On Mon, Sep 01, 2014 at 10:11:29AM +1000, Ryan Mallon wrote:
>
>
> On 29/08/14 00:15, Sudip Mukherjee wrote:
> > printk replaced with corresponding pr_err, dev_alert, dev_notice and
> > pr_info.
> > fixed two broken user-visible strings used by the corresponding printk
> >
> > Signed-off-by: Sudip Mukherjee <su...@vectorindia.org>
> > ---
> >
> > In the first patch i sent Greg suggested to use dev_err instead of pr_err ,
> > but as later Jiri pointed out in my later patches that uport->dev is having
> > a null check so can not be used , tty_dev is also having a put_device , so
> > back to pr_err.
> >
> > drivers/tty/serial/serial_core.c | 26 +++++++++++++-------------
> > 1 file changed, 13 insertions(+), 13 deletions(-)
> >
>
> > @@ -1975,12 +1976,11 @@ int uart_suspend_port(struct uart_driver *drv,
> > struct uart_port *uport)
> > for (tries = 3; !ops->tx_empty(uport) && tries; tries--)
> > msleep(10);
> > if (!tries)
> > - printk(KERN_ERR "%s%s%s%d: Unable to drain "
> > - "transmitter\n",
> > - uport->dev ? dev_name(uport->dev) : "",
> > - uport->dev ? ": " : "",
> > - drv->dev_name,
> > - drv->tty_driver->name_base + uport->line);
> > + pr_err("%s%s%s%d: Unable to drain transmitter\n",
> > + uport->dev ? dev_name(uport->dev) : "",
> > + uport->dev ? ": " : "",
> > + drv->dev_name,
> > + drv->tty_driver->name_base + uport->line);
>
> dev_printk() prints the value of dev_name() and handles the NULL case,
> so this could be changed to:
>
> dev_err(uport->dev, "%s%d: Unable to drain transmitter\n",
> drv->dev_name,
> drv->tty_driver->name_base + uport->line);
>
> It might also be possible to remove drv->dev_name since dev_printk()
> also prints the driver string, but I don't know if they are equivalent
> in this case.
>
they are not equivalent. drv->dev_name is giving "ttyS" , and the driver string
as printed by dev_printk() is "serial".
So, I guess I will make a v3 of the patch and mention all these in the commit
message.
thanks
sudip
> >
> > if (console_suspend_enabled || !uart_console(uport))
> > ops->shutdown(uport);
> > @@ -2109,7 +2109,7 @@ uart_report_port(struct uart_driver *drv, struct
> > uart_port *port)
> > break;
> > }
> >
> > - printk(KERN_INFO "%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> > + pr_info("%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> > port->dev ? dev_name(port->dev) : "",
> > port->dev ? ": " : "",
> > drv->dev_name,
>
> Same here.
>
> ~Ryan
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