Re: [PATCH v2 2/2] drm: Move nomodeset kernel parameter to the DRM subsystem

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On 11/5/21 10:00, Thomas Zimmermann wrote:

[snip]

>> +
>> +static int __init disable_modeset(char *str)
>> +{
>> +	drm_nomodeset = true;
>> +
>> +	pr_warn("You have booted with nomodeset. This means your GPU drivers are DISABLED\n");
>> +	pr_warn("Any video related functionality will be severely degraded, and you may not even be able to suspend the system properly\n");
>> +	pr_warn("Unless you actually understand what nomodeset does, you should reboot without enabling it\n");
> 
> I'd update this text to be less sensational.
>

This is indeed quite sensational. But think we can do it as a follow-up patch.

Since we will have to stick with nomodeset for backward compatibility, I was
planning to add documentation to explain what this parameter is about and what
is the actual effect of setting it.

So I think we can change this as a part of that patch-set.
 
>> +
>> +	return 1;
>> +}
>> +
>> +/* Disable kernel modesetting */
>> +__setup("nomodeset", disable_modeset);
>> diff --git a/drivers/gpu/drm/i915/i915_module.c b/drivers/gpu/drm/i915/i915_module.c
>> index 45cb3e540eff..c890c1ca20c4 100644
>> --- a/drivers/gpu/drm/i915/i915_module.c
>> +++ b/drivers/gpu/drm/i915/i915_module.c
>> @@ -4,8 +4,6 @@
>>    * Copyright © 2021 Intel Corporation
>>    */
>>   
>> -#include <linux/console.h>
>> -
>
> These changes should be in patch 1?
>

Yes, I forgot to move these when changed the order of the patches.

Best regards, -- 
Javier Martinez Canillas
Linux Engineering
Red Hat




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