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From: Sascha Hauer <sha@pengutronix.de>
To: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] driver: add CONFIG_DEBUG_PROBES
Date: Mon, 28 Jun 2021 22:37:51 +0200
Message-ID: <20210628203751.GS9782@pengutronix.de> (raw)
In-Reply-To: <20210628070345.13838-1-a.fatoum@pengutronix.de>

On Mon, Jun 28, 2021 at 09:03:45AM +0200, Ahmad Fatoum wrote:
> CONFIG_DEBUG_INITCALLS can be very useful to roughly pinpoint what
> causes barebox to hang. With deep probe, most probes run at the same
> initcall level making the debug option much less useful.
> 
> Add a new CONFIG_DEBUG_PROBES that will instead log whenever a probe is
> invoked. The text's horizontal alignment is increased with each
> recursive probe making the option suitable for debugging some deep probe
> issues as well.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
>  common/Kconfig        |  4 ++++
>  drivers/base/driver.c | 17 +++++++++++++++--
>  2 files changed, 19 insertions(+), 2 deletions(-)

Nice. I applied with one change I hope you're ok with:

> +	depth++;
> +
> +	pr_report_probe("%*sprobe-> %s\n", depth, "", dev_name(dev));

I changed the indentation to 4 here.

Sascha

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  reply	other threads:[~2021-06-28 20:39 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-28  7:03 Ahmad Fatoum
2021-06-28 20:37 ` Sascha Hauer [this message]
2021-06-29  6:39   ` Ahmad Fatoum

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