diff options
Diffstat (limited to 'target/linux/mvebu/patches-4.4/036-net-mvneta-fix-trivial-cut-off-issue-in-mvneta_ethto.patch')
| -rw-r--r-- | target/linux/mvebu/patches-4.4/036-net-mvneta-fix-trivial-cut-off-issue-in-mvneta_ethto.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-4.4/036-net-mvneta-fix-trivial-cut-off-issue-in-mvneta_ethto.patch b/target/linux/mvebu/patches-4.4/036-net-mvneta-fix-trivial-cut-off-issue-in-mvneta_ethto.patch new file mode 100644 index 0000000000..2bd7a88032 --- /dev/null +++ b/target/linux/mvebu/patches-4.4/036-net-mvneta-fix-trivial-cut-off-issue-in-mvneta_ethto.patch @@ -0,0 +1,46 @@ +From: Jisheng Zhang <jszhang@marvell.com> +Date: Wed, 20 Jan 2016 16:36:25 +0800 +Subject: [PATCH] net: mvneta: fix trivial cut-off issue in + mvneta_ethtool_update_stats + +When s->type is T_REG_64, the high 32bits are lost in val. This patch +fixes this trivial issue. + +Signed-off-by: Jisheng Zhang <jszhang@marvell.com> +Fixes: 9b0cdefa4cd5 ("net: mvneta: add ethtool statistics") +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + +--- a/drivers/net/ethernet/marvell/mvneta.c ++++ b/drivers/net/ethernet/marvell/mvneta.c +@@ -3242,26 +3242,25 @@ static void mvneta_ethtool_update_stats( + const struct mvneta_statistic *s; + void __iomem *base = pp->base; + u32 high, low, val; ++ u64 val64; + int i; + + for (i = 0, s = mvneta_statistics; + s < mvneta_statistics + ARRAY_SIZE(mvneta_statistics); + s++, i++) { +- val = 0; +- + switch (s->type) { + case T_REG_32: + val = readl_relaxed(base + s->offset); ++ pp->ethtool_stats[i] += val; + break; + case T_REG_64: + /* Docs say to read low 32-bit then high */ + low = readl_relaxed(base + s->offset); + high = readl_relaxed(base + s->offset + 4); +- val = (u64)high << 32 | low; ++ val64 = (u64)high << 32 | low; ++ pp->ethtool_stats[i] += val64; + break; + } +- +- pp->ethtool_stats[i] += val; + } + } + |