Re: [PATCH v2] PM / OPP: fix debug/error messages in dev_pm_opp_of_get_sharing_cpus()

From: Viresh Kumar
Date: Thu Oct 20 2016 - 03:01:05 EST


On 20-10-16, 15:59, Masahiro Yamada wrote:
> These log messages are wrong because _of_get_opp_desc_node() returns
> an operating-points-v2 node.
>
> Commit a6eed752f5fb ("PM / OPP: passing NULL to PTR_ERR()") fixed
> static checker warnings, and reworded the messages at the same time
> (but the latter was not mentioned in the git-log).
>
> Restore the correct messages, dropping __func__. We can grep the
> message string, so the function name would not carry much value.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> ---
>
> Changes in v2:
> - Reword git-log slightly
> comments -> log messages
>
> drivers/base/power/opp/of.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/base/power/opp/of.c b/drivers/base/power/opp/of.c
> index 6480137..92e6d53 100644
> --- a/drivers/base/power/opp/of.c
> +++ b/drivers/base/power/opp/of.c
> @@ -562,7 +562,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
> /* Get OPP descriptor node */
> np = _of_get_opp_desc_node(cpu_dev);
> if (!np) {
> - dev_dbg(cpu_dev, "%s: Couldn't find cpu_dev node.\n", __func__);
> + dev_dbg(cpu_dev, "Couldn't find opp node.\n");
> return -ENOENT;
> }
>
> @@ -587,8 +587,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
> /* Get OPP descriptor node */
> tmp_np = _of_get_opp_desc_node(tcpu_dev);
> if (!tmp_np) {
> - dev_err(tcpu_dev, "%s: Couldn't find tcpu_dev node.\n",
> - __func__);
> + dev_err(tcpu_dev, "Couldn't find opp node.\n");

The error messages are very generic and it can get tricky to grep for them in
the source code..

I would prefer keeping function name in the print message.

--
viresh