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From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Gabor Juhos <j4g8y7@gmail.com>
Cc: Richard Weinberger <richard@nod.at>,
	 Vignesh Raghavendra <vigneshr@ti.com>,
	 linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org
Subject: Re: [PATCH] mtd: expose ooblayout information via sysfs
Date: Thu, 07 Aug 2025 09:50:57 +0200	[thread overview]
Message-ID: <878qjvefj2.fsf@bootlin.com> (raw)
In-Reply-To: <25dcf103-3cd3-400a-b402-cbb5f23006c9@gmail.com> (Gabor Juhos's message of "Wed, 6 Aug 2025 20:40:21 +0200")

Hi Gabor,

>> I would prefer a debugfs entry, as this is mostly focusing on
>> development and debugging purposes. sysfs has a stable API, which makes
>> it a less relevant place in this case.
>
> Sorry, it seems that I misunderstood the ABI documentation.
>
> Since the 'sysfs-class-mtd' file is under the 'testing' directory
> within

It is indeed unclear. I'm not sure myself what that exactly means TBH,
but it's been there for a long time and can for sure be considered
stable. Sysfs in general is not for debugging.

> 'Documentation/ABI' I thought that it can be extended by attributes used for
> testing purposes. Additionally, the 'oobavail' and 'oobsize' attributes are
> exposed via sysfs, so it seemed to be a logical place for the new oob related ones.
>
> Nevertheless, I will check what can I do with the debugfs based
> approach.

Sure, thanks!

Miquèl

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Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

WARNING: multiple messages have this Message-ID (diff)
From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Gabor Juhos <j4g8y7@gmail.com>
Cc: Richard Weinberger <richard@nod.at>,
	 Vignesh Raghavendra <vigneshr@ti.com>,
	 linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org
Subject: Re: [PATCH] mtd: expose ooblayout information via sysfs
Date: Thu, 07 Aug 2025 09:50:57 +0200	[thread overview]
Message-ID: <878qjvefj2.fsf@bootlin.com> (raw)
In-Reply-To: <25dcf103-3cd3-400a-b402-cbb5f23006c9@gmail.com> (Gabor Juhos's message of "Wed, 6 Aug 2025 20:40:21 +0200")

Hi Gabor,

>> I would prefer a debugfs entry, as this is mostly focusing on
>> development and debugging purposes. sysfs has a stable API, which makes
>> it a less relevant place in this case.
>
> Sorry, it seems that I misunderstood the ABI documentation.
>
> Since the 'sysfs-class-mtd' file is under the 'testing' directory
> within

It is indeed unclear. I'm not sure myself what that exactly means TBH,
but it's been there for a long time and can for sure be considered
stable. Sysfs in general is not for debugging.

> 'Documentation/ABI' I thought that it can be extended by attributes used for
> testing purposes. Additionally, the 'oobavail' and 'oobsize' attributes are
> exposed via sysfs, so it seemed to be a logical place for the new oob related ones.
>
> Nevertheless, I will check what can I do with the debugfs based
> approach.

Sure, thanks!

Miquèl

  reply	other threads:[~2025-08-07  7:52 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-19 12:06 [PATCH] mtd: expose ooblayout information via sysfs Gabor Juhos
2025-07-19 12:06 ` Gabor Juhos
2025-08-06  6:57 ` Miquel Raynal
2025-08-06  6:57   ` Miquel Raynal
2025-08-06 18:40   ` Gabor Juhos
2025-08-06 18:40     ` Gabor Juhos
2025-08-07  7:50     ` Miquel Raynal [this message]
2025-08-07  7:50       ` Miquel Raynal

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