[tip:irq/core] softirq/sparc: Convert local_softirq_pending() to use per-cpu op

From: tip-bot for Frederic Weisbecker
Date: Mon May 14 2018 - 08:48:56 EST

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

Signed-off-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Acked-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Acked-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: James E.J. Bottomley <jejb@xxxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1525786706-22846-3-git-send-email-frederic@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
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);