[Xiaomi Mi 6 ROMs, Kernels, Recoveries, & Other Dev] alienmind:
[MENTION=5040396]Miccia[/MENTION]

Can you confirm if wifi tethering works for you?

Not being able to connect, this is a common issue on most device trees for what I've seen, taking a look to logcat shows frequent disconnections and SELinux errors:

12-19 16:59:30.557 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:30.557 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:30.557 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:30.557 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:32.558 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:32.560 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:34.561 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:34.562 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:38.562 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:38.563 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:46.405 12956 12956 I chatty : uid=1010(wifi) /system/bin/hostapd expire 10 lines
12-19 16:59:46.565 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:50.566 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 17:00:02.196 13182 13182 I chatty : uid=1010(wifi) /system/bin/hostapd expire 13 lines
[COLOR="Red"]12-19 17:00:02.410 13184 13184 I hostapd_cli: type=1400 audit(0.0:73): avc: denied { read write } for path="socket:[205816]" dev="sockfs" ino=205816 scontext=u:r:hostapd:s0 tcontext=u:r:cnd:s0 tclass=unix_dgram_socket permissive=1[/COLOR]
12-19 17:00:14.756 13182 13182 I chatty : uid=1010(wifi) /system/bin/hostapd expire 9 lines
12-19 17:00:16.388 757 13183 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 00:0a:f5:ca:fb:a8)

I've setenforced permissive but no luck, do you have any idea?

Some other bits on dmesg (could be related perhaps?)

12-19 16:59:30.557 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:30.557 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:30.557 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:30.557 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:32.558 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:32.560 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:34.561 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:34.562 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:38.562 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:38.563 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:46.405 12956 12956 I chatty : uid=1010(wifi) /system/bin/hostapd expire 10 lines
12-19 16:59:46.565 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-DISCONNECTED 84:a6:c8:63:cf:54)
12-19 16:59:50.566 757 12959 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 84:a6:c8:63:cf:54)
12-19 17:00:02.196 13182 13182 I chatty : uid=1010(wifi) /system/bin/hostapd expire 13 lines
12-19 17:00:02.410 13184 13184 I hostapd_cli: type=1400 audit(0.0:73): avc: denied { read write } for path="socket:[205816]" dev="sockfs" ino=205816 scontext=u:r:hostapd:s0 tcontext=u:r:cnd:s0 tclass=unix_dgram_socket permissive=1
12-19 17:00:14.756 13182 13182 I chatty : uid=1010(wifi) /system/bin/hostapd expire 9 lines
12-19 17:00:16.388 757 13183 D SoftapController: Get event from hostapd (<3>AP-STA-CONNECTED 00:0a:f5:ca:fb:a8)