From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arend van Spriel Subject: Re: [PATCH] mmc: print message if a card supports secure erase/trim Date: Tue, 27 Jan 2015 13:20:03 +0100 Message-ID: <54C78273.7090700@broadcom.com> References: <1422359304-30321-1-git-send-email-holler@ahsoftware.de> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-gw1-out.broadcom.com ([216.31.210.62]:27554 "EHLO mail-gw1-out.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932554AbbA0MUH (ORCPT ); Tue, 27 Jan 2015 07:20:07 -0500 In-Reply-To: <1422359304-30321-1-git-send-email-holler@ahsoftware.de> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Alexander Holler Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Chris Ball , Ulf Hansson On 01/27/15 12:48, Alexander Holler wrote: > It's an interesting detail, so inform the user about it. > > Signed-off-by: Alexander Holler > --- > 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)); > + If you want to expose this info you could also consider doing it in the debugfs folder that is created below. > #ifdef CONFIG_DEBUG_FS > mmc_add_card_debugfs(card); > #endif Regards, Arend [1] http://lxr.free-electrons.com/ident?i=mmc_add_card_debugfs