
> */
> if (parisc_parent(dev)->id.hw_type != HPHW_IOA)
> - printk(KERN_INFO
> - "Serial: device 0x%llx not configured.\n"
> + pr_info("Serial: device 0x%llx not configured.\n"
> "Enable support for Wax, Lasi, Asp or Dino.\n",
> (unsigned long long)dev->hpa.start);
> return -ENODEV;
> @@ -66,8 +65,7 @@ static int __init serial_init_chip(struct parisc_device *dev)
>
> err = serial8250_register_8250_port(&uart);
> if (err < 0) {
> - printk(KERN_WARNING
> - "serial8250_register_8250_port returned error %d\n", err);
> + pr_warn("serial8250_register_8250_port returned error %d\n", err);
> iounmap(uart.port.membase);
> return err;
> }
> diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/8250/8250_hp300.c
> index 52c43da..85b574896 100644
> --- a/drivers/tty/serial/8250/8250_hp300.c
> +++ b/drivers/tty/serial/8250/8250_hp300.c
> @@ -110,7 +110,7 @@ int __init hp300_setup_serial_console(void)
> /* Check for APCI console */
> if (scode == 256) {
> #ifdef CONFIG_HPAPCI
> - printk(KERN_INFO "Serial console is HP APCI 1\n");
> + pr_info("Serial console is HP APCI 1\n");
>
> port.uartclk = HPAPCI_BAUD_BASE * 16;
> port.mapbase = (FRODO_BASE + FRODO_APCI_OFFSET(1));
> @@ -118,7 +118,7 @@ int __init hp300_setup_serial_console(void)
> port.regshift = 2;
> add_preferred_console("ttyS", port.line, "9600n8");
> #else
> - printk(KERN_WARNING "Serial console is APCI but support is disabled (CONFIG_HPAPCI)!\n");
> + pr_warn("Serial console is APCI but support is disabled (CONFIG_HPAPCI)!\n");
> return 0;
> #endif
> } else {
> @@ -128,7 +128,7 @@ int __init hp300_setup_serial_console(void)
> if (!pa)
> return 0;
>
> - printk(KERN_INFO "Serial console is HP DCA at select code %d\n", scode);
> + pr_info("Serial console is HP DCA at select code %d\n", scode);
>
> port.uartclk = HPDCA_BAUD_BASE * 16;
> port.mapbase = (pa + UART_OFFSET);
> @@ -142,13 +142,13 @@ int __init hp300_setup_serial_console(void)
> if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
> add_preferred_console("ttyS", port.line, "9600n8");
> #else
> - printk(KERN_WARNING "Serial console is DCA but support is disabled (CONFIG_HPDCA)!\n");
> + pr_warn("Serial console is DCA but support is disabled (CONFIG_HPDCA)!\n");
> return 0;
> #endif
> }
>
> if (early_serial_setup(&port) < 0)
> - printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_setup() failed.\n");
> + pr_warn("hp300_setup_serial_console(): early_serial_setup() failed.\n");
> return 0;
> }
> #endif /* CONFIG_SERIAL_8250_CONSOLE */




> @@ -180,7 +180,7 @@ static int hpdca_init_one(struct dio_dev *d,
> line = serial8250_register_8250_port(&uart);
>
> if (line < 0) {
> - printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
> + pr_notice("8250_hp300: register_serial() DCA scode %d"
> " irq %d failed\n", d->scode, uart.port.irq);
> return -ENOMEM;
> }
> @@ -261,7 +261,7 @@ static int __init hp300_8250_init(void)
> line = serial8250_register_8250_port(&uart);
>
> if (line < 0) {
> - printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
> + pr_notice("8250_hp300: register_serial() APCI"
> " %d irq %d failed\n", i, uart.port.irq);

Missed these multi-line strings in your previous patch
"tty: serial: 8250: Fix multi-line strings"


> kfree(port);
> continue;
> diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
> index 2731031..3811c67 100644
> --- a/drivers/tty/serial/8250/8250_pnp.c
> +++ b/drivers/tty/serial/8250/8250_pnp.c
> @@ -465,9 +465,9 @@ serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
> return -ENODEV;
>
> #ifdef SERIAL_DEBUG_PNP
> - printk(KERN_DEBUG
> - "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
> - uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port.iotype);
> + pr_debug("Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
> + uart.port.iobase, uart.port.mapbase,
> + uart.port.irq, uart.port.iotype);

Note that printk(KERN_DEBUG) and pr_debug() have different behavior;
you should note what the behavioral difference is in the changelog.


> #endif
> if (flags & CIR_PORT) {
> uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
> diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
> index 0ec823e..1b2aaf9 100644
> --- a/drivers/tty/serial/8250/8250_port.c
> +++ b/drivers/tty/serial/8250/8250_port.c
> @@ -1222,8 +1222,7 @@ static void autoconfig(struct uart_8250_port *up)
> out_lock:
> spin_unlock_irqrestore(&port->lock, flags);
> if (up->capabilities != old_capabilities) {
> - printk(KERN_WARNING
> - "ttyS%d: detected caps %08x should be %08x\n",
> + pr_warn("ttyS%d: detected caps %08x should be %08x\n",
> serial_index(port), old_capabilities,
> up->capabilities);
> }
>

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