On Thu, Feb 4, 2021 at 8:10 PM Anshuman Khandual <anshuman.khand...@arm.com> wrote: > > early_memtest() does not get called from all architectures. Hence enabling > CONFIG_MEMTEST and providing a valid memtest=[1..N] kernel command line > option might not trigger the memory pattern tests as would be expected in > normal circumstances. This situation is misleading. > > The change here prevents the above mentioned problem after introducing a > new config option ARCH_USE_MEMTEST that should be subscribed on platforms > that call early_memtest(), in order to enable the config CONFIG_MEMTEST. > Conversely CONFIG_MEMTEST cannot be enabled on platforms where it would > not be tested anyway. > > Cc: Russell King <li...@armlinux.org.uk> > Cc: Catalin Marinas <catalin.mari...@arm.com> > Cc: Will Deacon <w...@kernel.org> > Cc: Thomas Bogendoerfer <tsbog...@alpha.franken.de> > Cc: Michael Ellerman <m...@ellerman.id.au> > Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> > Cc: Paul Mackerras <pau...@samba.org> > Cc: Thomas Gleixner <t...@linutronix.de> > Cc: Ingo Molnar <mi...@redhat.com> > Cc: Chris Zankel <ch...@zankel.net> > Cc: Max Filippov <jcmvb...@gmail.com> > Cc: linux-arm-ker...@lists.infradead.org > Cc: linux-m...@vger.kernel.org > Cc: linuxppc-dev@lists.ozlabs.org > Cc: linux-xte...@linux-xtensa.org > Cc: linux...@kvack.org > Cc: linux-ker...@vger.kernel.org > Signed-off-by: Anshuman Khandual <anshuman.khand...@arm.com> > --- > This patch applies on v5.11-rc6 and has been tested on arm64 platform. But > it has been just build tested on all other platforms. > > arch/arm/Kconfig | 1 + > arch/arm64/Kconfig | 1 + > arch/mips/Kconfig | 1 + > arch/powerpc/Kconfig | 1 + > arch/x86/Kconfig | 1 + > arch/xtensa/Kconfig | 1 + > lib/Kconfig.debug | 9 ++++++++- > 7 files changed, 14 insertions(+), 1 deletion(-)
Anshuman, entries in arch/*/Konfig files are sorted in alphabetical order, please keep them that way. Reviewed-by: Max Filippov <jcmvb...@gmail.com> -- Thanks. -- Max
