APPLIED(B,E,F): [PATCH v2 0/4][SRU][B/E/F/OEM-OSP1-B] Fix Wi-Fi/Bluetooth co-existence for RTL8723BU

[Khaled Elmously]

On 2020-05-21 18:09:10 , You-Sheng Yang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1878296
> 
> [Impact]
> With the rtl8723bu Wi-Fi/Bluetooth combo adapter, if the wifi is turned
> off and then turned on again under the circumstance that a Bluetooth
> device was paired previously, the system can't connect to a wireless
> network until the system is rebooted.
> 
> [Fix]
> Commit e542e66b7c2e("rtl8xxxu: add bluetooth co-existence support for
> single antenna"), which landed v5.5 and as its subject suggests, support
> bluetooth co-existence for RTL8723BU and fixes WiFi disconnection
> problem when Bluetooth is in action.
> 
> Commit a9bb0b515778("rtl8xxxu: Improve TX performance of RTL8723BU on
> rtl8xxxu driver") was added as a prerequisite to aforementioned fix.
> 
> Commit 4fcef8609132("rtl8xxxu: remove set but not used variable
> 'rate_mask'") and commit eac08515d7bd("rtl8xxxu: Remove set but not used
> variable 'vif','dev','len'") are included as minor fixes to previous
> commits.
> 
> [Test Case]
> 1. Turn on Wi-Fi and get associated with some AP.
> 2. Pair some bluetooth device.
> 3. Turn off Wi-Fi and turn again.
> 4. Expect Wi-Fi reconnects to the previous associated AP.
> 
> [Regression Potential]
> Low. Both commits only affect RTL8723BU.
> 
> Chris Chiu (2):
>   rtl8xxxu: Improve TX performance of RTL8723BU on rtl8xxxu driver
>   rtl8xxxu: add bluetooth co-existence support for single antenna
> 
> YueHaibing (1):
>   rtl8xxxu: remove set but not used variable 'rate_mask'
> 
> zhengbin (1):
>   rtl8xxxu: Remove set but not used variable 'vif','dev','len'
> 
>  .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.h  |  92 +++-
>  .../realtek/rtl8xxxu/rtl8xxxu_8723b.c         |   2 -
>  .../wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 488 +++++++++++++++++-
>  3 files changed, 568 insertions(+), 14 deletions(-)
> 
> -- 
> 2.25.1
> 
> 
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