These bits are used in op_tx to determine if a packet should be dropped.
As such we should use the spin lock to sync the state.
Signed-off-by: Arik Nemtsov <arik@xxxxxxxxxx>
---
drivers/net/wireless/wl12xx/cmd.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/cmd.c b/drivers/net/wireless/wl12xx/cmd.c
index b776d9d..ef994da 100644
--- a/drivers/net/wireless/wl12xx/cmd.c
+++ b/drivers/net/wireless/wl12xx/cmd.c
@@ -459,23 +459,32 @@ out:
int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
{
+ unsigned long flags;
u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS);
if (link >= WL12XX_MAX_LINKS)
return -EBUSY;
+ /* these bits are used by op_tx */
+ spin_lock_irqsave(&wl->wl_lock, flags);
__set_bit(link, wl->links_map);
__set_bit(link, wlvif->links_map);
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
*hlid = link;
return 0;
}
void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
{
+ unsigned long flags;
+
if (*hlid == WL12XX_INVALID_LINK_ID)
return;
+ /* these bits are used by op_tx */
+ spin_lock_irqsave(&wl->wl_lock, flags);
__clear_bit(*hlid, wl->links_map);
__clear_bit(*hlid, wlvif->links_map);
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
*hlid = WL12XX_INVALID_LINK_ID;
}
--
1.7.5.4
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
