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Subject[PATCH 4.14 12/27] cxgb4: use unaligned conversion for fetching timestamp
Date
From: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

[ Upstream commit 589b1c9c166dce120e27b32a83a78f55464a7ef9 ]

Use get_unaligned_be64() to fetch the timestamp needed for ns_to_ktime()
conversion.

Fixes following sparse warning:
sge.c:3282:43: warning: cast to restricted __be64

Fixes: a456950445a0 ("cxgb4: time stamping interface for PTP")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/chelsio/cxgb4/sge.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index 4ef68f69b58c4..0a5c4c7da5052 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -2088,7 +2088,7 @@ static noinline int t4_systim_to_hwstamp(struct adapter *adapter,

hwtstamps = skb_hwtstamps(skb);
memset(hwtstamps, 0, sizeof(*hwtstamps));
- hwtstamps->hwtstamp = ns_to_ktime(be64_to_cpu(*((u64 *)data)));
+ hwtstamps->hwtstamp = ns_to_ktime(get_unaligned_be64(data));

return RX_PTP_PKT_SUC;
}
--
2.25.1


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