Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
include/linux/compat-2.6.33.h | 37 +++++++++++++++++++++++++++++++++++--
1 files changed, 35 insertions(+), 2 deletions(-)
diff --git a/include/linux/compat-2.6.33.h b/include/linux/compat-2.6.33.h
index e7e20d9..6a7cd3e 100644
--- a/include/linux/compat-2.6.33.h
+++ b/include/linux/compat-2.6.33.h
@@ -94,11 +94,44 @@ int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
/* Backport for kfifo
* kfifo_alloc and kfifo_free must be backported manually
*/
-#define kfifo_in(a, b, c) __kfifo_put(*a, b, c)
-#define kfifo_out(a, b, c) __kfifo_get(*a, b, c)
+#define kfifo_in(a, b, c) __kfifo_put(*a, (unsigned char *)b, c)
+#define kfifo_out(a, b, c) __kfifo_get(*a, (unsigned char *)b, c)
#define kfifo_len(a) __kfifo_len(*a)
/**
+ * kfifo_is_empty - returns true if the fifo is empty
+ * @fifo: the fifo to be used.
+ */
+static inline __must_check int kfifo_is_empty(struct kfifo **fifo)
+{
+ return (*fifo)->in == (*fifo)->out;
+}
+
+/**
+ * kfifo_size - returns the size of the fifo in bytes
+ * @fifo: the fifo to be used.
+ */
+static inline __must_check unsigned int kfifo_size(struct kfifo *fifo)
+{
+ return fifo->size;
+}
+
+/**
+ * kfifo_is_full - returns true if the fifo is full
+ * @fifo: the fifo to be used.
+ */
+static inline __must_check int kfifo_is_full(struct kfifo **fifo)
+{
+ return kfifo_len(fifo) == kfifo_size(*fifo);
+}
+
+static inline void compat_kfifo_free(struct kfifo **fifo) {
+ if (*fifo)
+ kfifo_free(*fifo);
+}
+#define kfifo_free compat_kfifo_free
+
+/**
* list_for_each_entry_continue_rcu - continue iteration over list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
--
1.7.0.4
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