linux-kernel - [PATCH v06 27/36] uapi xen/gntdev.h: include xen/privcmd.h and define grant_ref

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Date:   Sun,  6 Aug 2017 18:44:18 +0200
From:   Mikko Rapeli <mikko.rapeli@....fi>
To:     linux-kernel@...r.kernel.org, linux-api@...r.kernel.org
Cc:     Mikko Rapeli <mikko.rapeli@....fi>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        xen-devel@...ts.xenproject.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Subject: [PATCH v06 27/36] uapi xen/gntdev.h: include xen/privcmd.h and define grant_ref_t

Both are needed to compile <xen/gntdev.h> in userspace. Fixes these
userspace compile errors:

xen/gntdev.h:151:4: error: unknown type name ‘grant_ref_t’
    grant_ref_t ref;
    ^
xen/gntdev.h:153:4: error: unknown type name ‘domid_t’
    domid_t domid;
    ^

Signed-off-by: Mikko Rapeli <mikko.rapeli@....fi>
Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Cc: Juergen Gross <jgross@...e.com>
Cc: xen-devel@...ts.xenproject.org
---
 include/uapi/xen/gntdev.h           | 6 ++++++
 include/xen/interface/grant_table.h | 6 +-----
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/include/uapi/xen/gntdev.h b/include/uapi/xen/gntdev.h
index d0661977667e..f208706b07c9 100644
--- a/include/uapi/xen/gntdev.h
+++ b/include/uapi/xen/gntdev.h
@@ -34,6 +34,12 @@
 #define __LINUX_PUBLIC_GNTDEV_H__
 
 #include <linux/types.h>
+#include <xen/privcmd.h>
+
+/*
+ * Reference to a grant entry in a specified domain's grant table.
+ */
+typedef __u32 grant_ref_t;
 
 struct ioctl_gntdev_grant_ref {
 	/* The domain ID of the grant to be mapped. */
diff --git a/include/xen/interface/grant_table.h b/include/xen/interface/grant_table.h
index 7fb7112d667c..29b3724aec2c 100644
--- a/include/xen/interface/grant_table.h
+++ b/include/xen/interface/grant_table.h
@@ -29,6 +29,7 @@
 #define __XEN_PUBLIC_GRANT_TABLE_H__
 
 #include <xen/interface/xen.h>
+#include <uapi/xen/gntdev.h> /* for grant_ref_t */
 
 /***********************************
  * GRANT TABLE REPRESENTATION
@@ -85,11 +86,6 @@
  */
 
 /*
- * Reference to a grant entry in a specified domain's grant table.
- */
-typedef uint32_t grant_ref_t;
-
-/*
  * A grant table comprises a packed array of grant entries in one or more
  * page frames shared between Xen and a guest.
  * [XEN]: This field is written by Xen and read by the sharing guest.
-- 
2.13.3