On Thu, 2015-10-08 at 20:14 +0200, Ondrej Zary wrote:
> SIOCSIWAP (airo_set_wap) affects scan: only the AP specified by
> SIOCSIWAP is present in scan results.
>
> This makes NetworkManager work for the first time but then unable to
> find any other APs.
>
> Clear APList before starting scan and set it back after scan completes
> to work-around the problem.
Sounds plausible. But does this cause any problems while the device is
associated and a scan is requested? If not then it seems fine.
Dan
> Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
> ---
> drivers/net/wireless/airo.c | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
> index 4ef2f98..654a172 100644
> --- a/drivers/net/wireless/airo.c
> +++ b/drivers/net/wireless/airo.c
> @@ -3037,6 +3037,11 @@ static void airo_process_scan_results (struct
> airo_info *ai) {
> }
>
> out:
> + /* write APList back (we cleared it in airo_set_scan) */
> + disable_MAC(ai, 0);
> + writeAPListRid(ai, &ai->APList, 0);
> + enable_MAC(ai, 0);
> +
> ai->scan_timeout = 0;
> clear_bit(JOB_SCAN_RESULTS, &ai->jobs);
> up(&ai->sem);
> @@ -7216,6 +7221,7 @@ static int airo_set_scan(struct net_device *dev,
> Cmd cmd;
> Resp rsp;
> int wake = 0;
> + APListRid APList_rid_empty;
>
> /* Note : you may have realised that, as this is a SET operation,
> * this is privileged and therefore a normal user can't
> @@ -7233,6 +7239,13 @@ static int airo_set_scan(struct net_device *dev,
> if (ai->scan_timeout > 0)
> goto out;
>
> + /* Clear APList as it affects scan results */
> + memset(&APList_rid_empty, 0, sizeof(APList_rid_empty));
> + APList_rid_empty.len = cpu_to_le16(sizeof(APList_rid_empty));
> + disable_MAC(ai, 0);
> + writeAPListRid(ai, &APList_rid_empty, 0);
> + enable_MAC(ai, 0);
> +
> /* Initiate a scan command */
> ai->scan_timeout = RUN_AT(3*HZ);
> memset(&cmd, 0, sizeof(cmd));
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