--- /dev/null
+From zeev.tarantov@gmail.com Sun Apr 22 23:38:36 2012
+From: Zeev Tarantov <zeev.tarantov@gmail.com>
+Date: Mon, 23 Apr 2012 09:37:04 +0300
+Subject: Perf: fix build breakage
+To: "David S. Miller" <davem@davemloft.net>, Arnaldo Carvalho de Melo <acme@redhat.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
+Message-ID: <20120423063704.GA3465@myhost>
+Content-Disposition: inline
+
+
+From: Zeev Tarantov <zeev.tarantov@gmail.com>
+
+[Patch not needed upstream as this is a backport build bugfix - gregkh
+
+gcc correctly complains:
+
+util/hist.c: In function ‘__hists__add_entry’:
+util/hist.c:240:27: error: invalid type argument of ‘->’ (have ‘struct hist_entry’)
+util/hist.c:241:23: error: invalid type argument of ‘->’ (have ‘struct hist_entry’)
+
+for this new code:
+
++ if (he->ms.map != entry->ms.map) {
++ he->ms.map = entry->ms.map;
++ if (he->ms.map)
++ he->ms.map->referenced = true;
++ }
+
+because "entry" is a "struct hist_entry", not a pointer to a struct.
+
+In mainline, "entry" is a pointer to struct passed as argument to the function.
+So this is broken during backporting. But obviously not compile tested.
+
+Signed-off-by: Zeev Tarantov <zeev.tarantov@gmail.com>
+Cc: Signed-off-by: David S. Miller <davem@davemloft.net>
+Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ tools/perf/util/hist.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/tools/perf/util/hist.c
++++ b/tools/perf/util/hist.c
+@@ -165,8 +165,8 @@ struct hist_entry *__hists__add_entry(st
+ * mis-adjust symbol addresses when computing
+ * the history counter to increment.
+ */
+- if (he->ms.map != entry->ms.map) {
+- he->ms.map = entry->ms.map;
++ if (he->ms.map != entry.ms.map) {
++ he->ms.map = entry.ms.map;
+ if (he->ms.map)
+ he->ms.map->referenced = true;
+ }