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authorJames Morris <james.morris@microsoft.com>2019-01-10 11:41:59 -0800
committerJames Morris <james.morris@microsoft.com>2019-01-10 11:41:59 -0800
commit49e41801b335f64610bbfd23e8f2bbaf34d46276 (patch)
tree4fbedacd1de1bbd4054f07f93031aebcb7b7a919 /tools/include/linux/err.h
parentb49d564344f773d8afee982153c8493e5f2eaf38 (diff)
parentbfeffd155283772bbe78c6a05dec7c0128ee500c (diff)
Merge tag 'v5.0-rc1' into next-general
Linux 5.0-rc1 Sync to pick up LSM stacking work (which is based on -rc1).
Diffstat (limited to 'tools/include/linux/err.h')
-rw-r--r--tools/include/linux/err.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/include/linux/err.h b/tools/include/linux/err.h
index 094649667bae..2f5a12b88a86 100644
--- a/tools/include/linux/err.h
+++ b/tools/include/linux/err.h
@@ -59,4 +59,17 @@ static inline int __must_check PTR_ERR_OR_ZERO(__force const void *ptr)
else
return 0;
}
+
+/**
+ * ERR_CAST - Explicitly cast an error-valued pointer to another pointer type
+ * @ptr: The pointer to cast.
+ *
+ * Explicitly cast an error-valued pointer to another pointer type in such a
+ * way as to make it clear that's what's going on.
+ */
+static inline void * __must_check ERR_CAST(__force const void *ptr)
+{
+ /* cast away the const */
+ return (void *) ptr;
+}
#endif /* _LINUX_ERR_H */