linux-kernel - [tip:irq/core] softirq/sparc: Convert local_softirq

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Date:   Mon, 14 May 2018 05:47:51 -0700
From:   tip-bot for Frederic Weisbecker <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, mingo@...nel.org,
        ysato@...rs.sourceforge.jp, deller@....de, jejb@...isc-linux.org,
        heiko.carstens@...ibm.com, mpe@...erman.id.au,
        benh@...nel.crashing.org, torvalds@...ux-foundation.org,
        bigeasy@...utronix.de, dalias@...c.org, peterz@...radead.org,
        hpa@...or.com, frederic@...nel.org, davem@...emloft.net,
        fenghua.yu@...el.com, paulus@...ba.org, tony.luck@...el.com,
        tglx@...utronix.de, schwidefsky@...ibm.com
Subject: [tip:irq/core] softirq/sparc: Convert local_softirq_pending() to
 use per-cpu op

Commit-ID:  49892dbc2cb349f78eccfc1f55eac0ec718f44bb
Gitweb:     https://git.kernel.org/tip/49892dbc2cb349f78eccfc1f55eac0ec718f44bb
Author:     Frederic Weisbecker <frederic@...nel.org>
AuthorDate: Tue, 8 May 2018 15:38:17 +0200
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 14 May 2018 11:25:26 +0200

softirq/sparc: Convert local_softirq_pending() to use per-cpu op

In order to consolidate and optimize generic softirq mask accesses, we
first need to convert architectures to use per-cpu operations when
possible.

Signed-off-by: Frederic Weisbecker <frederic@...nel.org>
Acked-by: Thomas Gleixner <tglx@...utronix.de>
Acked-by: Peter Zijlstra <peterz@...radead.org>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: David S. Miller <davem@...emloft.net>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: Helge Deller <deller@....de>
Cc: James E.J. Bottomley <jejb@...isc-linux.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Rich Felker <dalias@...c.org>
Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Yoshinori Sato <ysato@...rs.sourceforge.jp>
Link: http://lkml.kernel.org/r/1525786706-22846-3-git-send-email-frederic@kernel.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/sparc/include/asm/hardirq_64.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sparc/include/asm/hardirq_64.h b/arch/sparc/include/asm/hardirq_64.h
index f56540271993..6aba904819a4 100644
--- a/arch/sparc/include/asm/hardirq_64.h
+++ b/arch/sparc/include/asm/hardirq_64.h
@@ -11,7 +11,7 @@
 
 #define __ARCH_IRQ_STAT
 #define local_softirq_pending() \
-	(local_cpu_data().__softirq_pending)
+	(*this_cpu_ptr(&__cpu_data.__softirq_pending))
 
 void ack_bad_irq(unsigned int irq);