linux-kernel - Re: [PATCH] platform/surface: aggregator: Fix event disable function

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Message-ID: <8e6330ca-a2ee-acd4-b5d7-0f7a828d132c@redhat.com>
Date:   Thu, 3 Jun 2021 13:07:09 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Maximilian Luz <luzmaximilian@...il.com>
Cc:     Mark Gross <mgross@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] platform/surface: aggregator: Fix event disable function

Hi,

On 6/3/21 2:06 AM, Maximilian Luz wrote:
> Disabling events silently fails due to the wrong command ID being used.
> Instead of the command ID for the disable call, the command ID for the
> enable call was being used. This causes the disable call to enable the
> event instead. As the event is already enabled when we call this
> function, the EC silently drops this command and does nothing.
> 
> Use the correct command ID for disabling the event to fix this.
> 
> Fixes: c167b9c7e3d6 ("platform/surface: Add Surface Aggregator subsystem")
> Signed-off-by: Maximilian Luz <luzmaximilian@...il.com>

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

I'll also add this to the fixes branch, so that it gets included
in my next pull-req to Linus for 5.13.

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans

> ---
>  drivers/platform/surface/aggregator/controller.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/surface/aggregator/controller.c b/drivers/platform/surface/aggregator/controller.c
> index 8a70df60142c..a06964aa96e7 100644
> --- a/drivers/platform/surface/aggregator/controller.c
> +++ b/drivers/platform/surface/aggregator/controller.c
> @@ -1907,7 +1907,7 @@ static int ssam_ssh_event_disable(struct ssam_controller *ctrl,
>  {
>  	int status;
>  
> -	status = __ssam_ssh_event_request(ctrl, reg, reg.cid_enable, id, flags);
> +	status = __ssam_ssh_event_request(ctrl, reg, reg.cid_disable, id, flags);
>  
>  	if (status < 0 && status != -EINVAL) {
>  		ssam_err(ctrl,
>