kernel: fix OCF for linux 3.2

Add skb_frag_page from 3.2 to OCF for 3.1 and earlier and use it.

SVN-Revision: 29818

target/linux/generic/files/crypto/ocf/ocf-compat.h

@@ -359,6 +359,15 @@ static inline int ocf_run_thread(void *arg)
 #include <linux/kthread.h>
 #endif
 
+#include <linux/skbuff.h>
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0)
+static inline struct page *skb_frag_page(const skb_frag_t *frag)
+{
+	return frag->page;
+}
+#endif
+
 #endif /* __KERNEL__ */
 
 /****************************************************************************/