Re: [PATCH] mac80211: allow drivers to indicate failed FCS/PLCP checksum

[Ivo van Doorn <ivdoorn@gmail.com>]

Hi,

> @@ -241,6 +241,8 @@ struct ieee80211_rx_status {
>  #define RX_FLAG_MMIC_ERROR	(1<<0)
>  #define RX_FLAG_DECRYPTED	(1<<1)
>  #define RX_FLAG_RADIOTAP	(1<<2)
> +#define RX_FLAG_FAILED_FCS_CRC	(1<<3)
> +#define RX_FLAG_FAILED_PLCP_CRC	(1<<4)
>  	int flag;
>  };

This looks good, but there is a slight problem for rt2x00.
The package descriptor knows 3 kind of errors for a received frame:

	CRC error
	Physical error
	Cipher error

For the CRC error I don't know if that is the FCS or PLCP error..
And should the other 2 be also passed to mac80211 or should those
be stopped?
For the cipher error it could perhaps be possible to send it to mac80211
without the RX_FLAG_DECRYPTED bit set. (At the moment rt2x00 doesn't
see this error yet, because hardware encryption is not yet implemented).

Ivo