linux-kernel - Re: [PATCH v2] let kernfs_name_locked & kernfs_name return size

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Date:	Thu, 11 Feb 2016 19:18:07 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Christian Brauner <christian.brauner@...lbox.org>
Cc:	tj@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] let kernfs_name_locked & kernfs_name return size_t

On Wed, Feb 10, 2016 at 08:07:05PM +0100, Christian Brauner wrote:
> Simple patch that changes the return value of kernfs_name_locked and kernfs_name
> to size_t which alignes these functions with kernfs_path_len which also returns
> size_t.
> 
> Patch was made against for-4.5 branch of Tejun's cgroup tree.  (As per Tejun's
> request, ccing gregkh@...uxfoundation.org and linux-kernel@...r.kernel.org.)
> 
> Changelog
>         20150210: - Change return type of kernfs_name in kernfs.h as well.
>                   - Build tested against Tejun's for-4.5 tree, 4.5-rc2 and
>                     mainline 4.5-rc3.
> 
> *Note*, the changes in kernfs.h change the dummy return value of the static
> inline definition of kernfs_name from -ENOSYS. I changed it to 0 analogous to
> kernfs_path_len. I don't know if this is considered a deal-breaker.

Please don't change that, that's a behavior change, not just a "cleanup
the return type" change.

thanks,

greg k-h