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Date: Thu, 21 Jan 2016 17:12:42 +0100
From: Ard Biesheuvel <ard.biesheuvel@...aro.org>
To: Matt Fleming <matt@...eblueprint.co.uk>
Cc: "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, 
	kernel-hardening@...ts.openwall.com, Will Deacon <will.deacon@....com>, 
	Catalin Marinas <catalin.marinas@....com>, Mark Rutland <mark.rutland@....com>, 
	Leif Lindholm <leif.lindholm@...aro.org>, Kees Cook <keescook@...omium.org>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Stuart Yoder <stuart.yoder@...escale.com>, 
	Sharma Bhupesh <bhupesh.sharma@...escale.com>, Arnd Bergmann <arnd@...db.de>, 
	Marc Zyngier <marc.zyngier@....com>, Christoffer Dall <christoffer.dall@...aro.org>
Subject: Re: [PATCH v3 18/21] efi: stub: implement efi_get_random_bytes()
 based on EFI_RNG_PROTOCOL

On 21 January 2016 at 16:42, Matt Fleming <matt@...eblueprint.co.uk> wrote:
> On Mon, 11 Jan, at 02:19:12PM, Ard Biesheuvel wrote:
>> This exposes the firmware's implementation of EFI_RNG_PROTOCOL via a new
>> function efi_get_random_bytes().
>>
>> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
>> ---
>>  drivers/firmware/efi/libstub/Makefile  |  2 +-
>>  drivers/firmware/efi/libstub/efistub.h |  3 ++
>>  drivers/firmware/efi/libstub/random.c  | 35 ++++++++++++++++++++
>>  include/linux/efi.h                    |  5 ++-
>>  4 files changed, 43 insertions(+), 2 deletions(-)
>
> [...]
>
>> @@ -0,0 +1,35 @@
>> +/*
>> + * Copyright (C) 2016 Linaro Ltd;  <ard.biesheuvel@...aro.org>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> + *
>> + */
>> +
>> +#include <linux/efi.h>
>> +#include <asm/efi.h>
>> +
>> +#include "efistub.h"
>> +
>> +struct efi_rng_protocol_t {
>> +     efi_status_t (*get_info)(struct efi_rng_protocol_t *,
>> +                              unsigned long *, efi_guid_t *);
>> +     efi_status_t (*get_rng)(struct efi_rng_protocol_t *,
>> +                             efi_guid_t *, unsigned long, u8 *out);
>> +};
>
> This is not the usual naming convention for EFI structs, it should
> either be 'struct efi_rng_protocol' or 'efi_rng_protocol_t'.
>

OK, I will change that.

> But apart from that, this patch looks fine.
>
> Reviewed-by: Matt Fleming <matt@...eblueprint.co.uk>

Thanks

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