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Subjectcommit 1cb41fe7e34a43a1d27dfdb6d65699786dd44c20 in stable (v3.3.3) breaks perf
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-> != entry-> {
+ he-> = entry->;
+ if (he->
+ he->>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.
Greg wrote on G+ that those who did not test 3.3.3-rc1 have no right to complain, but I'm complaining anyway. :P

See trivial patch to fix this.

I don't need credit for the patch so it's ok if my diff doesn't apply because of messed up whitespace.
Just fix it.

Signed-off-by: Zeev Tarantov <>

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index a47a6f1..1794b92 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -237,8 +237,8 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
* mis-adjust symbol addresses when computing
* the history counter to increment.
- if (he-> != entry-> {
- he-> = entry->;
+ if (he-> != {
+ he-> =;
if (he->
he->>referenced = true;
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