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Re: [PATCH] wifi: ath11k: mac: fix struct ieee80211_sband_iftype_data handling

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On 9/21/2023 12:54 AM, Kalle Valo wrote:
From: Kalle Valo <quic_kvalo@xxxxxxxxxxx>

Commit e8c1841278a7 ("wifi: cfg80211: annotate iftype_data pointer with
sparse") added sparse checks for struct ieee80211_sband_iftype_data handling
which immediately found an issue in ath11k:

drivers/net/wireless/ath/ath11k/mac.c:7952:22: warning: incorrect type in argument 1 (different address spaces)
drivers/net/wireless/ath/ath11k/mac.c:7952:22:    expected struct ieee80211_sta_he_cap const *he_cap
drivers/net/wireless/ath/ath11k/mac.c:7952:22:    got struct ieee80211_sta_he_cap const [noderef] __iftype_data *

The problem here is that we are accessing sband->iftype_data directly even
though we should use for_each_sband_iftype_data(). Now we iterate over each
item in the array and use the correct vif type which this vif is using.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Reported-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>

Reviewed-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx>




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