linux-kernel - [PATCH] tools/virtio: Fix build

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Date:   Sun, 13 Oct 2019 11:03:30 +0200
From:   Jan Kiszka <jan.kiszka@....de>
To:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        "virtualization@...ts.linux-foundation.org" 
        <virtualization@...ts.linux-foundation.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH] tools/virtio: Fix build

From: Jan Kiszka <jan.kiszka@...mens.com>

Various changes in the recent kernel versions broke the build due to
missing function and header stubs.

Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
---
 tools/virtio/crypto/hash.h       | 0
 tools/virtio/linux/dma-mapping.h | 2 ++
 tools/virtio/linux/kernel.h      | 2 ++
 3 files changed, 4 insertions(+)
 create mode 100644 tools/virtio/crypto/hash.h

diff --git a/tools/virtio/crypto/hash.h b/tools/virtio/crypto/hash.h
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/tools/virtio/linux/dma-mapping.h b/tools/virtio/linux/dma-mapping.h
index f91aeb5fe571..db96cb4bf877 100644
--- a/tools/virtio/linux/dma-mapping.h
+++ b/tools/virtio/linux/dma-mapping.h
@@ -29,4 +29,6 @@ enum dma_data_direction {
 #define dma_unmap_single(...) do { } while (0)
 #define dma_unmap_page(...) do { } while (0)

+#define dma_max_mapping_size(d)	0
+
 #endif
diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h
index 6683b4a70b05..ccf321173210 100644
--- a/tools/virtio/linux/kernel.h
+++ b/tools/virtio/linux/kernel.h
@@ -141,4 +141,6 @@ static inline void free_page(unsigned long addr)
 #define list_for_each_entry(a, b, c) while (0)
 /* end of stubs */

+#define xen_domain() 0
+
 #endif /* KERNEL_H */
--
2.16.4