[PATCH v3 4/9] um: Fix the return type of __switch_to

From: Tiwei Bie
Date: Wed Mar 06 2024 - 05:26:26 EST


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@xxxxxxxxxxxx>
---
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