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From: Mark Rutland <mark.rutland@arm.com>
To: linux-kernel@vger.kernel.org, will@kernel.org,
	boqun.feng@gmail.com, peterz@infradead.org
Cc: aou@eecs.berkeley.edu, arnd@arndb.de, bcain@codeaurora.org,
	benh@kernel.crashing.org, chris@zankel.net, dalias@libc.org,
	davem@davemloft.net, deanbo422@gmail.com, deller@gmx.de,
	geert@linux-m68k.org, gerg@linux-m68k.org, green.hu@gmail.com,
	guoren@kernel.org, ink@jurassic.park.msu.ru,
	James.Bottomley@HansenPartnership.com, jcmvbkbc@gmail.com,
	jonas@southpole.se, ley.foon.tan@intel.com,
	linux@armlinux.org.uk, mark.rutland@arm.com, mattst88@gmail.com,
	monstr@monstr.eu, mpe@ellerman.id.au, nickhu@andestech.com,
	palmerdabbelt@google.com, paulus@samba.org,
	paul.walmsley@sifive.com, rth@twiddle.net, shorne@gmail.com,
	stefan.kristiansson@saunalahti.fi, tsbogend@alpha.franken.de,
	vgupta@synopsys.com, ysato@users.sourceforge.jp
Subject: [PATCH v2 03/33] locking/atomic: h8300: use asm-generic exclusively
Date: Tue, 25 May 2021 15:02:02 +0100	[thread overview]
Message-ID: <20210525140232.53872-4-mark.rutland@arm.com> (raw)
In-Reply-To: <20210525140232.53872-1-mark.rutland@arm.com>

As h8300's implementation of the atomics isn't using any arch-specific
functionality, and its implementation of cmpxchg only uses assembly to
non-atomically swap two elements in memory, we may as well use the
asm-generic atomic.h and cmpxchg.h, and avoid the duplicate code.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/include/asm/Kbuild    |  1 +
 arch/h8300/include/asm/atomic.h  | 97 ----------------------------------------
 arch/h8300/include/asm/cmpxchg.h | 66 ---------------------------
 3 files changed, 1 insertion(+), 163 deletions(-)
 delete mode 100644 arch/h8300/include/asm/atomic.h
 delete mode 100644 arch/h8300/include/asm/cmpxchg.h

diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index 60ee7f0d60a8..e23139c8fc0d 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 generic-y += asm-offsets.h
+generic-y += cmpxchg.h
 generic-y += extable.h
 generic-y += kvm_para.h
 generic-y += mcs_spinlock.h
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h
deleted file mode 100644
index a990d151f163..000000000000
diff --git a/arch/h8300/include/asm/cmpxchg.h b/arch/h8300/include/asm/cmpxchg.h
deleted file mode 100644
index c64bb38ce242..000000000000
-- 
2.11.0


  parent reply	other threads:[~2021-05-25 14:04 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-25 14:01 [PATCH v2 00/33] locking/atomic: convert all architectures to ARCH_ATOMIC Mark Rutland
2021-05-25 14:02 ` [PATCH v2 01/33] locking/atomic: make ARCH_ATOMIC a Kconfig symbol Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 02/33] locking/atomic: net: use linux/atomic.h for xchg & cmpxchg Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` Mark Rutland [this message]
2021-05-26 11:24   ` [tip: locking/core] locking/atomic: h8300: use asm-generic exclusively tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 04/33] locking/atomic: microblaze: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-31 12:31   ` [PATCH v2 04/33] " Michal Simek
2021-05-25 14:02 ` [PATCH v2 05/33] locking/atomic: openrisc: avoid asm-generic/atomic.h Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 06/33] locking/atomic: atomic: remove stale comments Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 07/33] locking/atomic: atomic: remove redundant include Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 08/33] locking/atomic: atomic: simplify ifdeffery Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 09/33] locking/atomic: atomic: support ARCH_ATOMIC Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 10/33] locking/atomic: atomic64: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 11/33] locking/atomic: cmpxchg: make `generic` a prefix Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 12/33] locking/atomic: cmpxchg: support ARCH_ATOMIC Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 13/33] locking/atomic: alpha: move to ARCH_ATOMIC Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 14/33] locking/atomic: arc: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 15/33] locking/atomic: arm: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 16/33] locking/atomic: csky: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 17/33] locking/atomic: h8300: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 18/33] locking/atomic: hexagon: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 19/33] locking/atomic: ia64: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 20/33] locking/atomic: m68k: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 21/33] locking/atomic: microblaze: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-31 12:31   ` [PATCH v2 21/33] " Michal Simek
2021-05-25 14:02 ` [PATCH v2 22/33] locking/atomic: mips: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 23/33] locking/atomic: nds32: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 24/33] locking/atomic: nios2: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 25/33] locking/atomic: openrisc: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 26/33] locking/atomic: parisc: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 27/33] locking/atomic: powerpc: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 28/33] locking/atomic: riscv: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 29/33] locking/atomic: sh: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 30/33] locking/atomic: sparc: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 31/33] locking/atomic: xtensa: " Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 32/33] locking/atomic: delete !ARCH_ATOMIC remnants Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-25 14:02 ` [PATCH v2 33/33] locking/atomics: atomic-instrumented: simplify ifdeffery Mark Rutland
2021-05-26 11:24   ` [tip: locking/core] " tip-bot2 for Mark Rutland
2021-05-26 11:30 ` [PATCH v2 00/33] locking/atomic: convert all architectures to ARCH_ATOMIC Peter Zijlstra
2021-05-26 12:29   ` Junio C Hamano
2021-05-26 14:19     ` Peter Zijlstra
2021-06-05  5:56 ` Randy Dunlap
2021-06-18  8:48   ` Mark Rutland
2021-06-27 21:47     ` Randy Dunlap
2021-06-28 21:22       ` Randy Dunlap
2021-06-28 22:13         ` Peter Zijlstra
2021-06-28 22:21           ` Vineet Gupta
2021-06-28 22:21           ` Randy Dunlap
2021-06-29  7:36             ` Arnd Bergmann
2021-06-30  7:55               ` Peter Zijlstra
2021-06-30 12:24                 ` Arnd Bergmann

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