Merge tag 'v3.4-rc6' into drm-intel-next

Conflicts:
	drivers/gpu/drm/i915/intel_display.c

Ok, this is a fun story of git totally messing things up. There
/shouldn't/ be any conflict in here, because the fixes in -rc6 do only
touch functions that have not been changed in -next.

The offending commits in drm-next are 14415745b2..1fa611065 which
simply move a few functions from intel_display.c to intel_pm.c. The
problem seems to be that git diff gets completely confused:

$ git diff 14415745b2..1fa611065

is a nice mess in intel_display.c, and the diff leaks into totally
unrelated functions, whereas

$git diff --minimal  14415745b2..1fa611065

is exactly what we want.

Unfortunately there seems to be no way to teach similar smarts to the
merge diff and conflict generation code, because with the minimal diff
there really shouldn't be any conflicts. For added hilarity, every
time something in that area changes the + and - lines in the diff move
around like crazy, again resulting in new conflicts. So I fear this
mess will stay with us for a little longer (and might result in
another backmerge down the road).

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

9 files changed, 75 insertions, 33 deletions

diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 416684be0ad3..26b823b61aa1 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -19,3 +19,5 @@ TAGS
 cscope*
 config.mak
 config.mak.autogen
+*-bison.*
+*-flex.*
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 820371f10d1b..9bf3fc759344 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -234,24 +234,23 @@ endif
 
 export PERL_PATH
 
-FLEX = $(CROSS_COMPILE)flex
-BISON= $(CROSS_COMPILE)bison
+FLEX = flex
+BISON= bison
 
-event-parser:
-        $(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c
+$(OUTPUT)util/parse-events-flex.c: util/parse-events.l
         $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c
 
-$(OUTPUT)util/parse-events-flex.c: event-parser
-$(OUTPUT)util/parse-events-bison.c: event-parser
+$(OUTPUT)util/parse-events-bison.c: util/parse-events.y
+        $(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c
 
-pmu-parser:
-        $(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c
+$(OUTPUT)util/pmu-flex.c: util/pmu.l
         $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c
 
-$(OUTPUT)util/pmu-flex.c: pmu-parser
-$(OUTPUT)util/pmu-bison.c: pmu-parser
+$(OUTPUT)util/pmu-bison.c: util/pmu.y
+        $(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c
 
-$(OUTPUT)util/parse-events.o: event-parser pmu-parser
+$(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c
+$(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c
 
 LIB_FILE=$(OUTPUT)libperf.a
 
@@ -527,7 +526,7 @@ else
 endif
 
 ifdef NO_GTK2
-        BASIC_CFLAGS += -DNO_GTK2
+        BASIC_CFLAGS += -DNO_GTK2_SUPPORT
 else
         FLAGS_GTK2=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) $(shell pkg-config --libs --cflags gtk+-2.0)
         ifneq ($(call try-cc,$(SOURCE_GTK2),$(FLAGS_GTK2)),y)
@@ -852,8 +851,6 @@ help:
         @echo '  html           - make html documentation'
         @echo '  info           - make GNU info documentation (access with info <foo>)'
         @echo '  pdf            - make pdf documentation'
-        @echo '  event-parser   - make event parser code'
-        @echo '  pmu-parser     - make pmu format parser code'
         @echo '  TAGS           - use etags to make tag information for source browsing'
         @echo '  tags           - use ctags to make tag information for source browsing'
         @echo '  cscope - use cscope to make interactive browsing database'
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 2e317438980b..cdae9b2db1cc 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -374,16 +374,23 @@ static int __cmd_report(struct perf_report *rep)
             (kernel_map->dso->hit &&
              (kernel_kmap->ref_reloc_sym == NULL ||
               kernel_kmap->ref_reloc_sym->addr == 0))) {
-                const struct dso *kdso = kernel_map->dso;
+                const char *desc =
+                    "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
+                    "can't be resolved.";
+
+                if (kernel_map) {
+                        const struct dso *kdso = kernel_map->dso;
+                        if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) {
+                                desc = "If some relocation was applied (e.g. "
+                                       "kexec) symbols may be misresolved.";
+                        }
+                }
 
                 ui__warning(
 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 "Samples in kernel modules can't be resolved as well.\n\n",
-                            RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION]) ?
-"As no suitable kallsyms nor vmlinux was found, kernel samples\n"
-"can't be resolved." :
-"If some relocation was applied (e.g. kexec) symbols may be misresolved.");
+                desc);
         }
 
         if (dump_trace) {
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index 1c5b9801ac61..223ffdcc0fd8 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -851,6 +851,28 @@ static int test__checkevent_symbolic_name_modifier(struct perf_evlist *evlist)
         return test__checkevent_symbolic_name(evlist);
 }
 
+static int test__checkevent_exclude_host_modifier(struct perf_evlist *evlist)
+{
+        struct perf_evsel *evsel = list_entry(evlist->entries.next,
+                                              struct perf_evsel, node);
+
+        TEST_ASSERT_VAL("wrong exclude guest", !evsel->attr.exclude_guest);
+        TEST_ASSERT_VAL("wrong exclude host", evsel->attr.exclude_host);
+
+        return test__checkevent_symbolic_name(evlist);
+}
+
+static int test__checkevent_exclude_guest_modifier(struct perf_evlist *evlist)
+{
+        struct perf_evsel *evsel = list_entry(evlist->entries.next,
+                                              struct perf_evsel, node);
+
+        TEST_ASSERT_VAL("wrong exclude guest", evsel->attr.exclude_guest);
+        TEST_ASSERT_VAL("wrong exclude host", !evsel->attr.exclude_host);
+
+        return test__checkevent_symbolic_name(evlist);
+}
+
 static int test__checkevent_symbolic_alias_modifier(struct perf_evlist *evlist)
 {
         struct perf_evsel *evsel = list_entry(evlist->entries.next,
@@ -1091,6 +1113,14 @@ static struct test__event_st {
                 .name  = "r1,syscalls:sys_enter_open:k,1:1:hp",
                 .check = test__checkevent_list,
         },
+        {
+                .name  = "instructions:G",
+                .check = test__checkevent_exclude_host_modifier,
+        },
+        {
+                .name  = "instructions:H",
+                .check = test__checkevent_exclude_guest_modifier,
+        },
 };
 
 #define TEST__EVENTS_CNT (sizeof(test__events) / sizeof(struct test__event_st))
diff --git a/tools/perf/perf-archive.sh b/tools/perf/perf-archive.sh
index 677e59d62a8d..95b6f8b6177a 100644
--- a/tools/perf/perf-archive.sh
+++ b/tools/perf/perf-archive.sh
@@ -29,13 +29,14 @@ if [ ! -s $BUILDIDS ] ; then
 fi
 
 MANIFEST=$(mktemp /tmp/perf-archive-manifest.XXXXXX)
+PERF_BUILDID_LINKDIR=$(readlink -f $PERF_BUILDID_DIR)/
 
 cut -d ' ' -f 1 $BUILDIDS | \
 while read build_id ; do
         linkname=$PERF_BUILDID_DIR.build-id/${build_id:0:2}/${build_id:2}
         filename=$(readlink -f $linkname)
         echo ${linkname#$PERF_BUILDID_DIR} >> $MANIFEST
-        echo ${filename#$PERF_BUILDID_DIR} >> $MANIFEST
+        echo ${filename#$PERF_BUILDID_LINKDIR} >> $MANIFEST
 done
 
 tar cfj $PERF_DATA.tar.bz2 -C $PERF_BUILDID_DIR -T $MANIFEST
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 05d766e3ecb5..1fcf1bbc5458 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -54,7 +54,7 @@ num_dec		[0-9]+
 num_hex         0x[a-fA-F0-9]+
 num_raw_hex     [a-fA-F0-9]+
 name            [a-zA-Z_*?][a-zA-Z0-9_*?]*
-modifier_event  [ukhp]{1,5}
+modifier_event  [ukhpGH]{1,8}
 modifier_bp     [rwx]
 
 %%
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 00923cda4d9c..1efd3bee6336 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -876,11 +876,11 @@ static int perf_session_deliver_event(struct perf_session *session,
                 dump_sample(session, event, sample);
                 if (evsel == NULL) {
                         ++session->hists.stats.nr_unknown_id;
-                        return -1;
+                        return 0;
                 }
                 if (machine == NULL) {
                         ++session->hists.stats.nr_unprocessable_samples;
-                        return -1;
+                        return 0;
                 }
                 return tool->sample(tool, event, sample, evsel, machine);
         case PERF_RECORD_MMAP:
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index c0a028c3ebaf..ab9867b2b433 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -977,8 +977,9 @@ static Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
  * And always look at the original dso, not at debuginfo packages, that
  * have the PLT data stripped out (shdr_rel_plt.sh_type == SHT_NOBITS).
  */
-static int dso__synthesize_plt_symbols(struct  dso *dso, struct map *map,
-                                       symbol_filter_t filter)
+static int
+dso__synthesize_plt_symbols(struct dso *dso, char *name, struct map *map,
+                            symbol_filter_t filter)
 {
         uint32_t nr_rel_entries, idx;
         GElf_Sym sym;
@@ -993,10 +994,7 @@ static int dso__synthesize_plt_symbols(struct  dso *dso, struct map *map,
         char sympltname[1024];
         Elf *elf;
         int nr = 0, symidx, fd, err = 0;
-        char name[PATH_MAX];
 
-        snprintf(name, sizeof(name), "%s%s",
-                 symbol_conf.symfs, dso->long_name);
         fd = open(name, O_RDONLY);
         if (fd < 0)
                 goto out;
@@ -1703,8 +1701,9 @@ restart:
                         continue;
 
                 if (ret > 0) {
-                        int nr_plt = dso__synthesize_plt_symbols(dso, map,
-                                                                 filter);
+                        int nr_plt;
+
+                        nr_plt = dso__synthesize_plt_symbols(dso, name, map, filter);
                         if (nr_plt > 0)
                                 ret += nr_plt;
                         break;
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 95d6a6f7c33a..4915408f6a98 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -183,6 +183,9 @@ my %force_config;
 # do not force reboots on config problems
 my $no_reboot = 1;
 
+# reboot on success
+my $reboot_success = 0;
+
 my %option_map = (
     "MACHINE"                   => \$machine,
     "SSH_USER"                  => \$ssh_user,
@@ -2192,7 +2195,7 @@ sub run_bisect {
     }
 
     # Are we looking for where it worked, not failed?
-    if ($reverse_bisect) {
+    if ($reverse_bisect && $ret >= 0) {
         $ret = !$ret;
     }
 
@@ -3469,6 +3472,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
 
     # Do not reboot on failing test options
     $no_reboot = 1;
+    $reboot_success = 0;
 
     $iteration = $i;
 
@@ -3554,9 +3558,11 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
             die "failed to checkout $checkout";
     }
 
+    $no_reboot = 0;
+
     # A test may opt to not reboot the box
     if ($reboot_on_success) {
-        $no_reboot = 0;
+        $reboot_success = 1;
     }
 
     if ($test_type eq "bisect") {
@@ -3600,7 +3606,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
 
 if ($opt{"POWEROFF_ON_SUCCESS"}) {
     halt;
-} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot) {
+} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
     reboot_to_good;
 } elsif (defined($switch_to_good)) {
     # still need to get to the good kernel