linux-kernel - [PATCH v3 4/9] um: Fix the return type of __switch

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Date: Wed, 06 Mar 2024 18:19:20 +0800
From: "Tiwei Bie" <tiwei.btw@...group.com>
To: richard@....at,
	anton.ivanov@...bridgegreys.com,
	johannes@...solutions.net
Cc:  <jani.nikula@...el.com>,
   <linux-um@...ts.infradead.org>,
   <linux-kernel@...r.kernel.org>,
   <intel-xe@...ts.freedesktop.org>,
  "Tiwei Bie" <tiwei.btw@...group.com>
Subject: [PATCH v3 4/9] um: Fix the return type of __switch_to

Make it match the declaration in asm-generic/switch_to.h. And
also include the header to allow the compiler to check it.

Signed-off-by: Tiwei Bie <tiwei.btw@...group.com>
---
 arch/um/kernel/process.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 292c8014aaa6..a7607ef1b02f 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -26,6 +26,7 @@
 #include <linux/resume_user_mode.h>
 #include <asm/current.h>
 #include <asm/mmu_context.h>
+#include <asm/switch_to.h>
 #include <linux/uaccess.h>
 #include <as-layout.h>
 #include <kern_util.h>
@@ -73,7 +74,7 @@ static inline void set_current(struct task_struct *task)
 
 extern void arch_switch_to(struct task_struct *to);
 
-void *__switch_to(struct task_struct *from, struct task_struct *to)
+struct task_struct *__switch_to(struct task_struct *from, struct task_struct *to)
 {
 	to->thread.prev_sched = from;
 	set_current(to);
-- 
2.34.1