Hi Randy!
On Sun, 2023-03-19 at 21:20 +0100, John Paul Adrian Glaubitz wrote:
> On Sun, 2023-03-05 at 20:00 -0800, Randy Dunlap wrote:
> > Fix SUPERH builds that select SYS_SUPPORTS_NUMA but do not select
> > SYS_SUPPORTS_SMP and SMP.
> >
> > kernel/sched/topology.c is only built for CONFIG_SMP and then the NUMA
> > code + data inside topology.c is only built when CONFIG_NUMA is
> > set/enabled, so these arch/sh/ configs need to select SMP and
> > SYS_SUPPORTS_SMP to build the NUMA support.
> >
> > Fixes this build error in multiple SUPERH configs:
> >
> > mm/page_alloc.o: In function `get_page_from_freelist':
> > page_alloc.c:(.text+0x2ca8): undefined reference to `node_reclaim_distance'
> >
> > Fixes: 357d59469c11 ("sh: Tidy up dependencies for SH-2 build.")
> > Fixes: 9109a30e5a54 ("sh: add support for sh7366 processor")
> > Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> > Reported-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> > Cc: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>
> > Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
> > Cc: Rich Felker <dalias@xxxxxxxx>
> > Cc: linux-sh@xxxxxxxxxxxxxxx
> > Cc: stable@xxxxxxxxxxxxxxx
> > ---
> > v2: skipped
> > v3: skipped
> > v4: refresh & resend
> >
> > arch/sh/Kconfig | 4 ++++
> > 1 file changed, 4 insertions(+)
> >
> > diff -- a/arch/sh/Kconfig b/arch/sh/Kconfig
> > --- a/arch/sh/Kconfig
> > +++ b/arch/sh/Kconfig
> > @@ -477,6 +477,8 @@ config CPU_SUBTYPE_SH7722
> > select CPU_SHX2
> > select ARCH_SHMOBILE
> > select ARCH_SPARSEMEM_ENABLE
> > + select SYS_SUPPORTS_SMP
> > + select SMP
> > select SYS_SUPPORTS_NUMA
> > select SYS_SUPPORTS_SH_CMT
> > select PINCTRL
> > @@ -487,6 +489,8 @@ config CPU_SUBTYPE_SH7366
> > select CPU_SHX2
> > select ARCH_SHMOBILE
> > select ARCH_SPARSEMEM_ENABLE
> > + select SYS_SUPPORTS_SMP
> > + select SMP
> > select SYS_SUPPORTS_NUMA
> > select SYS_SUPPORTS_SH_CMT
> >
>
> It seems that we need this change for these configurations as well:
>
> - config CPU_SHX3
> - config CPU_SUBTYPE_SH7785
>
> Although I can trigger a build failure for CPU_SUBTYPE_SH7785 only when
> setting CONFIG_NUMA=y:
>
> CC net/ipv6/addrconf_core.o
> mm/slab.c: In function 'slab_memory_callback':
> mm/slab.c:1127:23: error: implicit declaration of function 'init_cache_node_node'; did you mean 'drain_cache_node_node'? [-Werror=implicit-function-declaration]
> 1127 | ret = init_cache_node_node(nid);
> | ^~~~~~~~~~~~~~~~~~~~
> | drain_cache_node_node
>
> I would expect this error to be reproducible for CPU_SHX3 as well when
> CONFIG_NUMA=y but CONFIG_SMP=n. But for some reason, I am not seeing
> the error then.
Can you make this change for config CPU_SUBTYPE_SH7785 as well?
Then the change should be fine.
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
