From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Sascha Hauer <sha@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] driver: add CONFIG_DEBUG_PROBES
Date: Tue, 29 Jun 2021 08:39:09 +0200 [thread overview]
Message-ID: <01c3e883-7041-678e-3e65-3e645b51b508@pengutronix.de> (raw)
In-Reply-To: <20210628203751.GS9782@pengutronix.de>
On 28.06.21 22:37, Sascha Hauer wrote:
> 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.
Fine by me.
Cheers,
Ahmad
>
> Sascha
>
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prev parent reply other threads:[~2021-06-29 6:40 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
2021-06-29 6:39 ` Ahmad Fatoum [this message]
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