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path: root/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
index 5b174cb95eb8..d94081c7658e 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
@@ -16,6 +16,7 @@
#include "spectrum.h"
#include "spectrum_ptp.h"
#include "core.h"
+#include "txheader.h"
#define MLXSW_SP1_PTP_CLOCK_CYCLES_SHIFT 29
#define MLXSW_SP1_PTP_CLOCK_FREQ_KHZ 156257 /* 6.4nSec */
@@ -1684,6 +1685,12 @@ int mlxsw_sp_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core,
struct sk_buff *skb,
const struct mlxsw_tx_info *tx_info)
{
+ if (skb_cow_head(skb, MLXSW_TXHDR_LEN)) {
+ this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
+ dev_kfree_skb_any(skb);
+ return -ENOMEM;
+ }
+
mlxsw_sp_txhdr_construct(skb, tx_info);
return 0;
}