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brcm80211: fmac: add frame header extension support

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A header extension is introduced in the received frame to provide
extra space for dongle information. This won't affect current
supported chipset since the data_offset is 0. But it's necessary for
adding support for future chipset.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Franky Lin 2012-04-11 11:52:46 +02:00 committed by John W. Linville
parent 474a64c80e
commit 8f1ab44d8d
1 changed files with 1 additions and 0 deletions
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drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
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@ -421,6 +421,7 @@ int brcmf_proto_hdrpull(struct device *dev, int *ifidx,
pktbuf->priority = h->priority & BDC_PRIORITY_MASK;
skb_pull(pktbuf, BDC_HEADER_LEN);
skb_pull(pktbuf, h->data_offset << 2);
return 0;
}