Re: [PATCH] mm: provide a fallback for PAGE_KERNEL_RO for architectures

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On Wed, May 02, 2018 at 03:11:13PM +0000, Luis R. Rodriguez wrote:
On Wed, May 02, 2018 at 12:08:57PM +0200, Geert Uytterhoeven wrote:
Hi Luis,

On Sat, Apr 28, 2018 at 2:15 AM, Luis R. Rodriguez <mcgrof@xxxxxxxxxx> wrote:
Some architectures do not define PAGE_KERNEL_RO, best we can do
for them is to provide a fallback onto PAGE_KERNEL. Remove the
hack from the firmware loader and move it onto the asm-generic
header, and document while at it the affected architectures
which do not have a PAGE_KERNEL_RO:

  o alpha
  o ia64
  o m68k
  o mips
  o sparc64
  o sparc

Blessed-by: 0-day
Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxx>

I believe the "best we can do" is to add the missing definitions for the
architectures where the hardware does support it?

True, but we cannot wait for every architecture to implement a feature to then
such generics upstream, 

Come to think of it your point was the wording. I changed it to not be as misleading.

  Luis
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