netdev - Re: [PATCH v15 5/9] ref_tracker: allow pr_ostream() to print directly to a seq

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Message-ID: <61c653aa5f298ded89f35eef76374b3138d17b02.camel@kernel.org>
Date: Mon, 23 Jun 2025 13:28:17 -0400
From: Jeff Layton <jlayton@...nel.org>
To: Krzysztof Karas <krzysztof.karas@...el.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, "David S. Miller"	
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski	
 <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Simon Horman	
 <horms@...nel.org>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann
 <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,  Simona Vetter
 <simona@...ll.ch>, Jani Nikula <jani.nikula@...ux.intel.com>, Joonas
 Lahtinen	 <joonas.lahtinen@...ux.intel.com>, Rodrigo Vivi
 <rodrigo.vivi@...el.com>,  Tvrtko Ursulin <tursulin@...ulin.net>, Kuniyuki
 Iwashima <kuniyu@...zon.com>, Qasim Ijaz <qasdev00@...il.com>,  Nathan
 Chancellor	 <nathan@...nel.org>, Andrew Lunn <andrew@...n.ch>,
 linux-kernel@...r.kernel.org, 	netdev@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, 	intel-gfx@...ts.freedesktop.org
Subject: Re: [PATCH v15 5/9] ref_tracker: allow pr_ostream() to print
 directly to a seq_file

On Mon, 2025-06-23 at 14:01 +0000, Krzysztof Karas wrote:
> Hi Jeff,
> 
> [...]
> > +static __maybe_unused int
> > +ref_tracker_dir_seq_print(struct ref_tracker_dir *dir, struct seq_file *seq)
> > +{
> > +	struct ostream os = { .func = pr_ostream_seq,
> > +			      .prefix = "",
> This is also a "ref_tracker_*" function, so maybe use the same
> prefix as in other functions? I mean .prefix = "ref_tracker:".
> Unless, you have a reason for leaving it empty ;)
> 

I have a reason to leave it empty.

That is the prefix for each line that gets printed by the pr_ostream()
call. This one is for the lines that go to the debugfs files. I think
it will be redundant to prepend every line in these files with
"ref_tracker: ".
-- 
Jeff Layton <jlayton@...nel.org>