[ath9k-devel] ath9k in kernel 3.3.2

[ath9k-devel] ath9k in kernel 3.3.2

[Sam Handel]

A user question if you please. I am using kernel 3.2.13 after backing 
out 3.3.1 for ath9k hangs and degradation. ath9k is key to my 
environment, I am using it with hostapd.

I would like to try 3.3.2, do you folks recommend it? I plan on doing 
this as soon as I send this email anyway, I can let you know how it goes 
if you like. I am using it with the DLink DWA-552 and DWA-556.

Also, if I'm asking in the wrong place let me know, I certainly don't 
seek to interrupt the primary purpose of this list. Thanks to everyone 
for the great work.



On 04/14/12 18:47, ath9k-devel-request at lists.ath9k.org wrote:
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> Today's Topics:
>
>     1. [PATCH 3/3] ath9k: simplify ath9k_hw_get_scaled_power
>        function (Gabor Juhos)
>     2. Re: 3.4-rc ath9k regression (Re: 3.3.1 ath9k	regression)
>        (Felipe Contreras)
>     3. Re: [ 00/78] 3.3.2-stable review (Stefan Richter)
>     4. Re: [ 00/78] 3.3.2-stable review (Felipe Contreras)
>     5. Re: [PATCH 1/3] ath9k: use consistent value for
>        REDUCE_SCALED_POWER_BY_THREE_CHAIN (Daniel Halperin)
>     6. Re: [ 00/78] 3.3.2-stable review (Stefan Richter)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 14 Apr 2012 22:01:59 +0200
> From: Gabor Juhos<juhosg@openwrt.org>
> Subject: [ath9k-devel] [PATCH 3/3] ath9k: simplify
> 	ath9k_hw_get_scaled_power	function
> To: "John W. Linville"<linville@tuxdriver.com>
> Cc: "ath9k-devel at lists.ath9k.org"<ath9k-devel@venema.h4ckr.net>,
> 	linux-wireless at vger.kernel.org
> Message-ID:<1334433719-1144-3-git-send-email-juhosg@openwrt.org>
>
> Signed-off-by: Gabor Juhos<juhosg@openwrt.org>
> ---
>   drivers/net/wireless/ath/ath9k/eeprom.c |   21 ++++++++-------------
>   1 files changed, 8 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c
> index 61bad99..6a64dec 100644
> --- a/drivers/net/wireless/ath/ath9k/eeprom.c
> +++ b/drivers/net/wireless/ath/ath9k/eeprom.c
> @@ -293,9 +293,7 @@ u16 ath9k_hw_get_max_edge_power(u16 freq, struct cal_ctl_edges *pRdEdgesPower,
>   u16 ath9k_hw_get_scaled_power(struct ath_hw *ah, u16 power_limit,
>   			      u8 antenna_reduction)
>   {
> -	u16 scaled_power;
> -
> -	scaled_power = power_limit - antenna_reduction;
> +	u16 reduction = antenna_reduction;
>
>   	/*
>   	 * Reduce scaled Power by number of chains active
> @@ -305,22 +303,19 @@ u16 ath9k_hw_get_scaled_power(struct ath_hw *ah, u16 power_limit,
>   	case 1:
>   		break;
>   	case 2:
> -		if (scaled_power>  REDUCE_SCALED_POWER_BY_TWO_CHAIN)
> -			scaled_power -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
> -		else
> -			scaled_power = 0;
> +		reduction += REDUCE_SCALED_POWER_BY_TWO_CHAIN;
>   		break;
>   	case 3:
> -		if (scaled_power>  REDUCE_SCALED_POWER_BY_THREE_CHAIN)
> -			scaled_power -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
> -		else
> -			scaled_power = 0;
> +		reduction += REDUCE_SCALED_POWER_BY_THREE_CHAIN;
>   		break;
>   	}
>
> -	scaled_power = max((u16)0, scaled_power);
> +	if (power_limit>  reduction)
> +		power_limit -= reduction;
> +	else
> +		power_limit = 0;
>
> -	return scaled_power;
> +	return power_limit;
>   }
>
>   void ath9k_hw_update_regulatory_maxpower(struct ath_hw *ah)