[PATCH v2] wifi: ath12k: fix scan command endianness on big endian

[Baochen Qiang]

On 7/3/2026 3:35 PM, Alexander Wilhelm wrote:
> ath12k_wmi_scan_req_arg stores scan parameters in CPU-native byte order,
> while ath12k_wmi_send_scan_start_cmd() writes them into a WMI command
> buffer whose contents must be in little-endian format. The existing code
> copies the channel list and writes s_ssid and hint_bssid related values to
> the command buffer without endian conversion. As a result, scan requests
> contain invalid parameters on big-endian systems and fail.
> 
> Convert the channel list as well as the s_ssid and hint_bssid related
> values to little-endian before writing them to the WMI command buffer. This
> preserves the existing behaviour on little-endian systems while fixing scan
> requests on big-endian architectures.
> 
> Signed-off-by: Alexander Wilhelm <alexander.wilhelm at westermo.com>

Reviewed-by: Baochen Qiang <baochen.qiang at oss.qualcomm.com>