linux-kernel - [PATCH] perf callchain: Remove unused callchain_branch

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Message-ID: <20241006012204.373803-1-linux@treblig.org>
Date: Sun,  6 Oct 2024 02:22:04 +0100
From: linux@...blig.org
To: peterz@...radead.org,
	mingo@...hat.com,
	acme@...nel.org,
	namhyung@...nel.org,
	mark.rutland@....com,
	alexander.shishkin@...ux.intel.com,
	jolsa@...nel.org,
	irogers@...gle.com,
	adrian.hunter@...el.com,
	kan.liang@...ux.intel.com
Cc: linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] perf callchain: Remove unused callchain_branch_counts

From: "Dr. David Alan Gilbert" <linux@...blig.org>

callchain_branch_counts() was added in 2016 by commit
3dd029ef9401 ("perf report: Calculate and return the branch flag counting")
but unused.

Remove it and it's helpers.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 tools/perf/util/callchain.c | 71 -------------------------------------
 tools/perf/util/callchain.h |  4 ---
 2 files changed, 75 deletions(-)

diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 0c7564747a14..11435b72afbe 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -1266,77 +1266,6 @@ int callchain_node__fprintf_value(struct callchain_node *node,
 	return 0;
 }
 
-static void callchain_counts_value(struct callchain_node *node,
-				   u64 *branch_count, u64 *predicted_count,
-				   u64 *abort_count, u64 *cycles_count)
-{
-	struct callchain_list *clist;
-
-	list_for_each_entry(clist, &node->val, list) {
-		if (branch_count)
-			*branch_count += clist->branch_count;
-
-		if (predicted_count)
-			*predicted_count += clist->predicted_count;
-
-		if (abort_count)
-			*abort_count += clist->abort_count;
-
-		if (cycles_count)
-			*cycles_count += clist->cycles_count;
-	}
-}
-
-static int callchain_node_branch_counts_cumul(struct callchain_node *node,
-					      u64 *branch_count,
-					      u64 *predicted_count,
-					      u64 *abort_count,
-					      u64 *cycles_count)
-{
-	struct callchain_node *child;
-	struct rb_node *n;
-
-	n = rb_first(&node->rb_root_in);
-	while (n) {
-		child = rb_entry(n, struct callchain_node, rb_node_in);
-		n = rb_next(n);
-
-		callchain_node_branch_counts_cumul(child, branch_count,
-						   predicted_count,
-						   abort_count,
-						   cycles_count);
-
-		callchain_counts_value(child, branch_count,
-				       predicted_count, abort_count,
-				       cycles_count);
-	}
-
-	return 0;
-}
-
-int callchain_branch_counts(struct callchain_root *root,
-			    u64 *branch_count, u64 *predicted_count,
-			    u64 *abort_count, u64 *cycles_count)
-{
-	if (branch_count)
-		*branch_count = 0;
-
-	if (predicted_count)
-		*predicted_count = 0;
-
-	if (abort_count)
-		*abort_count = 0;
-
-	if (cycles_count)
-		*cycles_count = 0;
-
-	return callchain_node_branch_counts_cumul(&root->node,
-						  branch_count,
-						  predicted_count,
-						  abort_count,
-						  cycles_count);
-}
-
 static int count_pri64_printf(int idx, const char *str, u64 value, char *bf, int bfsize)
 {
 	return scnprintf(bf, bfsize, "%s%s:%" PRId64 "", (idx) ? " " : " (", str, value);
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 86ed9e4d04f9..d7741fa9e9de 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -298,10 +298,6 @@ void free_callchain(struct callchain_root *root);
 void decay_callchain(struct callchain_root *root);
 int callchain_node__make_parent_list(struct callchain_node *node);
 
-int callchain_branch_counts(struct callchain_root *root,
-			    u64 *branch_count, u64 *predicted_count,
-			    u64 *abort_count, u64 *cycles_count);
-
 void callchain_param_setup(u64 sample_type, const char *arch);
 
 bool callchain_cnode_matched(struct callchain_node *base_cnode,
-- 
2.46.2