linux-kernel - Re: [PATCH] mmc: print message if a card supports secure erase/trim

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Date:	Tue, 27 Jan 2015 13:06:53 +0100
From:	Richard Weinberger <richard@....at>
To:	Alexander Holler <holler@...oftware.de>
CC:	linux-mmc@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Chris Ball <chris@...ntf.net>,
	Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [PATCH] mmc: print message if a card supports secure erase/trim

Am 27.01.2015 um 13:02 schrieb Alexander Holler:
> Am 27.01.2015 um 12:55 schrieb Richard Weinberger:
>> On Tue, Jan 27, 2015 at 12:48 PM, Alexander Holler <holler@...oftware.de> wrote:
>>> It's an interesting detail, so inform the user about it.
>>>
>>> Signed-off-by: Alexander Holler <holler@...oftware.de>
>>> ---
>>>   drivers/mmc/core/bus.c | 4 ++++
>>>   1 file changed, 4 insertions(+)
>>>
>>> diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
>>> index 8a1f124..4a60028 100644
>>> --- a/drivers/mmc/core/bus.c
>>> +++ b/drivers/mmc/core/bus.c
>>> @@ -347,6 +347,10 @@ int mmc_add_card(struct mmc_card *card)
>>>                          uhs_bus_speed_mode, type, card->rca);
>>>          }
>>>
>>> +       if (mmc_can_secure_erase_trim(card))
>>> +               pr_info("%s: card supports secure erase/trim\n",
>>> +                       mmc_hostname(card->host));
>>> +
>>
>> Please make this a sysfs attribute.
>> Exposing such properties as log messages is horrible.
> 
> Look at the source at the message which is printed just before and decide which one you find more informational / useful.

-ENOPARSE

Thanks,
//richard
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