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Re: [PATCH wireless-next v9 1/3] wifi: cfg80211: Add Support to Set RTS Threshold for each Radio

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On Tue, 2025-04-29 at 09:30 +0530, Roopni Devanathan wrote:
> 
>  #define NL80211_WIPHY_NAME_MAXLEN		64
> +#define NL80211_WIPHY_RADIO_ID_DEFAULT		-1

I pointed this out before, that doesn't belong to the API.

https://lore.kernel.org/linux-wireless/bef48349364854ba2ec42262e91b747028310a1c.camel@xxxxxxxxxxxxxxxx/

Please address comments or tell me why you disagree.

> +	if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
> +		rts_threshold = nla_get_u32(
> +				info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
> +		changed |= WIPHY_PARAM_RTS_THRESHOLD;
> +	}
> +
> +	if (changed) {
> +		old_rts_threshold = rdev->wiphy.radio_cfg[radio_id].rts_threshold;
> +
> +		rdev->wiphy.radio_cfg[radio_id].rts_threshold = rts_threshold;
> +
> +		result = rdev_set_wiphy_params(rdev, radio_id, changed);
> +		if (result)
> +			rdev->wiphy.radio_cfg[radio_id].rts_threshold = old_rts_threshold;
> +	}
> +
> +	return result;

nit: you could invert the "changed" test and save some indentation,
those lines are pretty long. Then you can also not initialize "result=0"
and "return 0" for the !changed case, which is more readable.

> +		old_radio_rts_threshold = kcalloc(rdev->wiphy.n_radio,
> +						  sizeof(u32),
> +						  GFP_KERNEL);
> +		if (!old_radio_rts_threshold) {
> +			kfree(old_radio_rts_threshold);
> +			return -ENOMEM;

Hmm?

Also doesn't that leak?

johannes





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