Re: [PATCH] ARM: mm: make use of new memblocks_present() helper

From: Mike Rapoport
Date: Tue Mar 19 2019 - 17:05:28 EST


On Tue, Mar 19, 2019 at 02:50:25PM -0600, Logan Gunthorpe wrote:
>
>
> On 2019-03-19 2:42 p.m., Mike Rapoport wrote:
> > On Tue, Mar 19, 2019 at 12:13:57PM -0600, Logan Gunthorpe wrote:
> >> Cleanup the arm_memory_present() function seeing it's very
> >> similar to other arches.
> >>
> >> The new memblocks_present() helper checks for node ids which the
> >> arm version did not. However, this is equivalent seeing
> >> HAVE_MEMBLOCK_NODE_MAP should be false in this arch and therefore
> >> memblock_get_region_node() should return 0.
> >>
> >> Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
> >> Cc: Russell King <linux@xxxxxxxxxxxxxxx>
> >> Cc: Kees Cook <keescook@xxxxxxxxxxxx>
> >> Cc: Philip Derrin <philip@xxxxxxxxxxx>
> >> Cc: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx>
> >> Cc: Nicolas Pitre <nicolas.pitre@xxxxxxxxxx>
> >
> > Reviewed-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
> >
> > Strangely, I've got a feeling I've already reviewed such patch from a
> > different person...
>
> You're probably referring to [1] which was for arm64 and was redundant
> as my patch for that architecture was already picked up by Catalin.

I've found the patch [1] I mentioned, and it was for ARM.

> I was the person who originally introduced memblocks_present() and I'm
> still hoping to get the cleanup patches for the arm and sh arches to be
> picked up.

AFAIK, For ARM you'd need to put it into Russel's patch tracking system [2].

> Thanks,
>
> Logan
>
> [1]
> https://lore.kernel.org/lkml/20190210093738.30923-1-peng.fan@xxxxxxx/T/#u
>

[1] https://lore.kernel.org/lkml/20190211131602.3294-1-peng.fan@xxxxxxx
[2] https://www.arm.linux.org.uk/developer/patches/

--
Sincerely yours,
Mike.