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SubjectRe: [PATCH 11/16] wl1251: enable tx path in monitor mode if necessary for packet injection
Hi!
>
> If necessary enable the tx path in monitor mode for packet injection using
> the JOIN command with BSS_TYPE_STA_BSS and zero BSSID.
>
> Signed-off-by: David Gnedt <david.gnedt@davizone.at>
> ---
> drivers/net/wireless/ti/wl1251/main.c | 5 +++++
> drivers/net/wireless/ti/wl1251/tx.c | 17 +++++++++++++++++
> drivers/net/wireless/ti/wl1251/wl1251.h | 1 +
> 3 files changed, 23 insertions(+)
>
> diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
> diff --git a/drivers/net/wireless/ti/wl1251/tx.c b/drivers/net/wireless/ti/wl1251/tx.c
> index 3cc82fd..1de4ccb 100644
> --- a/drivers/net/wireless/ti/wl1251/tx.c
> +++ b/drivers/net/wireless/ti/wl1251/tx.c
> @@ -28,6 +28,7 @@
> #include "tx.h"
> #include "ps.h"
> #include "io.h"
> +#include "event.h"
>
> static bool wl1251_tx_double_buffer_busy(struct wl1251 *wl, u32 data_out_count)
> {
> @@ -298,6 +299,22 @@ static int wl1251_tx_frame(struct wl1251 *wl, struct sk_buff *skb)
> }
> }
>
> + /* Enable tx path in monitor mode for packet injection */
> + if ((wl->vif == NULL) && !wl->joined) {
> + ret = wl1251_cmd_join(wl, BSS_TYPE_STA_BSS, wl->channel,
> + wl->beacon_int, wl->dtim_period);
> + if (ret < 0)
> + wl1251_warning("join failed");
> + else {
> + ret = wl1251_event_wait(wl, JOIN_EVENT_COMPLETE_ID,
> + 100);
> + if (ret < 0)
> + wl1251_warning("join timeout");
> + else
> + wl->joined = true;
> + }
> + }

Create function enable_tx_for_packet_injection() and then just return
so that you don't have to nest ifs?

Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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