linux-kernel - Re: [PATCH 2/3] thinkpad_acpi: add the ability setting TPACPI_LED

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 17 Jun 2013 21:19:33 -0300
From:	Henrique de Moraes Holschuh <hmh@....eng.br>
To:	Adam Lee <adam.lee@...onical.com>
Cc:	linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
	ibm-acpi-devel@...ts.sourceforge.net,
	Matthew Garrett <matthew.garrett@...ula.com>,
	Henrique de Moraes Holschuh <ibm-acpi@....eng.br>,
	Alex Hung <alex.hung@...onical.com>, Bjorn Mork <bjorn@...k.no>
Subject: Re: [PATCH 2/3] thinkpad_acpi: add the ability setting
 TPACPI_LED_NONE by quirk

On Fri, 07 Jun 2013, Adam Lee wrote:
> Some new Lenovo or ThinkPad laptops don't have EC controllable LEDs,
> their LED quirks are 0. This patch set led_supported=TPACPI_LED_NONE
> when quirk equals 0.
> 
> Signed-off-by: Adam Lee <adam.lee@...onical.com>

Acked-by: Henrique de Moraes Holschuh <hmh@....eng.br>

> ---
>  drivers/platform/x86/thinkpad_acpi.c |   13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
> index bea57ae..2fb1f1c 100644
> --- a/drivers/platform/x86/thinkpad_acpi.c
> +++ b/drivers/platform/x86/thinkpad_acpi.c
> @@ -5327,6 +5327,16 @@ static int __init led_init(struct ibm_init_struct *iibm)
>  
>  	led_supported = led_init_detect_mode();
>  
> +	if (led_supported != TPACPI_LED_NONE) {
> +		useful_leds = tpacpi_check_quirks(led_useful_qtable,
> +				ARRAY_SIZE(led_useful_qtable));
> +
> +		if (!useful_leds) {
> +			led_handle = NULL;
> +			led_supported = TPACPI_LED_NONE;
> +		}
> +	}
> +
>  	vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n",
>  		str_supported(led_supported), led_supported);
>  
> @@ -5340,9 +5350,6 @@ static int __init led_init(struct ibm_init_struct *iibm)
>  		return -ENOMEM;
>  	}
>  
> -	useful_leds = tpacpi_check_quirks(led_useful_qtable,
> -					  ARRAY_SIZE(led_useful_qtable));
> -
>  	for (i = 0; i < TPACPI_LED_NUMLEDS; i++) {
>  		if (!tpacpi_is_led_restricted(i) &&
>  		    test_bit(i, &useful_leds)) {

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/