[Intel-gfx] [PATCH] drm/i915: Set the access right of kernel param "i915.enable_gvt" to read-only.

[Zhi Wang]

Thanks! :P. Welcome back.

On 07/12/16 18:50, Joonas Lahtinen wrote:
> On ma, 2016-06-20 at 08:17 -0400, Zhi Wang wrote:
>> The access right of kernel param "i915.enable_gvt" should be read-only as
>> it only applies during module load (and is not *runtime* writable).
>>
>> Cc: Chris Wilson <chris at chris-wilson.co.uk>
>
> Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
>
> Maybe also add,
>
> Suggested-by: Chris Wilson <chris at chris-wilson.co.uk>
>
>> Signed-off-by: Zhi Wang <zhi.a.wang at intel.com>
>> ---
>>   drivers/gpu/drm/i915/i915_params.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
>> index 7effe68..8b13bfa 100644
>> --- a/drivers/gpu/drm/i915/i915_params.c
>> +++ b/drivers/gpu/drm/i915/i915_params.c
>> @@ -224,6 +224,6 @@ module_param_named(enable_dpcd_backlight, i915.enable_dpcd_backlight, bool, 0600
>>   MODULE_PARM_DESC(enable_dpcd_backlight,
>>   	"Enable support for DPCD backlight control (default:false)");
>>
>> -module_param_named(enable_gvt, i915.enable_gvt, bool, 0600);
>> +module_param_named(enable_gvt, i915.enable_gvt, bool, 0400);
>>   MODULE_PARM_DESC(enable_gvt,
>>   	"Enable support for Intel GVT-g graphics virtualization host support(default:false)");