linux-kernel - Re: [PATCH v2.1 1/7] crypto: GnuPG based MPI lib

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Message-ID: <CALLzPKZ63vp9W_p1t1JOCui+aLRyN6W0t9O-tJ40xKxBef0QPA@mail.gmail.com>
Date:	Mon, 17 Oct 2011 12:11:37 +0300
From:	"Kasatkin, Dmitry" <dmitry.kasatkin@...el.com>
To:	James Morris <jmorris@...ei.org>
Cc:	linux-security-module@...r.kernel.org,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
	zohar@...ux.vnet.ibm.com, dhowells@...hat.com,
	herbert@...dor.hengli.com.au
Subject: Re: [PATCH v2.1 1/7] crypto: GnuPG based MPI lib - source files (part 1)

>From Kernel Docbook

    Similar to <function>EXPORT_SYMBOL()</function> except that the
    symbols exported by <function>EXPORT_SYMBOL_GPL()</function> can
    only be seen by modules with a
    <function>MODULE_LICENSE()</function> that specifies a GPL
    compatible license.  It implies that the function is considered
    an internal implementation issue, and not really an interface.

"not really an interface"....

Should it really be EXPORT_SYMBOL_GPL?

- Dmitry

On Sat, Oct 15, 2011 at 3:28 AM, James Morris <jmorris@...ei.org> wrote:
> On Fri, 14 Oct 2011, Dmitry Kasatkin wrote:
>
>> +MPI mpi_alloc(unsigned nlimbs)
>> +{
>> +     MPI a;
>> +
>> +     a = (MPI) kmalloc(sizeof *a, GFP_KERNEL);
>
> Generally, typedef structs are frowned upon in the kernel.  I'd prefer to
> see this (and any others) changed to a normal type.
>
> Also, kmalloc return values do not need to be cast, they're void *.
>
>> +EXPORT_SYMBOL(mpi_alloc);
>
> New interfaces should be EXPORT_SYMBOL_GPL.
>
>
> --
> James Morris
> <jmorris@...ei.org>
>
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