From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 25/63] e1000e: Fix -Wformat-truncation warnings
Date: Wed, 27 Mar 2019 14:22:45 -0400 [thread overview]
Message-ID: <20190327182323.18577-25-sashal@kernel.org> (raw)
In-Reply-To: <20190327182323.18577-1-sashal@kernel.org>
From: Florian Fainelli <f.fainelli@gmail.com>
[ Upstream commit 135e7245479addc6b1f5d031e3d7e2ddb3d2b109 ]
Provide precision hints to snprintf() since we know the destination
buffer size of the RX/TX ring names are IFNAMSIZ + 5 - 1. This fixes the
following warnings:
drivers/net/ethernet/intel/e1000e/netdev.c: In function
'e1000_request_msix':
drivers/net/ethernet/intel/e1000e/netdev.c:2109:13: warning: 'snprintf'
output may be truncated before the last format character
[-Wformat-truncation=]
"%s-rx-0", netdev->name);
^
drivers/net/ethernet/intel/e1000e/netdev.c:2107:3: note: 'snprintf'
output between 6 and 21 bytes into a destination of size 20
snprintf(adapter->rx_ring->name,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sizeof(adapter->rx_ring->name) - 1,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"%s-rx-0", netdev->name);
~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/e1000e/netdev.c:2125:13: warning: 'snprintf'
output may be truncated before the last format character
[-Wformat-truncation=]
"%s-tx-0", netdev->name);
^
drivers/net/ethernet/intel/e1000e/netdev.c:2123:3: note: 'snprintf'
output between 6 and 21 bytes into a destination of size 20
snprintf(adapter->tx_ring->name,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sizeof(adapter->tx_ring->name) - 1,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"%s-tx-0", netdev->name);
~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/intel/e1000e/netdev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 6369d88b81c1..6b1cacd86c6e 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -2131,7 +2131,7 @@ static int e1000_request_msix(struct e1000_adapter *adapter)
if (strlen(netdev->name) < (IFNAMSIZ - 5))
snprintf(adapter->rx_ring->name,
sizeof(adapter->rx_ring->name) - 1,
- "%s-rx-0", netdev->name);
+ "%.14s-rx-0", netdev->name);
else
memcpy(adapter->rx_ring->name, netdev->name, IFNAMSIZ);
err = request_irq(adapter->msix_entries[vector].vector,
@@ -2147,7 +2147,7 @@ static int e1000_request_msix(struct e1000_adapter *adapter)
if (strlen(netdev->name) < (IFNAMSIZ - 5))
snprintf(adapter->tx_ring->name,
sizeof(adapter->tx_ring->name) - 1,
- "%s-tx-0", netdev->name);
+ "%.14s-tx-0", netdev->name);
else
memcpy(adapter->tx_ring->name, netdev->name, IFNAMSIZ);
err = request_irq(adapter->msix_entries[vector].vector,
--
2.19.1
next prev parent reply other threads:[~2019-03-27 18:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190327182323.18577-1-sashal@kernel.org>
2019-03-27 18:22 ` [PATCH AUTOSEL 4.4 07/63] enic: fix build warning without CONFIG_CPUMASK_OFFSTACK Sasha Levin
2019-03-27 18:22 ` Sasha Levin [this message]
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 44/63] e1000e: fix cyclic resets at link up with active tx Sasha Levin
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 48/63] mt7601u: bump supported EEPROM version Sasha Levin
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 54/63] Bluetooth: Verify that l2cap_get_conf_opt provides large enough buffer Sasha Levin
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 57/63] netfilter: physdev: relax br_netfilter dependency Sasha Levin
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 60/63] wlcore: Fix memory leak in case wl12xx_fetch_firmware failure Sasha Levin
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