linux-kernel - Re: [PATCH] mm: Add kvfree_sensitive() for freeing sensitive data objects

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Message-ID: <fc62bbbe692f695e9231e0007715d80d164f7540.camel@perches.com>
Date:   Mon, 06 Apr 2020 10:46:17 -0700
From:   Joe Perches <joe@...ches.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     David Howells <dhowells@...hat.com>,
        Waiman Long <longman@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Linux-MM <linux-mm@...ck.org>, keyrings@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: Add kvfree_sensitive() for freeing sensitive data
 objects

On Mon, 2020-04-06 at 10:33 -0700, Linus Torvalds wrote:
> On Mon, Apr 6, 2020 at 10:22 AM Joe Perches <joe@...ches.com> wrote:
> > API function naming symmetry is good.
[]
> See? There is no API symmetry. There is only a small and immaterial
> implementation detail.

The symmetry to an API is the existing 300+
kzfree calls.

Renaming all the kzfree calls would be fine.

Consolidating all the various types of kfree
to just kfree might be even better.

cheers, Joe