[PATCH v1 1/2] flask: add const qualifier to security_context_to_sid()

The function does not modify context argument.
Also it gives more flexibility to this API usage, because some context strings
in Xen are also const char*.

Signed-off-by: Sergiy Kibrik <[email protected]>
---
 xen/xsm/flask/include/security.h | 2 +-
 xen/xsm/flask/ss/services.c      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/xsm/flask/include/security.h b/xen/xsm/flask/include/security.h
index ec8b442a8f..a2c5f423f8 100644
--- a/xen/xsm/flask/include/security.h
+++ b/xen/xsm/flask/include/security.h
@@ -76,7 +76,7 @@ int security_change_sid(u32 ssid, u32 tsid, u16 tclass, u32 *out_sid);
 
 int security_sid_to_context(u32 sid, char **scontext, u32 *scontext_len);
 
-int security_context_to_sid(char *scontext, u32 scontext_len, u32 *out_sid);
+int security_context_to_sid(const char *scontext, u32 scontext_len, u32 *out_sid);
 
 int security_get_allow_unknown(void);
 
diff --git a/xen/xsm/flask/ss/services.c b/xen/xsm/flask/ss/services.c
index 35ad1034ca..764ac7d1d8 100644
--- a/xen/xsm/flask/ss/services.c
+++ b/xen/xsm/flask/ss/services.c
@@ -813,7 +813,7 @@ out:
  * Returns -%EINVAL if the context is invalid, -%ENOMEM if insufficient
  * memory is available, or 0 on success.
  */
-int security_context_to_sid(char *scontext, u32 scontext_len, u32 *sid)
+int security_context_to_sid(const char *scontext, u32 scontext_len, u32 *sid)
 {
     char *scontext2;
     struct context context;
-- 
2.43.0