X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Flinux%2Futsname.h;h=11232676bfff59af017b4b3343c67dc430004c4b;hb=e8938a62a85d1f487e02c3b01955b47c9598f6d2;hp=e10267d402c5b982d46869d1c4f49345081b7f5c;hpb=0bce0b7a3b25b33220be77dcaf3dc4585641100c;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index e10267d402c5..11232676bfff 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -35,6 +35,7 @@ struct new_utsname {
 #include <linux/sched.h>
 #include <linux/kref.h>
 #include <linux/nsproxy.h>
+#include <linux/err.h>
 #include <asm/atomic.h>
 
 struct uts_namespace {
@@ -43,15 +44,14 @@ struct uts_namespace {
 };
 extern struct uts_namespace init_uts_ns;
 
+#ifdef CONFIG_UTS_NS
 static inline void get_uts_ns(struct uts_namespace *ns)
 {
 	kref_get(&ns->kref);
 }
 
-#ifdef CONFIG_UTS_NS
-extern int unshare_utsname(unsigned long unshare_flags,
-				struct uts_namespace **new_uts);
-extern int copy_utsname(int flags, struct task_struct *tsk);
+extern struct uts_namespace *copy_utsname(unsigned long flags,
+					struct uts_namespace *ns);
 extern void free_uts_ns(struct kref *kref);
 
 static inline void put_uts_ns(struct uts_namespace *ns)
@@ -59,23 +59,21 @@ static inline void put_uts_ns(struct uts_namespace *ns)
 	kref_put(&ns->kref, free_uts_ns);
 }
 #else
-static inline int unshare_utsname(unsigned long unshare_flags,
-			struct uts_namespace **new_uts)
+static inline void get_uts_ns(struct uts_namespace *ns)
 {
-	if (unshare_flags & CLONE_NEWUTS)
-		return -EINVAL;
-
-	return 0;
 }
 
-static inline int copy_utsname(int flags, struct task_struct *tsk)
+static inline void put_uts_ns(struct uts_namespace *ns)
 {
-	if (flags & CLONE_NEWUTS)
-		return -EINVAL;
-	return 0;
 }
-static inline void put_uts_ns(struct uts_namespace *ns)
+
+static inline struct uts_namespace *copy_utsname(unsigned long flags,
+					struct uts_namespace *ns)
 {
+	if (flags & CLONE_NEWUTS)
+		return ERR_PTR(-EINVAL);
+
+	return ns;
 }
 #endif