Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

. Allow skipping problematic entries in 'perf test'.

. Fix some namespace problems in the event parsing routines.

. Add 'perf test' entry to make sure the python binding doesn't have
  linking problems.

. Adjust 'perf test' attr tests verbosity levels.

. Make tools/perf build with GNU make v3.80, fix from Al Cooper.

. Do missing feature fallbacks in just one place, removing duplicated
  code in multiple tools.

. Fix some memory leaks, from David Ahern.

. Fix segfault when drawing out-of-bounds jumps, from Frederik Deweerdt.

. Allow of casting an array of char to string in 'perf probe', from
  Hyeoncheol Lee.

. Add support for wildcard in tracepoint system name, from Jiri Olsa.

. Update FSF postal address to be URL's, from Jon Stanley.

. Add anonymous huge page recognition, from Joshua Zhu.

. Remove some needless feature test checks, from Namhyung Kim.

. Multiple improvements to the sort routines, from Namhyung Kim.

. Fix warning on '>=' operator in libtraceevent, from Namhyung Kim.

. Use ARRAY_SIZE instead of reinventing it in 'perf script' and 'perf kmem',
  from Sasha Levin.

. Remove some redundant checks, from Sasha Levin.

. Test correct variable after allocation in libtraceevent, fix from Sasha Levin.

. Mark branch_info maps as referenced, fix from Stephane Eranian.

. Fix PMU format parsing test failure, from Sukadev Bhattiprolu.

. Fix possible (unlikely) buffer overflow, from Thomas Jarosch.

. Multiple 'perf script' fixes, from Tom Zanussi.

. Add missing field in PERF_RECORD_SAMPLE documentation, from Vince Weaver.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

81 files changed, 1816 insertions, 1202 deletions

diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 4f63c05d27c9..9fa9c622a7f4 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -579,7 +579,8 @@ enum perf_event_type {
          *      { u32                   size;
          *        char                  data[size];}&& PERF_SAMPLE_RAW
          *
-         *      { u64 from, to, flags } lbr[nr];} && PERF_SAMPLE_BRANCH_STACK
+         *      { u64                   nr;
+         *        { u64 from, to, flags } lbr[nr];} && PERF_SAMPLE_BRANCH_STACK
          *
          *      { u64                   abi; # enum perf_sample_regs_abi
          *        u64                   regs[weight(mask)]; } && PERF_SAMPLE_REGS_USER
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index dea7acfbb071..30ea9a4f4ab4 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -901,8 +901,7 @@ void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consume
         }
 
         mutex_unlock(uprobes_hash(inode));
-        if (uprobe)
-                put_uprobe(uprobe);
+        put_uprobe(uprobe);
 }
 
 static struct rb_node *
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 5a824e355d04..bb8b3db0e583 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -13,8 +13,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * License along with this program; if not,  see <http://www.gnu.org/licenses>
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
@@ -1463,7 +1462,8 @@ static int event_read_fields(struct event_format *event, struct format_field **f
                         if (read_expect_type(EVENT_ITEM, &token))
                                 goto fail;
 
-                        /* add signed type */
+                        if (strtoul(token, NULL, 0))
+                                field->flags |= FIELD_IS_SIGNED;