Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c
index 48428c9..8e744af 100644
--- a/tools/perf/ui/gtk/annotate.c
+++ b/tools/perf/ui/gtk/annotate.c
@@ -1,8 +1,12 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "gtk.h"
+#include "util/sort.h"
 #include "util/debug.h"
 #include "util/annotate.h"
 #include "util/evsel.h"
+#include "util/map.h"
+#include "util/dso.h"
+#include "util/symbol.h"
 #include "ui/helpline.h"
 #include <inttypes.h>
 #include <signal.h>
@@ -88,7 +92,7 @@
 }
 
 static int perf_gtk__annotate_symbol(GtkWidget *window, struct symbol *sym,
-				struct map *map, struct perf_evsel *evsel,
+				struct map *map, struct evsel *evsel,
 				struct hist_browser_timer *hbt __maybe_unused)
 {
 	struct disasm_line *pos, *n;
@@ -126,7 +130,7 @@
 		gtk_list_store_append(store, &iter);
 
 		if (perf_evsel__is_group_event(evsel)) {
-			for (i = 0; i < evsel->nr_members; i++) {
+			for (i = 0; i < evsel->core.nr_members; i++) {
 				ret += perf_gtk__get_percent(s + ret,
 							     sizeof(s) - ret,
 							     sym, pos,
@@ -149,7 +153,7 @@
 	gtk_container_add(GTK_CONTAINER(window), view);
 
 	list_for_each_entry_safe(pos, n, &notes->src->source, al.node) {
-		list_del(&pos->al.node);
+		list_del_init(&pos->al.node);
 		disasm_line__free(pos);
 	}
 
@@ -157,7 +161,7 @@
 }
 
 static int symbol__gtk_annotate(struct symbol *sym, struct map *map,
-				struct perf_evsel *evsel,
+				struct evsel *evsel,
 				struct hist_browser_timer *hbt)
 {
 	GtkWidget *window;
@@ -235,7 +239,7 @@
 }
 
 int hist_entry__gtk_annotate(struct hist_entry *he,
-			     struct perf_evsel *evsel,
+			     struct evsel *evsel,
 			     struct hist_browser_timer *hbt)
 {
 	return symbol__gtk_annotate(he->ms.sym, he->ms.map, evsel, hbt);
diff --git a/tools/perf/ui/gtk/browser.c b/tools/perf/ui/gtk/browser.c
index 4820e25..8f3e43d 100644
--- a/tools/perf/ui/gtk/browser.c
+++ b/tools/perf/ui/gtk/browser.c
@@ -1,6 +1,4 @@
 // SPDX-License-Identifier: GPL-2.0
-#include "../evlist.h"
-#include "../cache.h"
 #include "../evsel.h"
 #include "../sort.h"
 #include "../hist.h"
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index 9846ea5..a956393 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -52,16 +52,16 @@
 }
 #endif
 
-struct perf_evsel;
-struct perf_evlist;
+struct evsel;
+struct evlist;
 struct hist_entry;
 struct hist_browser_timer;
 
-int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help,
+int perf_evlist__gtk_browse_hists(struct evlist *evlist, const char *help,
 				  struct hist_browser_timer *hbt,
 				  float min_pcnt);
 int hist_entry__gtk_annotate(struct hist_entry *he,
-			     struct perf_evsel *evsel,
+			     struct evsel *evsel,
 			     struct hist_browser_timer *hbt);
 void perf_gtk__show_annotations(void);
 
diff --git a/tools/perf/ui/gtk/helpline.c b/tools/perf/ui/gtk/helpline.c
index fbf1ea9..e40a006 100644
--- a/tools/perf/ui/gtk/helpline.c
+++ b/tools/perf/ui/gtk/helpline.c
@@ -1,11 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <string.h>
+#include <linux/kernel.h>
 
 #include "gtk.h"
 #include "../ui.h"
 #include "../helpline.h"
-#include "../../util/debug.h"
 
 static void gtk_helpline_pop(void)
 {
diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 4ab663e..ed1a97b 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "../evlist.h"
-#include "../cache.h"
+#include "../callchain.h"
 #include "../evsel.h"
 #include "../sort.h"
 #include "../hist.h"
@@ -8,6 +8,8 @@
 #include "../string2.h"
 #include "gtk.h"
 #include <signal.h>
+#include <stdlib.h>
+#include <linux/string.h>
 
 #define MAX_COLUMNS			32
 
@@ -353,7 +355,7 @@
 
 	g_object_unref(GTK_TREE_MODEL(store));
 
-	for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
+	for (nd = rb_first_cached(&hists->entries); nd; nd = rb_next(nd)) {
 		struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
 		GtkTreeIter iter;
 		u64 total = hists__total_period(h->hists);
@@ -401,7 +403,7 @@
 }
 
 static void perf_gtk__add_hierarchy_entries(struct hists *hists,
-					    struct rb_root *root,
+					    struct rb_root_cached *root,
 					    GtkTreeStore *store,
 					    GtkTreeIter *parent,
 					    struct perf_hpp *hpp,
@@ -415,7 +417,7 @@
 	u64 total = hists__total_period(hists);
 	int size;
 
-	for (node = rb_first(root); node; node = rb_next(node)) {
+	for (node = rb_first_cached(root); node; node = rb_next(node)) {
 		GtkTreeIter iter;
 		float percent;
 		char *bf;
@@ -458,7 +460,7 @@
 			advance_hpp(hpp, ret + 2);
 		}
 
-		gtk_tree_store_set(store, &iter, col_idx, ltrim(rtrim(bf)), -1);
+		gtk_tree_store_set(store, &iter, col_idx, strim(bf), -1);
 
 		if (!he->leaf) {
 			hpp->buf = bf;
@@ -554,7 +556,7 @@
 			first_col = false;
 
 			fmt->header(fmt, &hpp, hists, 0, NULL);
-			strcat(buf, ltrim(rtrim(hpp.buf)));
+			strcat(buf, strim(hpp.buf));
 		}
 	}
 
@@ -588,12 +590,12 @@
 	gtk_container_add(GTK_CONTAINER(window), view);
 }
 
-int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
+int perf_evlist__gtk_browse_hists(struct evlist *evlist,
 				  const char *help,
 				  struct hist_browser_timer *hbt __maybe_unused,
 				  float min_pcnt)
 {
-	struct perf_evsel *pos;
+	struct evsel *pos;
 	GtkWidget *vbox;
 	GtkWidget *notebook;
 	GtkWidget *info_bar;
@@ -643,7 +645,7 @@
 			if (!perf_evsel__is_group_leader(pos))
 				continue;
 
-			if (pos->nr_members > 1) {
+			if (pos->core.nr_members > 1) {
 				perf_evsel__group_desc(pos, buf, size);
 				evname = buf;
 			}
diff --git a/tools/perf/ui/gtk/progress.c b/tools/perf/ui/gtk/progress.c
index b6ad885..eea6fcd 100644
--- a/tools/perf/ui/gtk/progress.c
+++ b/tools/perf/ui/gtk/progress.c
@@ -3,7 +3,6 @@
 
 #include "gtk.h"
 #include "../progress.h"
-#include "util.h"
 
 static GtkWidget *dialog;
 static GtkWidget *progress;
diff --git a/tools/perf/ui/gtk/setup.c b/tools/perf/ui/gtk/setup.c
index 506e73b..f5eee4d 100644
--- a/tools/perf/ui/gtk/setup.c
+++ b/tools/perf/ui/gtk/setup.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "gtk.h"
-#include "../../util/cache.h"
-#include "../../util/debug.h"
+#include <linux/compiler.h>
+#include "../util.h"
 
 extern struct perf_error_ops perf_gtk_eops;
 
diff --git a/tools/perf/ui/gtk/util.c b/tools/perf/ui/gtk/util.c
index 7250d81..c47f5c3 100644
--- a/tools/perf/ui/gtk/util.c
+++ b/tools/perf/ui/gtk/util.c
@@ -1,11 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "../util.h"
-#include "../../util/util.h"
-#include "../../util/debug.h"
 #include "gtk.h"
 
+#include <stdlib.h>
 #include <string.h>
-
+#include <linux/zalloc.h>
 
 struct perf_gtk_context *pgctx;