Message-ID: <899235.1652392051@warthog.procyon.org.uk>
Date:   Thu, 12 May 2022 22:47:31 +0100
From:   David Howells <dhowells@...hat.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     Alexei Starovoitov <ast@...nel.org>, alsa-devel@...a-project.org,
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Subject: Re: [PATCH 00/32] Introduce flexible array struct memcpy() helpers


Kees Cook <keescook@...omium.org> wrote:

> I'm happy to also point out that the conversions (patches 5+) are actually
> a net reduction in lines of code:
>  49 files changed, 154 insertions(+), 244 deletions(-)

That doesn't mean that it's actually code that's clearer to read.  I would say
that it's actually less clear.  In a bunch of places, you've done something
like:

-	e = kmalloc(...);
-	if (!e)
+	if (__mem_to_flex_dup(&e, ...))

The problem is that, to me at least, it looks like:

-	e = kmalloc(...);
-	if (kmalloc failed)
+	if (__mem_to_flex_dup(&e, ...) succeeded)

David

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