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Commit 183483ac authored by Sujeev Dias's avatar Sujeev Dias
Browse files

msm: mhi_rmnet: remove headroom reservation 



MHI_RMNET layer not required to reserve for IP headroom
data since rmnet_data layer will create a new skb if
headroom reservation is needed.

CRs-Fixed: 1085031
Change-Id: Ic04e73510140e6c00ee18107a8edc9ead0b53863
Signed-off-by: default avatarSujeev Dias <sdias@codeaurora.org>
parent 55f7c647

drivers/net/ethernet/msm/msm_rmnet_mhi.c

+4 −6
Original line number Diff line number Diff line
@@ -34,7 +34,6 @@ 
#define MHI_DEFAULT_MTU        8000

#define MHI_MAX_MRU            0xFFFF

#define MHI_NAPI_WEIGHT_VALUE  12

#define MHI_RX_HEADROOM        64

#define WATCHDOG_TIMEOUT       (30 * HZ)

#define RMNET_IPC_LOG_PAGES (100)
@@ -120,7 +119,7 @@ static int rmnet_mhi_process_fragment(struct rmnet_mhi_private *rmnet_mhi_ptr, 
	if (rmnet_mhi_ptr->frag_skb) {

		/* Merge the new skb into the old fragment */

		temp_skb = skb_copy_expand(rmnet_mhi_ptr->frag_skb,

					MHI_RX_HEADROOM,

					   0,

					   skb->len,

					   GFP_ATOMIC);

		if (!temp_skb) {
@@ -209,9 +208,8 @@ static int rmnet_alloc_rx(struct rmnet_mhi_private *rmnet_mhi_ptr, 
			return -ENOMEM;

		}

		skb_priv = (struct mhi_skb_priv *)(skb->cb);

		skb_priv->dma_size = cur_mru - MHI_RX_HEADROOM;

		skb_priv->dma_size = cur_mru;

		skb_priv->dma_addr = 0;

		skb_reserve(skb, MHI_RX_HEADROOM);



		/* These steps must be in atomic context */

		spin_lock_irqsave(&rmnet_mhi_ptr->alloc_lock, flags);