linux-kernel - [PATCH 08/16] tools/include: Add pfn.h stub

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Message-Id: <62d0484f651bde15938c6faa9cc1b95388cfd329.1643206612.git.karolinadrobnik@gmail.com>
Date:   Thu, 27 Jan 2022 14:21:26 +0100
From:   Karolina Drobnik <karolinadrobnik@...il.com>
To:     linux-mm@...ck.org
Cc:     akpm@...ux-foundation.org, mike.rapoport@...il.com,
        linux-kernel@...r.kernel.org,
        Karolina Drobnik <karolinadrobnik@...il.com>
Subject: [PATCH 08/16] tools/include: Add pfn.h stub

Add a stubbed pfn header with definitions used in testing.

Signed-off-by: Karolina Drobnik <karolinadrobnik@...il.com>
---
 tools/include/linux/pfn.h | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 tools/include/linux/pfn.h

diff --git a/tools/include/linux/pfn.h b/tools/include/linux/pfn.h
new file mode 100644
index 000000000000..7512a58189eb
--- /dev/null
+++ b/tools/include/linux/pfn.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _TOOLS_LINUX_PFN_H_
+#define _TOOLS_LINUX_PFN_H_
+
+#include <linux/mm.h>
+
+#define PFN_UP(x)	(((x) + PAGE_SIZE - 1) >> PAGE_SHIFT)
+#define PFN_DOWN(x)	((x) >> PAGE_SHIFT)
+#define PFN_PHYS(x)	((phys_addr_t)(x) << PAGE_SHIFT)
+#endif
-- 
2.30.2