linux-kernel - [PATCH][next] tpm: remove redundant variable len

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230616170730.2343540-1-colin.i.king@gmail.com>
Date:   Fri, 16 Jun 2023 18:07:30 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Peter Huewe <peterhuewe@....de>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Jason Gunthorpe <jgg@...pe.ca>, linux-integrity@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] tpm: remove redundant variable len

Variable len is being accumulated but the value is never read. It is
redundant and can be removed. Cleans up clang scan build warning:

drivers/char/tpm/eventlog/tpm1.c:276:2: warning: Value stored to 'len' is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/char/tpm/eventlog/tpm1.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/tpm/eventlog/tpm1.c b/drivers/char/tpm/eventlog/tpm1.c
index 8aa9057601d6..12ee42a31c71 100644
--- a/drivers/char/tpm/eventlog/tpm1.c
+++ b/drivers/char/tpm/eventlog/tpm1.c
@@ -251,7 +251,6 @@ static int tpm1_binary_bios_measurements_show(struct seq_file *m, void *v)
 
 static int tpm1_ascii_bios_measurements_show(struct seq_file *m, void *v)
 {
-	int len = 0;
 	char *eventname;
 	struct tcpa_event *event = v;
 	unsigned char *event_entry =
@@ -273,7 +272,7 @@ static int tpm1_ascii_bios_measurements_show(struct seq_file *m, void *v)
 	/* 3rd: event type identifier */
 	seq_printf(m, " %02x", do_endian_conversion(event->event_type));
 
-	len += get_event_name(eventname, event, event_entry);
+	get_event_name(eventname, event, event_entry);
 
 	/* 4th: eventname <= max + \'0' delimiter */
 	seq_printf(m, " %s\n", eventname);
-- 
2.39.2