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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2012-12-17 16:01:18 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-17 17:15:17 -0800
commitb18888ab256f05626193be955a7a03f01d676f8c (patch)
tree50e0839fc250c1766138b47f9d8750124ed938aa /include
parent0edd807dc96522d9a8e8b5298552cd8adf810cc5 (diff)
string: introduce helper to get base file name from given path
There are several places in the kernel that use functionality like basename(3) with the exception: in case of '/foo/bar/' we expect to get an empty string. Let's do it common helper for them. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Jason Baron <jbaron@redhat.com> Cc: YAMANE Toshiaki <yamanetoshi@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/string.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/string.h b/include/linux/string.h
index 630125818ca8..ac889c5ea11b 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -143,4 +143,15 @@ static inline bool strstarts(const char *str, const char *prefix)
extern size_t memweight(const void *ptr, size_t bytes);
+/**
+ * kbasename - return the last part of a pathname.
+ *
+ * @path: path to extract the filename from.
+ */
+static inline const char *kbasename(const char *path)
+{
+ const char *tail = strrchr(path, '/');
+ return tail ? tail + 1 : path;
+}
+
#endif /* _LINUX_STRING_H_ */