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Subject[tip:x86/urgent] x86: Remove unused parameter of prepare_switch_to
Commit-ID:  7ac139eaa6bbdb07c547b6916a808eab3897e0e3
Gitweb: https://git.kernel.org/tip/7ac139eaa6bbdb07c547b6916a808eab3897e0e3
Author: rodrigosiqueira <rodrigosiqueiramelo@gmail.com>
AuthorDate: Fri, 15 Dec 2017 11:15:33 -0200
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Wed, 27 Dec 2017 20:37:41 +0100

x86: Remove unused parameter of prepare_switch_to

Commit e37e43a497d5 ("x86/mm/64: Enable vmapped stacks
(CONFIG_HAVE_ARCH_VMAP_STACK=y)") added prepare_switch_to with one extra
parameter which is not used by the function, remove it.

Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-janitors@vger.kernel.org
Link: https://lkml.kernel.org/r/20171215131533.hp6kqebw45o7uvsb@smtp.gmail.com

---
arch/x86/include/asm/switch_to.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
index 8c6bd68..1008d46 100644
--- a/arch/x86/include/asm/switch_to.h
+++ b/arch/x86/include/asm/switch_to.h
@@ -16,8 +16,7 @@ void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
struct tss_struct *tss);

/* This runs runs on the previous thread's stack. */
-static inline void prepare_switch_to(struct task_struct *prev,
- struct task_struct *next)
+static inline void prepare_switch_to(struct task_struct *next)
{
#ifdef CONFIG_VMAP_STACK
/*
@@ -70,7 +69,7 @@ struct fork_frame {

#define switch_to(prev, next, last) \
do { \
- prepare_switch_to(prev, next); \
+ prepare_switch_to(next); \
\
((last) = __switch_to_asm((prev), (next))); \
} while (0)
\
 
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