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authorIngo Molnar <mingo@elte.hu>2009-04-07 13:34:26 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-07 13:34:42 +0200
commit2e8844e13ab73f1107aea4317a53ff5879f2e1d7 (patch)
tree36165371cf6fd26d674610f1c6bb5fac50e6e13f /include/linux/string.h
parentc78a3956b982418186e40978a51636a2b43221bc (diff)
parentd508afb437daee7cf07da085b635c44a4ebf9b38 (diff)
Merge branch 'linus' into tracing/hw-branch-tracing
Merge reason: update to latest tracing and ptrace APIs Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/string.h')
-rw-r--r--include/linux/string.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/string.h b/include/linux/string.h
index 27ac31784ad2..489019ef1694 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -13,6 +13,7 @@
#include <stdarg.h>
extern char *strndup_user(const char __user *, long);
+extern void *memdup_user(const void __user *, size_t);
/*
* Include machine specific inline routines
@@ -121,5 +122,14 @@ int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) __printf(3, 4);
extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
const void *from, size_t available);
+/**
+ * strstarts - does @str start with @prefix?
+ * @str: string to examine
+ * @prefix: prefix to look for.
+ */
+static inline bool strstarts(const char *str, const char *prefix)
+{
+ return strncmp(str, prefix, strlen(prefix)) == 0;
+}
#endif
#endif /* _LINUX_STRING_H_ */