linux-kernel - [PATCH] thunderbolt: remove redundant assignment to variable len

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Message-Id: <20221019225709.1506515-1-colin.i.king@gmail.com>
Date:   Wed, 19 Oct 2022 23:57:09 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Andreas Noever <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>,
        linux-usb@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] thunderbolt: remove redundant assignment to variable len

The variable len is assigned a value that is never read. It is re-assigned
a new value in the following do-while loop and never referenced after
the loop. The assignment is redundant and can be removed.

Cleans up clang scan build warning:
drivers/thunderbolt/xdomain.c:344:2: warning: Value stored to 'len' is
never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/thunderbolt/xdomain.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c
index f00b2f62d8e3..5e99f93ee1a1 100644
--- a/drivers/thunderbolt/xdomain.c
+++ b/drivers/thunderbolt/xdomain.c
@@ -341,7 +341,6 @@ static int tb_xdp_properties_request(struct tb_ctl *ctl, u64 route,
 	memcpy(&req.src_uuid, src_uuid, sizeof(*src_uuid));
 	memcpy(&req.dst_uuid, dst_uuid, sizeof(*dst_uuid));
 
-	len = 0;
 	data_len = 0;
 
 	do {
-- 
2.37.3