On 28-12-16 16:59, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@xxxxxxxxxx>
>
> They allow specifying hardware limitations of supported channels. This
> may be useful for specifying single band devices or devices that support
> only some part of the whole band.
> E.g. some tri-band routers have separated radios for lower and higher
> part of 5 GHz band.
>
> Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
> ---
> net/wireless/reg.c | 34 ++++++++++++++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
>
> diff --git a/net/wireless/reg.c b/net/wireless/reg.c
> index 5dbac37..35ba5c7 100644
> --- a/net/wireless/reg.c
> +++ b/net/wireless/reg.c
> @@ -1123,6 +1123,26 @@ const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
> }
> EXPORT_SYMBOL(reg_initiator_name);
>
> +static bool reg_center_freq_of_valid(struct wiphy *wiphy,
> + struct ieee80211_channel *chan)
> +{
> + struct device_node *np = wiphy_dev(wiphy)->of_node;
> + u32 val;
> +
> + if (!np)
> + return true;
> +
> + if (!of_property_read_u32(np, "ieee80211-min-center-freq", &val) &&
> + chan->center_freq < KHZ_TO_MHZ(val))
> + return false;
> +
> + if (!of_property_read_u32(np, "ieee80211-max-center-freq", &val) &&
> + chan->center_freq > KHZ_TO_MHZ(val))
> + return false;
I suspect these functions rely on CONFIG_OF. So might not build for
!CONFIG_OF.
Regards,
Arend
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