linux-kernel - [PATCH 4.4 252/312] net: bcmgenet: device stats are unsigned long

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Message-Id: <20200508123142.135187266@linuxfoundation.org>
Date:   Fri,  8 May 2020 14:34:03 +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, Eric Dumazet <edumazet@...gle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.4 252/312] net: bcmgenet: device stats are unsigned long

From: Eric Dumazet <edumazet@...gle.com>

commit 6517eb59b03965689e6bb16bb2d480096b3ef95d upstream.

On 64bit kernels, device stats are 64bit wide, not 32bit.

Fixes: 1c1008c793fa4 ("net: bcmgenet: add main driver file")
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Cc: Florian Fainelli <f.fainelli@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -927,7 +927,11 @@ static void bcmgenet_get_ethtool_stats(s
 		else
 			p = (char *)priv;
 		p += s->stat_offset;
-		data[i] = *(u32 *)p;
+		if (sizeof(unsigned long) != sizeof(u32) &&
+		    s->stat_sizeof == sizeof(unsigned long))
+			data[i] = *(unsigned long *)p;
+		else
+			data[i] = *(u32 *)p;
 	}
 }