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	Mon, 07 Jul 2025 19:35:21 +0000
Date: Mon, 7 Jul 2025 20:35:21 +0100
From: Al Viro <viro@zeniv.linux.org.uk>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Alejandro Colomar <alx@kernel.org>, linux-mm@kvack.org,
	linux-hardening@vger.kernel.org, Kees Cook <kees@kernel.org>,
	Christopher Bazley <chris.bazley.wg14@gmail.com>,
	shadow <~hallyn/shadow@lists.sr.ht>, linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	kasan-dev@googlegroups.com, Dmitry Vyukov <dvyukov@google.com>,
	Alexander Potapenko <glider@google.com>,
	Marco Elver <elver@google.com>, Christoph Lameter <cl@linux.com>,
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	Vlastimil Babka <vbabka@suse.cz>,
	Roman Gushchin <roman.gushchin@linux.dev>,
	Harry Yoo <harry.yoo@oracle.com>,
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	Sven Schnelle <svens@linux.ibm.com>,
	Heiko Carstens <hca@linux.ibm.com>,
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	Lee Schermerhorn <lee.schermerhorn@hp.com>,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	Hyeonggon Yoo <42.hyeyoo@gmail.com>, Chao Yu <chao.yu@oppo.com>
Subject: Re: [RFC v3 3/7] mm: Use seprintf() instead of less ergonomic APIs
Message-ID: <20250707193521.GI1880847@ZenIV>
References: <cover.1751862634.git.alx@kernel.org>
 <033bf00f1fcf808245ae150346019aa7b997ea11.1751862634.git.alx@kernel.org>
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On Mon, Jul 07, 2025 at 12:17:11PM -0700, Linus Torvalds wrote:

> and we do have something like that in 'struct seq_buf'.  I'm not
> convinced that's the optimal interface, but I think it's *better*.
> Because it does both encapsulate a proper "this is my buffer" type,
> and has a proper "this is a buffer operation" function name.
> 
> So I'd *much* rather people would try to convert their uses to things
> like that, than add random letter combinations.

Lifting struct membuf out of include/linux/regset.h, perhaps, and
adding printf to the family?