Re: [PATCH] clocksource: Convert to using %pOF instead of full_name

From: Marc Gonzalez
Date: Wed Jul 19 2017 - 04:55:34 EST


On 18/07/2017 23:42, Rob Herring wrote:

> Now that we have a custom printf format specifier, convert users of
> full_name to use %pOF instead. This is preparation to remove storing
> of the full path string for each node.

Nice. For my own reference:
http://elixir.free-electrons.com/linux/v4.13-rc1/source/Documentation/printk-formats.txt#L349

About removing the full path. Does this mean that ultimately
%pOF will print just the name? And the 'f' spec will disappear?

Is this done to save memory?

> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
> Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Marc Gonzalez <marc_gonzalez@xxxxxxxxxxxxxxxx>
> Cc: Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx>
> Cc: Alexandre Torgue <alexandre.torgue@xxxxxx>
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> ---
> drivers/clocksource/tango_xtal.c | 6 +++---
> drivers/clocksource/timer-of.c | 11 +++++------
> drivers/clocksource/timer-probe.c | 3 +--
> drivers/clocksource/timer-stm32.c | 8 ++++----
> 4 files changed, 13 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/clocksource/tango_xtal.c b/drivers/clocksource/tango_xtal.c
> index c4e1c2e6046f..6a8d9838ce33 100644
> --- a/drivers/clocksource/tango_xtal.c
> +++ b/drivers/clocksource/tango_xtal.c
> @@ -26,13 +26,13 @@ static int __init tango_clocksource_init(struct device_node *np)
>
> xtal_in_cnt = of_iomap(np, 0);
> if (xtal_in_cnt == NULL) {
> - pr_err("%s: invalid address\n", np->full_name);
> + pr_err("%pOF: invalid address\n", np);
> return -ENXIO;
> }
>
> clk = of_clk_get(np, 0);
> if (IS_ERR(clk)) {
> - pr_err("%s: invalid clock\n", np->full_name);
> + pr_err("%pOF: invalid clock\n", np);
> return PTR_ERR(clk);
> }
>
> @@ -43,7 +43,7 @@ static int __init tango_clocksource_init(struct device_node *np)
> ret = clocksource_mmio_init(xtal_in_cnt, "tango-xtal", xtal_freq, 350,
> 32, clocksource_mmio_readl_up);
> if (ret) {
> - pr_err("%s: registration failed\n", np->full_name);
> + pr_err("%pOF: registration failed\n", np);
> return ret;
> }

For drivers/clocksource/tango_xtal.c

Acked-by: Marc Gonzalez <marc_gonzalez@xxxxxxxxxxxxxxxx>

Regards.