linux-kernel - [PATCH -next v5 16/22] entry: Make syscall_exit_to_user_mode

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Message-ID: <20241206101744.4161990-17-ruanjinjie@huawei.com>
Date: Fri, 6 Dec 2024 18:17:38 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <catalin.marinas@....com>, <will@...nel.org>, <oleg@...hat.com>,
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Subject: [PATCH -next v5 16/22] entry: Make syscall_exit_to_user_mode_prepare() not static

In order to switch to the generic entry for arm64, make
syscall_exit_to_user_mode_prepare() not static and can be used by
arm64.

No functional changes.

Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
---
 include/linux/entry-common.h  | 1 +
 kernel/entry/syscall-common.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/entry-common.h b/include/linux/entry-common.h
index b3233e8328c5..d11bdb4679b3 100644
--- a/include/linux/entry-common.h
+++ b/include/linux/entry-common.h
@@ -172,5 +172,6 @@ void syscall_exit_to_user_mode_work(struct pt_regs *regs);
  * compelling architectural reason to use the separate functions.
  */
 void syscall_exit_to_user_mode(struct pt_regs *regs);
+void syscall_exit_to_user_mode_prepare(struct pt_regs *regs);
 
 #endif
diff --git a/kernel/entry/syscall-common.c b/kernel/entry/syscall-common.c
index 0eb036986ad4..f78285097111 100644
--- a/kernel/entry/syscall-common.c
+++ b/kernel/entry/syscall-common.c
@@ -115,7 +115,7 @@ static void syscall_exit_work(struct pt_regs *regs, unsigned long work)
  * Syscall specific exit to user mode preparation. Runs with interrupts
  * enabled.
  */
-static void syscall_exit_to_user_mode_prepare(struct pt_regs *regs)
+void syscall_exit_to_user_mode_prepare(struct pt_regs *regs)
 {
 	unsigned long work = READ_ONCE(current_thread_info()->syscall_work);
 	unsigned long nr = syscall_get_nr(current, regs);
-- 
2.34.1