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msm: ipa: fix split packet handling

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Fix packet handling in case packet received from IPA hardware
is scattered across multiple buffers.

Change-Id: I4935ecb8eaa438d259c1c27a66f62c78f874c9ee
CRs-Fixed: 1097420
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
This commit is contained in:
Skylar Chang 2016-12-05 18:10:19 -08:00 • committed by Gerrit - the friendly Code Review server
parent 3162449f7d
commit c5301546e5
1 changed files with 4 additions and 2 deletions
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6
drivers/platform/msm/ipa/ipa_v2/ipa_dp.c
View file

@ -2328,6 +2328,7 @@ static int ipa_lan_rx_pyld_hdlr(struct sk_buff *skb,
unsigned int used = *(unsigned int *)skb->cb;
unsigned int used_align = ALIGN(used, 32);
unsigned long unused = IPA_GENERIC_RX_BUFF_BASE_SZ - used;
u32 skb2_len;
IPA_DUMP_BUFF(skb->data, 0, skb->len);
@ -2510,8 +2511,9 @@ begin:
sys->drop_packet = true;
}
skb2 = ipa_skb_copy_for_client(skb,
status->pkt_len + IPA_PKT_STATUS_SIZE);
skb2_len = status->pkt_len + IPA_PKT_STATUS_SIZE;
skb2_len = min(skb2_len, skb->len);
skb2 = ipa_skb_copy_for_client(skb, skb2_len);
if (likely(skb2)) {
if (skb->len < len + IPA_PKT_STATUS_SIZE) {
IPADBG("SPL skb len %d len %d\n",