netdev - i40e_pto.c: Odd use of strlcpy converted from strncpy

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Message-ID: <edf91d8284a2a19d956eb8b7e8b6c4984ceaa1ab.camel@perches.com>
Date:   Sun, 06 Oct 2019 10:19:10 -0700
From:   Joe Perches <joe@...ches.com>
To:     Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        intel-wired-lan@...ts.osuosl.org, netdev <netdev@...r.kernel.org>
Cc:     Mitch Williams <mitch.a.williams@...el.com>,
        Patryk Małek <patryk.malek@...el.com>
Subject: i40e_pto.c: Odd use of strlcpy converted from strncpy

This got converted from strncpy to strlcpy but it's
now not necessary to use one character less than the
actual size.

Perhaps the sizeof() - 1 is now not correct and it
should use strscpy and a normal sizeof.

from:

commit 7eb74ff891b4e94b8bac48f648a21e4b94ddee64
Author: Mitch Williams <mitch.a.williams@...el.com>
Date:   Mon Aug 20 08:12:30 2018 -0700

    i40e: use correct length for strncpy

and

commit 4ff2d8540321324e04c1306f85d4fe68a0c2d0ae
Author: Patryk Małek <patryk.malek@...el.com>
Date:   Tue Oct 30 10:50:44 2018 -0700

    i40e: Replace strncpy with strlcpy to ensure null termination
---
 drivers/net/ethernet/intel/i40e/i40e_ptp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
index 9bf1ad4319f5..627b1c02bb4b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
@@ -700,8 +700,8 @@ static long i40e_ptp_create_clock(struct i40e_pf *pf)
 	if (!IS_ERR_OR_NULL(pf->ptp_clock))
 		return 0;
 
-	strlcpy(pf->ptp_caps.name, i40e_driver_name,
-		sizeof(pf->ptp_caps.name) - 1);
+	strscpy(pf->ptp_caps.name, i40e_driver_name, sizeof(pf->ptp_caps.name));
+
 	pf->ptp_caps.owner = THIS_MODULE;
 	pf->ptp_caps.max_adj = 999999999;
 	pf->ptp_caps.n_ext_ts = 0;