linux-kernel - [PATCH 5.15 068/135] selftests/net: so_txtime: fix parsing of start time stamp on 32 bit systems

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Date:   Tue, 10 May 2022 15:07:30 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Carlos Llamas <cmllamas@...gle.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH 5.15 068/135] selftests/net: so_txtime: fix parsing of start time stamp on 32 bit systems

From: Marc Kleine-Budde <mkl@...gutronix.de>

commit 97926d5a847ca1758ad8702ce591e3b05a701e0d upstream.

This patch fixes the parsing of the cmd line supplied start time on 32
bit systems. A "long" on 32 bit systems is only 32 bit wide and cannot
hold a timestamp in nano second resolution.

Fixes: 040806343bb4 ("selftests/net: so_txtime multi-host support")
Cc: Carlos Llamas <cmllamas@...gle.com>
Cc: Willem de Bruijn <willemb@...gle.com>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
Acked-by: Willem de Bruijn <willemb@...gle.com>
Reviewed-by: Carlos Llamas <cmllamas@...gle.com>
Link: https://lore.kernel.org/r/20220502094638.1921702-2-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 tools/testing/selftests/net/so_txtime.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/selftests/net/so_txtime.c
+++ b/tools/testing/selftests/net/so_txtime.c
@@ -475,7 +475,7 @@ static void parse_opts(int argc, char **
 			cfg_rx = true;
 			break;
 		case 't':
-			cfg_start_time_ns = strtol(optarg, NULL, 0);
+			cfg_start_time_ns = strtoll(optarg, NULL, 0);
 			break;
 		case 'm':
 			cfg_mark = strtol(optarg, NULL, 0);