[rt2x00-users] [PATCH 4/7] rt2x00: Set SKBDESC_L2_PADDED in RX path

Benoit PAPILLAULT benoit.papillault at free.fr
Mon Aug 17 20:46:22 UTC 2009


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Ivo van Doorn a écrit :
> When the RX descriptor indicates the frame was L2 padded,
> the SKBDESC_L2_PADDED flag should be set to make sure the
> L2 padding is removed before it is send to mac80211.
>
> Signed-off-by: Ivo van Doorn <IvDoorn at gmail.com>
> ---
>  drivers/net/wireless/rt2x00/rt2800usb.c |    4 +++-
>  1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c
b/drivers/net/wireless/rt2x00/rt2800usb.c
> index c82474e..6de2eda 100644
> --- a/drivers/net/wireless/rt2x00/rt2800usb.c
> +++ b/drivers/net/wireless/rt2x00/rt2800usb.c
> @@ -2163,8 +2163,10 @@ static void rt2800usb_fill_rxdone(struct
queue_entry *entry,
>      if (rt2x00_get_field32(rxd0, RXD_W0_MY_BSS))
>          rxdesc->dev_flags |= RXDONE_MY_BSS;
> 
> -    if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD))
> +    if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD)) {
>          rxdesc->dev_flags |= RXDONE_L2PAD;
> +        skbdesc->flags |= SKBDESC_L2_PADDED;
> +    }
> 
>      if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
>          rxdesc->flags |= RX_FLAG_SHORT_GI;
I have tested this patch as well and it looks correct. However, during
my test, the hardware does not set L2PAD flag, even if padding is
present (for some frames). I did the same test with the rt2870sta
driver from Ralink and the L2PAD was indeed set.

Ivo : what happens during your tests?

Regards,
Benoit

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