diff options
| -rw-r--r-- | drivers/platform/msm/ipa/ipa_v2/ipa_dp.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/platform/msm/ipa/ipa_v2/ipa_dp.c b/drivers/platform/msm/ipa/ipa_v2/ipa_dp.c index 0bb863037772..005508fdcdc1 100644 --- a/drivers/platform/msm/ipa/ipa_v2/ipa_dp.c +++ b/drivers/platform/msm/ipa/ipa_v2/ipa_dp.c @@ -40,6 +40,8 @@ IPA_GENERIC_RX_BUFF_BASE_SZ) -\ IPA_GENERIC_RX_BUFF_BASE_SZ) +#define IPA_RX_BUFF_CLIENT_HEADROOM 256 + /* less 1 nominal MTU (1500 bytes) rounded to units of KB */ #define IPA_ADJUST_AGGR_BYTE_LIMIT(X) (((X) - IPA_MTU)/1000) @@ -2288,6 +2290,21 @@ static void ipa_cleanup_rx(struct ipa_sys_context *sys) } } +static struct sk_buff *ipa_skb_copy_for_client(struct sk_buff *skb, int len) +{ + struct sk_buff *skb2 = NULL; + + skb2 = __dev_alloc_skb(len + IPA_RX_BUFF_CLIENT_HEADROOM, GFP_KERNEL); + if (likely(skb2)) { + /* Set the data pointer */ + skb_reserve(skb2, IPA_RX_BUFF_CLIENT_HEADROOM); + memcpy(skb2->data, skb->data, len); + skb2->len = len; + skb_set_tail_pointer(skb2, len); + } + + return skb2; +} static int ipa_lan_rx_pyld_hdlr(struct sk_buff *skb, struct ipa_sys_context *sys) @@ -2484,7 +2501,8 @@ begin: sys->drop_packet = true; } - skb2 = skb_clone(skb, GFP_KERNEL); + skb2 = ipa_skb_copy_for_client(skb, + status->pkt_len + IPA_PKT_STATUS_SIZE); if (likely(skb2)) { if (skb->len < len + IPA_PKT_STATUS_SIZE) { IPADBG("SPL skb len %d len %d\n", @@ -2527,7 +2545,7 @@ begin: IPA_PKT_STATUS_SIZE); } } else { - IPAERR("fail to clone\n"); + IPAERR("fail to alloc skb\n"); if (skb->len < len) { sys->prev_skb = NULL; sys->len_rem = len - skb->len + |