import 15.2.0 Octopus source

[ceph.git] / ceph / src / seastar / dpdk / lib / librte_hash / rte_jhash.h

diff --git a/ceph/src/seastar/dpdk/lib/librte_hash/rte_jhash.h b/ceph/src/seastar/dpdk/lib/librte_hash/rte_jhash.h
index 207478c2823dd703593aaf11271e4f5f0b174946..42c45685be63be7e31500b5dc105341d36dfdbba 100644 (file)
--- a/ceph/src/seastar/dpdk/lib/librte_hash/rte_jhash.h
+++ b/ceph/src/seastar/dpdk/lib/librte_hash/rte_jhash.h
@@ -48,6 +48,7 @@ extern "C" {
 #include <string.h>
 #include <limits.h>
 
+#include <rte_config.h>
 #include <rte_log.h>
 #include <rte_byteorder.h>
 
@@ -290,7 +291,10 @@ rte_jhash_32b_2hashes(const uint32_t *k, uint32_t length, uint32_t *pc, uint32_t
 /**
  * The most generic version, hashes an arbitrary sequence
  * of bytes.  No alignment or length assumptions are made about
- * the input key.
+ * the input key.  For keys not aligned to four byte boundaries
+ * or a multiple of four bytes in length, the memory region
+ * just after may be read (but not used in the computation).
+ * This may cross a page boundary.
  *
  * @param key
  *   Key to calculate hash of.