linux-kernel - Re: [ath9k-devel] [PATCH] fix endianity on ath9k

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Message-ID: <4CF3929E.9020702@openwrt.org>
Date:	Mon, 29 Nov 2010 12:46:38 +0100
From:	Felix Fietkau <nbd@...nwrt.org>
To:	Pavel Machek <pma@...go.com>
CC:	Sujith <Sujith.Manoharan@...eros.com>,
	"ath9k-devel@...ema.h4ckr.net" <ath9k-devel@...ema.h4ckr.net>,
	"cko@...go.com" <cko@...go.com>, "anl@...go.com" <anl@...go.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	kernel list <linux-kernel@...r.kernel.org>,
	"mfa@...go.com" <mfa@...go.com>,
	"chunkeey@...glemail.com" <chunkeey@...glemail.com>,
	"rudolf.marek@...go.com" <rudolf.marek@...go.com>,
	Larry Finger <Larry.Finger@...inger.net>
Subject: Re: [ath9k-devel] [PATCH] fix endianity on ath9k_htc

On 2010-11-29 10:58 AM, Pavel Machek wrote:
> 
> It seems struct eep_header lacks proper #ifdef BIG_ENDIAN_BITFIELD
> markup. eep_4k_header has proper markup, but two fields were swapped.
> 
> Signed-off-by: Pavel Machek <pma@...go.com>
> 
> diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h
> index 3c99830..022589d 100644
> --- a/drivers/net/wireless/ath/ath9k/eeprom.h
> +++ b/drivers/net/wireless/ath/ath9k/eeprom.h
> @@ -378,10 +374,14 @@ struct modal_eep_header {
>  	u8 xatten2Margin[AR5416_MAX_CHAINS];
>  	u8 ob_ch1;
>  	u8 db_ch1;
> -	u8 useAnt1:1,
> -	    force_xpaon:1,
> -	    local_bias:1,
> +#ifndef __BIG_ENDIAN_BITFIELD
> +	u8 useAnt1:1, force_xpaon:1, local_bias:1,
>  	    femBandSelectUsed:1, xlnabufin:1, xlnaisel:2, xlnabufmode:1;
> +#else
> +	u8 xlnabufmode:1, xlnaisel:2, xlnabufin:1, 
> +	    femBandSelectUsed:1, local_bias:1, force_xpaon:1, useAnt1:1;
> +#endif
> +
>  	u8 miscBits;
>  	u16 xpaBiasLvlFreq[3];
>  	u8 futureModal[6];
I already sent a different fix for this part. See
'[PATCH] ath9k_hw: fix more bitfield related endian issues'

> @@ -443,7 +444,7 @@ struct modal_eep_4k_header {
>  	u8 antdiv_ctl1:4, ob_4:4;
>  	u8 db1_3:4, db1_2:4;
>  	u8 antdiv_ctl2:4, db1_4:4;
> -	u8 db2_2:4, db2_3:4;
> +	u8 db2_3:4, db2_2:4;
>  	u8 reserved:4, db2_4:4;
>  #else
>  	u8 ob_2:4, ob_3:4;
Looks good.

- Felix
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