The ath12k_wmi_scan_req_arg structure defines the channel list in CPU-native order, while wmi_start_scan_cmd expects the values in little-endian format. The simple memcpy causes the hardware scan to fail on big-endian architectures. Set __le32* type for the tmp_ptr and swap channel values to support both architectures correctly. Signed-off-by: Alexander Wilhelm --- drivers/net/wireless/ath/ath12k/wmi.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c index 65a05a9520ff..9e1d3c662852 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.c +++ b/drivers/net/wireless/ath/ath12k/wmi.c @@ -2571,7 +2571,8 @@ int ath12k_wmi_send_scan_start_cmd(struct ath12k *ar, struct wmi_tlv *tlv; void *ptr; int i, ret, len; - u32 *tmp_ptr, extraie_len_with_pad = 0; + __le32 *tmp_ptr; + u32 extraie_len_with_pad = 0; struct ath12k_wmi_hint_short_ssid_arg *s_ssid = NULL; struct ath12k_wmi_hint_bssid_arg *hint_bssid = NULL; @@ -2656,9 +2657,10 @@ int ath12k_wmi_send_scan_start_cmd(struct ath12k *ar, tlv = ptr; tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_UINT32, len); ptr += TLV_HDR_SIZE; - tmp_ptr = (u32 *)ptr; + tmp_ptr = (__le32 *)ptr; - memcpy(tmp_ptr, arg->chan_list, arg->num_chan * 4); + for (i = 0; i < arg->num_chan; i++) + tmp_ptr[i] = cpu_to_le32(arg->chan_list[i]); ptr += len; --- base-commit: 702847e8cfd51856836a282db2073defd7cfd80c change-id: 20260317-fix-channel-list-copy-cef5cad24fb6 Best regards, -- Alexander Wilhelm