Subject: Re: linux-next: build failure after merge of the mac80211-next tree

From: Kalle Valo <[email-masked]>
Date: Tue, 21 Dec 2021 14:31:31 +0200

Stephen Rothwell <[email-masked]> writes:

> Hi all,
>
> After merging the mac80211-next tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>
> drivers/net/wireless/ath/ath10k/wmi.c: In function 'ath10k_wmi_event_mgmt_rx':
> drivers/net/wireless/ath/ath10k/wmi.c:2626:12: error: too few
> arguments to function 'cfg80211_get_ies_channel_number'
>  2626 |   ies_ch = cfg80211_get_ies_channel_number(mgmt->u.beacon.variable,
>       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from include/net/mac80211.h:21,
>                  from drivers/net/wireless/ath/ath10k/htt.h:16,
>                  from drivers/net/wireless/ath/ath10k/core.h:18,
>                  from drivers/net/wireless/ath/ath10k/wmi.c:11:
> include/net/cfg80211.h:6421:5: note: declared here
>  6421 | int cfg80211_get_ies_channel_number(const u8 *ie, size_t ielen,
>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Caused by commit
>
>   7f599aeccbd2 ("cfg80211: Use the HE operation IE to determine a 6GHz BSS channel")
>
> interacting with commit
>
>   3bf2537ec2e3 ("ath10k: drop beacon and probe response which leak from other channel")
>
> from the net-next tree.
>
> I have applied the following merge fix patch for today (which, on
> reflection, may not be correct, but builds).
>
> From: Stephen Rothwell <[email-masked]>
> Date: Tue, 21 Dec 2021 11:40:49 +1100
> Subject: [PATCH] fixup for "cfg80211: Use the HE operation IE to determine a 6GHz BSS channel"
>
> Signed-off-by: Stephen Rothwell <[email-masked]>
> ---
>  drivers/net/wireless/ath/ath10k/wmi.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
> index 4733fd7fb169..657bd6a32a36 100644
> --- a/drivers/net/wireless/ath/ath10k/wmi.c
> +++ b/drivers/net/wireless/ath/ath10k/wmi.c
> @@ -2613,6 +2613,7 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
>  	if (ieee80211_is_beacon(hdr->frame_control) ||
>  	    ieee80211_is_probe_resp(hdr->frame_control)) {
>  		struct ieee80211_mgmt *mgmt = (void *)skb->data;
> +		enum cfg80211_bss_frame_type ftype;
>  		u8 *ies;
>  		int ies_ch;
>  
> @@ -2623,9 +2624,14 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
>  
>  		ies = mgmt->u.beacon.variable;
>  
> +		if (ieee80211_is_beacon(mgmt->frame_control))
> +			ftype = CFG80211_BSS_FTYPE_BEACON;
> +		else /* if (ieee80211_is_probe_resp(mgmt->frame_control)) */
> +			ftype = CFG80211_BSS_FTYPE_PRESP;
> +
>  		ies_ch = cfg80211_get_ies_channel_number(mgmt->u.beacon.variable,
>  							 skb_tail_pointer(skb) - ies,
> -							 sband->band);
> +							 sband->band, ftype);

I would remove the commented out code '/* if
(ieee80211_is_probe_resp(mgmt->frame_control)) */', otherwise looks good
to me.

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