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net: wwan: Fix MRU mismatch issue which may lead to data connection lost

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In pci_generic.c there is a 'mru_default' in struct mhi_pci_dev_info.
This value shall be used for whole mhi if it's given a value for a specific product.
But in function mhi_net_rx_refill_work(), it's still using hard code value MHI_DEFAULT_MRU.
'mru_default' shall have higher priority than MHI_DEFAULT_MRU.
And after checking, this change could help fix a data connection lost issue.

Fixes: 5c2c853159 ("bus: mhi: pci-generic: configurable network interface MRU")
Signed-off-by: Shujun Wang <wsj20369@163.com>
Signed-off-by: Slark Xiao <slark_xiao@163.com>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Slark Xiao 2022-01-15 10:34:30 +08:00 committed by David S. Miller
parent 020a45aff1
commit f542cdfa30
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wwan/mhi_wwan_mbim.c
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@ -385,13 +385,13 @@ static void mhi_net_rx_refill_work(struct work_struct *work)
int err;
while (!mhi_queue_is_full(mdev, DMA_FROM_DEVICE)) {
struct sk_buff *skb = alloc_skb(MHI_DEFAULT_MRU, GFP_KERNEL);
struct sk_buff *skb = alloc_skb(mbim->mru, GFP_KERNEL);
if (unlikely(!skb))
break;
err = mhi_queue_skb(mdev, DMA_FROM_DEVICE, skb,
MHI_DEFAULT_MRU, MHI_EOT);
mbim->mru, MHI_EOT);
if (unlikely(err)) {
kfree_skb(skb);
break;