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From: Florian Weimer <fweimer@redhat.com>
To: Christian Brauner <brauner@kernel.org>
Cc: linux-fsdevel@vger.kernel.org,  Jeff Layton <jlayton@kernel.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	 Amir Goldstein <amir73il@gmail.com>,
	 Josef Bacik <josef@toxicpanda.com>,  Jan Kara <jack@suse.cz>,
	 Aleksa Sarai <cyphar@cyphar.com>,
	linux-api@vger.kernel.org, rudi@heitbaum.com
Subject: Re: [PATCH 1/2] mount: add OPEN_TREE_NAMESPACE
Date: Tue, 24 Feb 2026 12:23:33 +0100	[thread overview]
Message-ID: <lhuecmaz8p6.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <20251229-work-empty-namespace-v1-1-bfb24c7b061f@kernel.org> (Christian Brauner's message of "Mon, 29 Dec 2025 14:03:24 +0100")

* Christian Brauner:

> diff --git a/include/uapi/linux/mount.h b/include/uapi/linux/mount.h
> index 5d3f8c9e3a62..acbc22241c9c 100644
> --- a/include/uapi/linux/mount.h
> +++ b/include/uapi/linux/mount.h
> @@ -61,7 +61,8 @@
>  /*
>   * open_tree() flags.
>   */
> -#define OPEN_TREE_CLONE		1		/* Clone the target tree and attach the clone */
> +#define OPEN_TREE_CLONE		(1 << 0)	/* Clone the target tree and attach the clone */

This change causes pointless -Werror=undef errors in projects that have
settled on the old definition.

Reported here:

  Bug 33921 - Building with Linux-7.0-rc1 errors on OPEN_TREE_CLONE
  <https://sourceware.org/bugzilla/show_bug.cgi?id=33921>

Thanks,
Florian


  parent reply	other threads:[~2026-02-24 11:23 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-29 13:03 [PATCH 0/2] mount: add OPEN_TREE_NAMESPACE Christian Brauner
2025-12-29 13:03 ` [PATCH 1/2] " Christian Brauner
2026-01-08 22:37   ` Aleksa Sarai
2026-01-12 13:00     ` Christian Brauner
2026-01-12 13:37       ` Aleksa Sarai
2026-02-24 11:23   ` Florian Weimer [this message]
2026-02-24 12:05     ` Christian Brauner
2026-02-24 13:30       ` Florian Weimer
2026-02-24 14:33         ` Christian Brauner
2026-02-26 11:54           ` Jan Kara
2026-03-02 10:15           ` Florian Weimer
2025-12-29 13:03 ` [PATCH 2/2] selftests/open_tree: add OPEN_TREE_NAMESPACE tests Christian Brauner
2025-12-29 15:24 ` [PATCH 0/2] mount: add OPEN_TREE_NAMESPACE Jeff Layton
2026-01-05 20:29 ` Jeff Layton
2026-01-06 22:47   ` Christian Brauner
2026-01-19 17:11 ` Askar Safin
2026-01-19 19:05   ` Andy Lutomirski
2026-01-19 22:21     ` Jeff Layton
2026-01-21 10:20       ` Christian Brauner
2026-01-21 18:00       ` Andy Lutomirski
2026-01-23 10:23         ` Christian Brauner
2026-01-24 10:13           ` Askar Safin
2026-01-21 19:56       ` Rob Landley
2026-02-19 23:42         ` Askar Safin

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