linux-kernel - Re: [PATCH] mm/memblock: validate the creation of debugfs files

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20150815005243.aab83953.akpm@linux-foundation.org>
Date:	Sat, 15 Aug 2015 00:52:43 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Alexander Kuleshov <kuleshovmail@...il.com>
Cc:	Tony Luck <tony.luck@...el.com>, Pekka Enberg <penberg@...nel.org>,
	Mel Gorman <mgorman@...e.de>, Baoquan He <bhe@...hat.com>,
	Tang Chen <tangchen@...fujitsu.com>, Robin Holt <holt@....com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] mm/memblock: validate the creation of debugfs files

On Sat, 15 Aug 2015 13:48:50 +0600 Alexander Kuleshov <kuleshovmail@...il.com> wrote:

> On 08-15-15, Andrew Morton wrote:
> > Yes, I agree that if memblock's debugfs_create_file() fails, we want to
> > know about it because something needs fixing.  But that's true of
> > all(?) debugfs_create_file callsites, so it's a bit silly to add
> > warnings to them all.  Why not put the warning into
> > debugfs_create_file() itself?
> 
> Good idea, but there are already some debugfs_create_file calls with checks and
> warning, if these checks failed. I don't know how many, but I saw it.
> Double warning is not good too.

Please ponder the sentence you deleted.  "Or add a
debugfs_create_file_warn() wrapper".
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/