From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 arch/parisc/kernel/vdso32/restart_syscall.S | 32 +++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 arch/parisc/kernel/vdso32/restart_syscall.S

(limited to 'arch/parisc/kernel/vdso32/restart_syscall.S')

diff --git a/arch/parisc/kernel/vdso32/restart_syscall.S b/arch/parisc/kernel/vdso32/restart_syscall.S
new file mode 100644
index 000000000..7e82008d7
--- /dev/null
+++ b/arch/parisc/kernel/vdso32/restart_syscall.S
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Syscall restart trampoline for 32 and 64 bits processes.
+ *
+ * Copyright (C) 2018-2022 Helge Deller <deller@gmx.de>
+ * Copyright (C) 2022 John David Anglin <dave.anglin@bell.net>
+ */
+
+#include <asm/unistd.h>
+#include <asm/vdso.h>
+
+#include <linux/linkage.h>
+
+	.text
+
+ENTRY_CFI(__kernel_restart_syscall)
+	/*
+	 * Setup a trampoline to restart the syscall
+	 * with __NR_restart_syscall
+	 */
+
+	/* load return pointer */
+#if defined(__VDSO64__)
+	ldd	0(%sp), %r31
+#elif defined(__VDSO32__)
+	ldw	0(%sp), %r31
+#endif
+
+	be	0x100(%sr2, %r0)
+	ldi	__NR_restart_syscall, %r20
+
+ENDPROC_CFI(__kernel_restart_syscall)
-- 
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