linux-kernel - [PATCH] tools/virtio: fix the vringh test for virtio ring changes

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Message-Id: <20221221075506.3291148-1-mie@igel.co.jp>
Date:   Wed, 21 Dec 2022 16:55:06 +0900
From:   Shunsuke Mie <mie@...l.co.jp>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     Jason Wang <jasowang@...hat.com>, Shunsuke Mie <mie@...l.co.jp>,
        Eugenio Pérez <eperezma@...hat.com>,
        Stefano Garzarella <sgarzare@...hat.com>,
        linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Subject: [PATCH] tools/virtio: fix the vringh test for virtio ring changes

Fix the build caused by missing kmsan_handle_dma() and is_power_of_2() that
are used in drivers/virtio/virtio_ring.c.

Signed-off-by: Shunsuke Mie <mie@...l.co.jp>
---
 tools/virtio/linux/cpumask.h  |  7 +++++++
 tools/virtio/linux/gfp.h      |  7 +++++++
 tools/virtio/linux/kernel.h   |  1 +
 tools/virtio/linux/kmsan.h    | 12 ++++++++++++
 tools/virtio/linux/log2.h     | 11 +++++++++++
 tools/virtio/linux/topology.h |  7 +++++++
 6 files changed, 45 insertions(+)
 create mode 100644 tools/virtio/linux/cpumask.h
 create mode 100644 tools/virtio/linux/gfp.h
 create mode 100644 tools/virtio/linux/kmsan.h
 create mode 100644 tools/virtio/linux/log2.h
 create mode 100644 tools/virtio/linux/topology.h

diff --git a/tools/virtio/linux/cpumask.h b/tools/virtio/linux/cpumask.h
new file mode 100644
index 000000000000..307da69d6b26
--- /dev/null
+++ b/tools/virtio/linux/cpumask.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_CPUMASK_H
+#define _LINUX_CPUMASK_H
+
+#include <linux/kernel.h>
+
+#endif /* _LINUX_CPUMASK_H */
diff --git a/tools/virtio/linux/gfp.h b/tools/virtio/linux/gfp.h
new file mode 100644
index 000000000000..43d146f236f1
--- /dev/null
+++ b/tools/virtio/linux/gfp.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_GFP_H
+#define __LINUX_GFP_H
+
+#include <linux/topology.h>
+
+#endif
diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h
index 21593bf97755..8b877167933d 100644
--- a/tools/virtio/linux/kernel.h
+++ b/tools/virtio/linux/kernel.h
@@ -10,6 +10,7 @@
 #include <stdarg.h>
 
 #include <linux/compiler.h>
+#include <linux/log2.h>
 #include <linux/types.h>
 #include <linux/overflow.h>
 #include <linux/list.h>
diff --git a/tools/virtio/linux/kmsan.h b/tools/virtio/linux/kmsan.h
new file mode 100644
index 000000000000..272b5aa285d5
--- /dev/null
+++ b/tools/virtio/linux/kmsan.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_KMSAN_H
+#define _LINUX_KMSAN_H
+
+#include <linux/gfp.h>
+
+inline void kmsan_handle_dma(struct page *page, size_t offset, size_t size,
+			     enum dma_data_direction dir)
+{
+}
+
+#endif /* _LINUX_KMSAN_H */
diff --git a/tools/virtio/linux/log2.h b/tools/virtio/linux/log2.h
new file mode 100644
index 000000000000..aa67bb21d8e2
--- /dev/null
+++ b/tools/virtio/linux/log2.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _LINUX_LOG2_H
+#define _LINUX_LOG2_H
+
+inline bool is_power_of_2(unsigned long n)
+{
+	return true;
+}
+
+#endif /* _LINUX_LOG2_H */
diff --git a/tools/virtio/linux/topology.h b/tools/virtio/linux/topology.h
new file mode 100644
index 000000000000..910794afb993
--- /dev/null
+++ b/tools/virtio/linux/topology.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_TOPOLOGY_H
+#define _LINUX_TOPOLOGY_H
+
+#include <linux/cpumask.h>
+
+#endif /* _LINUX_TOPOLOGY_H */
-- 
2.25.1