linux-kernel - [PATCH 1/3] arm: remove ARCH_SELECT_MEMORY

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Message-Id: <1556740577-4140-2-git-send-email-rppt@linux.ibm.com>
Date:   Wed,  1 May 2019 22:56:15 +0300
From:   Mike Rapoport <rppt@...ux.ibm.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Christoph Hellwig <hch@...radead.org>,
        "David S. Miller" <davem@...emloft.net>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, linux-s390@...r.kernel.org,
        sparclinux@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Mike Rapoport <rppt@...ux.ibm.com>
Subject: [PATCH 1/3] arm: remove ARCH_SELECT_MEMORY_MODEL

The ARCH_SELECT_MEMORY_MODEL in arch/arm/Kconfig is enabled only when
ARCH_SPARSEMEM_ENABLE=y. But in this case, ARCH_SPARSEMEM_DEFAULT is also
enabled and this in turn enables SPARSEMEM_MANUAL.

Since there is no definition of ARCH_FLATMEM_ENABLE in arch/arm/Kconfig,
SPARSEMEM_MANUAL is the only enabled memory model, hence the final
selection will evaluate to SPARSEMEM=y.

Since ARCH_SPARSEMEM_ENABLE is set to 'y' only by several sub-arch
configurations, the default for must sub-arches would be the falback to
FLATMEM regardless of ARCH_SELECT_MEMORY_MODEL.

Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
---
 arch/arm/Kconfig | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9aed25a..25a69a3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1592,9 +1592,6 @@ config ARCH_SPARSEMEM_ENABLE
 config ARCH_SPARSEMEM_DEFAULT
 	def_bool ARCH_SPARSEMEM_ENABLE

-config ARCH_SELECT_MEMORY_MODEL
-	def_bool ARCH_SPARSEMEM_ENABLE
-
 config HAVE_ARCH_PFN_VALID
 	def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM

-- 
2.7.4