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ionic: use offset for ethtool regs data

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[ Upstream commit f85ae16f924f92a370b81b4e77862c1c59882fce ]

Use an offset to write the second half of the regs data into the
second half of the buffer instead of overwriting the first half.

Fixes: 4d03e00a21 ("ionic: Add initial ethtool support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Shannon Nelson 2020-07-20 16:00:13 -07:00 • committed by Greg Kroah-Hartman
commit 42f5c49f7b
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
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@ -102,15 +102,18 @@ static void ionic_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
void *p)
{
struct ionic_lif *lif = netdev_priv(netdev);
unsigned int offset;
unsigned int size;
regs->version = IONIC_DEV_CMD_REG_VERSION;
offset = 0;
size = IONIC_DEV_INFO_REG_COUNT * sizeof(u32);
memcpy_fromio(p, lif->ionic->idev.dev_info_regs->words, size);
memcpy_fromio(p + offset, lif->ionic->idev.dev_info_regs->words, size);
offset += size;
size = IONIC_DEV_CMD_REG_COUNT * sizeof(u32);
memcpy_fromio(p, lif->ionic->idev.dev_cmd_regs->words, size);
memcpy_fromio(p + offset, lif->ionic->idev.dev_cmd_regs->words, size);
}
static int ionic_get_link_ksettings(struct net_device *netdev,