linux-kernel - [PATCH] tools:perf:scripts:python:intel-pt-events del unusedvar

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Date:   Sat,  7 Jan 2023 02:56:13 +0500
From:   Alexander Pantyukhin <apantykhin@...il.com>
To:     peterz@...radead.org, akpm@...ux-foundation.org
Cc:     mingo@...hat.com, namhyung@...nel.org, jolsa@...nel.org,
        acme@...nel.org, linux-perf-users@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Alexander Pantyukhin <apantykhin@...il.com>
Subject: [PATCH] tools:perf:scripts:python:intel-pt-events del unusedvar

The event_attr is never used later, the var is ok be deleted.
Additional code simplification is to substitute string slice comparison
with "substring" function. This case no need to know the length specific
words.

Signed-off-by: Alexander Pantyukhin <apantykhin@...il.com>
---
 tools/perf/scripts/python/intel-pt-events.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/perf/scripts/python/intel-pt-events.py b/tools/perf/scripts/python/intel-pt-events.py
index 08862a2582f4..28d08e2fb7cd 100644
--- a/tools/perf/scripts/python/intel-pt-events.py
+++ b/tools/perf/scripts/python/intel-pt-events.py
@@ -340,7 +340,6 @@ def print_srccode(comm, param_dict, sample, symbol, dso, with_insn):
 	print(start_str, src_str)
 
 def do_process_event(param_dict):
-	event_attr = param_dict["attr"]
 	sample	   = param_dict["sample"]
 	raw_buf	   = param_dict["raw_buf"]
 	comm	   = param_dict["comm"]
@@ -359,13 +358,13 @@ def do_process_event(param_dict):
 		print(glb_switch_str[cpu])
 		del glb_switch_str[cpu]
 
-	if name[0:12] == "instructions":
+	if name.startswith("instructions"):
 		if glb_src:
 			print_srccode(comm, param_dict, sample, symbol, dso, True)
 		else:
 			print_instructions_start(comm, sample)
 			print_common_ip(param_dict, sample, symbol, dso)
-	elif name[0:8] == "branches":
+	elif name.startswith("branches"):
 		if glb_src:
 			print_srccode(comm, param_dict, sample, symbol, dso, False)
 		else:
-- 
2.25.1