Remove function rtllib_update_active_chan_map() as "active_channel_map" and "channel_map" have the same content. Content of "channel_map" does not change. Tested with rtl8192e (WLL6130-D99) in Mode n (12.5 MB/s) Transferred this patch over wlan connection of rtl8192e. Used the following code for testing: struct rt_dot11d_info *ph = priv->rtllib->dot11d_info; for (i = 1; i <= 13; i++){ printk("priv->rtllib->active_channel_map) [%d] %d\n", i, priv->rtllib->active_channel_map[i]); printk("priv->rtllib->dot11d_info->chan_map[%d] %d\n", i, ph->channel_map[i]); } Log: [ 1141.288386] priv->rtllib->active_channel_map) [1] 1 [ 1141.288393] priv->rtllib->dot11d_info->chan_map[1] 1 [ 1141.288395] priv->rtllib->active_channel_map) [2] 1 [ 1141.288396] priv->rtllib->dot11d_info->chan_map[2] 1 ... [ 1141.288426] priv->rtllib->active_channel_map) [11] 1 [ 1141.288428] priv->rtllib->dot11d_info->chan_map[11] 1 [ 1141.288429] priv->rtllib->active_channel_map) [12] 2 [ 1141.288431] priv->rtllib->dot11d_info->chan_map[12] 2 [ 1141.288433] priv->rtllib->active_channel_map) [13] 2 [ 1141.288434] priv->rtllib->dot11d_info->chan_map[13] 2 Philipp Hortmann (5): staging: rtl8192e: Remove function rtllib_update_active_chan_map() staging: rtl8192e: Remove variable channel_map staging: rtl8192e: Remove variable dot11d_info staging: rtl8192e: Remove function dot11d_channel_map() staging: rtl8192e: Remove files dot11d.c and dot11d.h drivers/staging/rtl8192e/Makefile | 1 - drivers/staging/rtl8192e/dot11d.c | 29 ------------------- drivers/staging/rtl8192e/dot11d.h | 30 -------------------- drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 1 - drivers/staging/rtl8192e/rtl8192e/rtl_core.h | 2 -- drivers/staging/rtl8192e/rtllib.h | 1 - drivers/staging/rtl8192e/rtllib_rx.c | 1 - drivers/staging/rtl8192e/rtllib_softmac.c | 19 ------------- drivers/staging/rtl8192e/rtllib_softmac_wx.c | 1 - 9 files changed, 85 deletions(-) delete mode 100644 drivers/staging/rtl8192e/dot11d.c delete mode 100644 drivers/staging/rtl8192e/dot11d.h -- 2.43.0