[xen master] xen/xsm: Move {do,compat}_flask_op() declarations into a header

[patchbot@xxxxxxx]

commit 44d6b0758469cafff12be16d75b51f6d9217d22c
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Fri Oct 29 23:05:25 2021 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Feb 23 15:33:42 2022 +0000

    xen/xsm: Move {do,compat}_flask_op() declarations into a header
    
    Declaring sideways like this is unsafe, because the compiler can't check 
that
    the implementation in flask_op.c still has the same type.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
---
 xen/xsm/flask/flask_op.c | 1 +
 xen/xsm/flask/hooks.c    | 4 +---
 xen/xsm/flask/private.h  | 9 +++++++++
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/xen/xsm/flask/flask_op.c b/xen/xsm/flask/flask_op.c
index 221ff00fd3..bb3bebc30e 100644
--- a/xen/xsm/flask/flask_op.c
+++ b/xen/xsm/flask/flask_op.c
@@ -21,6 +21,7 @@
 #include <avc_ss.h>
 #include <objsec.h>
 #include <conditional.h>
+#include "private.h"
 
 #define ret_t long
 #define _copy_to_guest copy_to_guest
diff --git a/xen/xsm/flask/hooks.c b/xen/xsm/flask/hooks.c
index 3b29f7fde3..6ff1be28e4 100644
--- a/xen/xsm/flask/hooks.c
+++ b/xen/xsm/flask/hooks.c
@@ -36,6 +36,7 @@
 #include <avc_ss.h>
 #include <objsec.h>
 #include <conditional.h>
+#include "private.h"
 
 static u32 domain_sid(const struct domain *dom)
 {
@@ -1742,9 +1743,6 @@ static int flask_argo_send(const struct domain *d, const 
struct domain *t)
 
 #endif
 
-long do_flask_op(XEN_GUEST_HANDLE_PARAM(void) u_flask_op);
-int compat_flask_op(XEN_GUEST_HANDLE_PARAM(void) u_flask_op);
-
 static const struct xsm_ops __initconstrel flask_ops = {
     .security_domaininfo = flask_security_domaininfo,
     .domain_create = flask_domain_create,
diff --git a/xen/xsm/flask/private.h b/xen/xsm/flask/private.h
new file mode 100644
index 0000000000..73b0de8724
--- /dev/null
+++ b/xen/xsm/flask/private.h
@@ -0,0 +1,9 @@
+#ifndef XSM_FLASK_PRIVATE
+#define XSM_FLASK_PRIVATE
+
+#include <public/xen.h>
+
+long do_flask_op(XEN_GUEST_HANDLE_PARAM(void) u_flask_op);
+int compat_flask_op(XEN_GUEST_HANDLE_PARAM(void) u_flask_op);
+
+#endif /* XSM_FLASK_PRIVATE */
--
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