From: Heiko Carstens <hca@linux.ibm.com>
Date: Mon, 5 Jul 2021 20:27:06 +0000 (+0200)
Subject: s390/irq: inline do_softirq_own_stack()
X-Git-Tag: v5.14-rc1~18^2~13
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ae6521504941650fd48bcefd288730c3e44211a;p=thirdparty%2Fkernel%2Flinux.git

s390/irq: inline do_softirq_own_stack()

Move do_softirq_own_stack() to proper header file so it can be
inlined; saving a few cycles.

Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
---

diff --git a/arch/s390/include/asm/softirq_stack.h b/arch/s390/include/asm/softirq_stack.h
new file mode 100644
index 0000000000000..5976fd613cd28
--- /dev/null
+++ b/arch/s390/include/asm/softirq_stack.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __ASM_S390_SOFTIRQ_STACK_H
+#define __ASM_S390_SOFTIRQ_STACK_H
+
+#include <asm/lowcore.h>
+#include <asm/stacktrace.h>
+
+static inline void do_softirq_own_stack(void)
+{
+	CALL_ON_STACK(__do_softirq, S390_lowcore.async_stack, 0);
+}
+
+#endif /* __ASM_S390_SOFTIRQ_STACK_H */
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index a03d9f54d36f7..b55af916fbd5b 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -265,14 +265,6 @@ unsigned int arch_dynirq_lower_bound(unsigned int from)
 	return from < NR_IRQS_BASE ? NR_IRQS_BASE : from;
 }
 
-/*
- * Switch to the asynchronous interrupt stack for softirq execution.
- */
-void do_softirq_own_stack(void)
-{
-	CALL_ON_STACK(__do_softirq, S390_lowcore.async_stack, 0);
-}
-
 /*
  * ext_int_hash[index] is the list head for all external interrupts that hash
  * to this index.