linux-kernel - Re: [PATCH 1/2] sysfs: remove exports of sysfs_*change

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Message-ID: <CAJZ5v0g0ga=earm-azPe6EwYm=Amt_H5f6aManfS5t=YcHYQ3Q@mail.gmail.com>
Date: Thu, 5 Feb 2026 14:38:56 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: rafael@...nel.org, dakr@...nel.org, driver-core@...ts.linux.dev, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] sysfs: remove exports of sysfs_*change_owner()

On Thu, Feb 5, 2026 at 2:09 PM Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> Both sysfs_change_owner() and sysfs_file_change_owner() are exported to
> modules, but there are no in-kernel module users, so remove the exports
> so that crazy out-of-tree drivers don't get the impression that it is
> safe to call these functions at all.
>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

Reviewed-by: Rafael J. Wysocki (Intel) <rafael@...nel.org>

> ---
>  fs/sysfs/file.c | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
> index 3825e780cc58..a8176c875f55 100644
> --- a/fs/sysfs/file.c
> +++ b/fs/sysfs/file.c
> @@ -689,7 +689,6 @@ int sysfs_file_change_owner(struct kobject *kobj, const char *name, kuid_t kuid,
>
>         return error;
>  }
> -EXPORT_SYMBOL_GPL(sysfs_file_change_owner);
>
>  /**
>   *     sysfs_change_owner - change owner of the given object.
> @@ -736,7 +735,6 @@ int sysfs_change_owner(struct kobject *kobj, kuid_t kuid, kgid_t kgid)
>
>         return 0;
>  }
> -EXPORT_SYMBOL_GPL(sysfs_change_owner);
>
>  /**
>   *     sysfs_emit - scnprintf equivalent, aware of PAGE_SIZE buffer.
> --
> 2.53.0
>