linux-doc.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Aaron Thompson <dev@aaront.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Danilo Krummrich <dakr@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Aaron Thompson <dev@aaront.org>
Subject: [PATCH 0/2] debugfs: Remove broken no-mount mode
Date: Thu, 20 Nov 2025 10:26:31 +0000	[thread overview]
Message-ID: <20251120102222.18371-1-dev@null.aaront.org> (raw)

Hi all,

This patch removes the debugfs no-mount mode because it hasn't worked as
intended for several years. When I noticed that it wasn't working, I first
started coding a fix, which is straightforward. But after looking into the
history, it seems pretty clear that this mode isn't being used, so I think it
makes more sense to remove it.

The code could be made a tiny bit simpler and more consistent if we change the
off mode error code from -EPERM to -ENOENT. That would make the off case and the
uninitialized case always the same. The documentation for the off mode
specifically says that the error code is -EPERM however, so I stuck with that
for now.

Thanks!

Aaron Thompson (2):
  debugfs: Remove redundant access mode checks
  debugfs: Remove broken no-mount mode

 .../admin-guide/kernel-parameters.txt         |  6 +---
 fs/debugfs/inode.c                            | 36 ++++++-------------
 fs/debugfs/internal.h                         | 13 -------
 lib/Kconfig.debug                             |  9 +----
 4 files changed, 13 insertions(+), 51 deletions(-)


base-commit: 6a23ae0a96a600d1d12557add110e0bb6e32730c
-- 
2.47.3


             reply	other threads:[~2025-11-20 10:32 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-20 10:26 Aaron Thompson [this message]
2025-11-20 10:26 ` [PATCH 1/2] debugfs: Remove redundant access mode checks Aaron Thompson
2025-11-20 10:26 ` [PATCH 2/2] debugfs: Remove broken no-mount mode Aaron Thompson
2025-12-01 17:15   ` Mark Brown
2025-12-01 22:16     ` Aaron Thompson
2025-12-02  5:19       ` Greg Kroah-Hartman
2025-12-02  6:01       ` Chen-Yu Tsai

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20251120102222.18371-1-dev@null.aaront.org \
    --to=dev@aaront.org \
    --cc=akpm@linux-foundation.org \
    --cc=corbet@lwn.net \
    --cc=dakr@kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=rafael@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).