Re: [PATCH] video:uvesafb: Fix oops that uvesafb try to execute NX-protectedpage

From: Florian Tobias Schandinat
Date: Sat Mar 31 2012 - 17:31:36 EST

On 03/27/2012 01:32 PM, Alan Cox wrote:
> On Tue, 27 Mar 2012 18:01:36 +0800
> Wang YanQing <udknight@xxxxxxxxx> wrote:
>> Ok! I try to check pcibios_enabled first, but get some opposition by Alan Cox,
>> but I want to make thing work and fix the oops, so I choice the simple way to
>> check the (__supported_pte_mask & _PAGE_NX) instead of to check this variable plus
>> pci kernel boot parameter, pci mmconfig works or not, and more, and more. It is not
>> the best method, but it works and maybe all will feel happy.

Wang, could you please write a better commit message, at least you could
include the oops that your patch fixes.

> Apart from adding a helper in the includes for the arch code of
> static inline is_nx_enabled(void)
> {
> return !!(__supported_pte_mask & _PAGE_NX);
> }

As this check is already done in a few other places I think there should
be a separate patch that adds this helper and ports all existing code to
use it.

So, does anyone have any objection against me taking this patch as is?


Florian Tobias Schandinat
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