31 lines
1.3 KiB
Diff
31 lines
1.3 KiB
Diff
From: Wright Feng <wright.feng@broadcom.com>
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Date: Fri, 3 Jun 2016 23:31:09 +0200
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Subject: [PATCH] brcmfmac: use ndev->needed_headroom to reserve additional
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header space
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When using nmap tool with FMAC, the nmap packets were be dropped by kernel
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because the size was too short. The kernel message showed like
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"nmap: packet size is too short (42 <= 50)". It is caused by the packet
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length is shorter than ndev->hard_header_len. According to definition of
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LL_RESERVED_SPACE() and hard_header_len, we should use hard_header_len
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to reserve for L2 header, like ethernet header(ETH_HLEN) in our case and
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use needed_headroom for the additional headroom needed by hardware.
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Reviewed-by: Arend Van Spriel <arend@broadcom.com>
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Signed-off-by: Wright Feng <wright.feng@broadcom.com>
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Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
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@@ -516,7 +516,7 @@ int brcmf_net_attach(struct brcmf_if *if
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/* set appropriate operations */
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ndev->netdev_ops = &brcmf_netdev_ops_pri;
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- ndev->hard_header_len += drvr->hdrlen;
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+ ndev->needed_headroom += drvr->hdrlen;
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ndev->ethtool_ops = &brcmf_ethtool_ops;
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drvr->rxsz = ndev->mtu + ndev->hard_header_len +
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