linux-kernel - Re: [PATCH v2] Add missing attributes to EFI variable attribute print out from sysfs

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Message-ID: <CAGTjWtAPKXfA7pOqWEfK2i_HbrtA6_w7+ezZyCo4NG1gBSEhwg@mail.gmail.com>
Date:	Mon, 10 Sep 2012 13:59:18 -0400
From:	Mike Waychison <mikew@...gle.com>
To:	Khalid Aziz <khalid.aziz@...com>, gregkh@...uxfoundation.org
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Tony Luck <tony.luck@...el.com>,
	Matthew Garrett <mjg@...hat.com>,
	Kees Cook <keescook@...omium.org>,
	"gong.chen@...ux.intel.com" <gong.chen@...ux.intel.com>
Subject: Re: [PATCH v2] Add missing attributes to EFI variable attribute print
 out from sysfs

On Mon, Sep 10, 2012 at 1:55 PM, Mike Waychison <mikew@...gle.com> wrote:
> Greg,
>
> Can you please pick this patch up in one of your trees?

Resend using a good email addy for gregkh :)


>
> Thanks!
>
> Mike Waychison
>
> On Fri, Jul 13, 2012 at 1:42 PM, Khalid Aziz <khalid.aziz@...com> wrote:
>> Some of the EFI variable attributes are missing from print out from
>> /sys/firmware/efi/vars/*/attributes. This patch adds those in. It also
>> updates code to use pre-defined constants for masking current value
>> of attributes.
>>
>> Signed-off-by: Khalid Aziz <khalid.aziz@...com>
>> Cc: stable@...r.kernel.org
>> ---
>>  drivers/firmware/efivars.c |   17 ++++++++++++++---
>>  1 file changed, 14 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
>> index 47408e8..d10c987 100644
>> --- a/drivers/firmware/efivars.c
>> +++ b/drivers/firmware/efivars.c
>> @@ -435,12 +435,23 @@ efivar_attr_read(struct efivar_entry *entry, char *buf)
>>         if (status != EFI_SUCCESS)
>>                 return -EIO;
>>
>> -       if (var->Attributes & 0x1)
>> +       if (var->Attributes & EFI_VARIABLE_NON_VOLATILE)
>>                 str += sprintf(str, "EFI_VARIABLE_NON_VOLATILE\n");
>> -       if (var->Attributes & 0x2)
>> +       if (var->Attributes & EFI_VARIABLE_BOOTSERVICE_ACCESS)
>>                 str += sprintf(str, "EFI_VARIABLE_BOOTSERVICE_ACCESS\n");
>> -       if (var->Attributes & 0x4)
>> +       if (var->Attributes & EFI_VARIABLE_RUNTIME_ACCESS)
>>                 str += sprintf(str, "EFI_VARIABLE_RUNTIME_ACCESS\n");
>> +       if (var->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD)
>> +               str += sprintf(str, "EFI_VARIABLE_HARDWARE_ERROR_RECORD\n");
>> +       if (var->Attributes & EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)
>> +               str += sprintf(str,
>> +                       "EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS\n");
>> +       if (var->Attributes &
>> +                       EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)
>> +               str += sprintf(str,
>> +                       "EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS\n");
>> +       if (var->Attributes & EFI_VARIABLE_APPEND_WRITE)
>> +               str += sprintf(str, "EFI_VARIABLE_APPEND_WRITE\n");
>>         return str - buf;
>>  }
>>
>> --
>> 1.7.9.5
>>
>> --
>> Khalid Aziz
>> khalid.aziz@...com
--
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