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path: root/drivers/net/sfc/sfc_tso.c
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Diffstat (limited to 'drivers/net/sfc/sfc_tso.c')
-rw-r--r--drivers/net/sfc/sfc_tso.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/sfc/sfc_tso.c b/drivers/net/sfc/sfc_tso.c
index 076a25d4..a28af0e7 100644
--- a/drivers/net/sfc/sfc_tso.c
+++ b/drivers/net/sfc/sfc_tso.c
@@ -107,10 +107,6 @@ sfc_efx_tso_do(struct sfc_efx_txq *txq, unsigned int idx,
idx += SFC_TSO_OPT_DESCS_NUM;
- /* Packets which have too big headers should be discarded */
- if (unlikely(header_len > SFC_TSOH_STD_LEN))
- return EMSGSIZE;
-
/*
* The TCP header must start at most 208 bytes into the frame.
* If it starts later than this then the NIC won't realise
@@ -129,6 +125,13 @@ sfc_efx_tso_do(struct sfc_efx_txq *txq, unsigned int idx,
* limitations on address boundaries crossing by DMA descriptor data.
*/
if (m->data_len < header_len) {
+ /*
+ * Discard a packet if header linearization is needed but
+ * the header is too big.
+ */
+ if (unlikely(header_len > SFC_TSOH_STD_LEN))
+ return EMSGSIZE;
+
tsoh = txq->sw_ring[idx & txq->ptr_mask].tsoh;
sfc_tso_prepare_header(tsoh, header_len, in_seg, in_off);