Le 11/12/2021 à 18:53, David Laight a écrit :
> From: Tiezhu Yang
>> Sent: 11 December 2021 03:33
>>
>> v2:
>>-- add copy_to_user_or_kernel() in lib/usercopy.c
>>-- define userbuf as bool type
>
> Instead of having a flag to indicate whether the buffer is user or kernel,
> would it be be
From: Tiezhu Yang
> Sent: 11 December 2021 03:33
>
> v2:
> -- add copy_to_user_or_kernel() in lib/usercopy.c
> -- define userbuf as bool type
Instead of having a flag to indicate whether the buffer is user or kernel,
would it be better to have two separate buffer pointers.
One for a user spac
Le 11/12/2021 à 04:33, Tiezhu Yang a écrit :
> In arch/*/kernel/crash_dump*.c, there exist many similar code
> about copy_oldmem_page(), remove copy_to() in fs/proc/vmcore.c
> and add copy_to_user_or_kernel() in lib/usercopy.c, then we can
> use copy_to_user_or_kernel() to simplify the related co
On Fri, Dec 10, 2021 at 07:54:34PM -0500, Felix Kuehling wrote:
> Do you actually need to restore the exact boot-up mode? If you have the same
> framebuffer memory layout (width, height, bpp, stride) the precise display
> timing doesn't really matter. So we "just" need to switch to a mode that's
