[SRU] [B] [PATCH 0/1] Make rtl8723be work again

Stefan Bader stefan.bader at canonical.com
Wed Mar 27 16:36:50 UTC 2019


On 11.03.19 17:10, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1788997
> 
> [Impact]
> Realtek 8723be's ant_sel parameter stops working since 4.15.0-33.36.
> 
> [Fix]
> The commit that causes the regression works in mainline, so there are
> some functional dependencies are not in 4.15.
> 
> Finding those dependencies can be hard since I don't have the hardware
> to test with, also pulling new commits may cause new regression. So the
> safest way to deal with this bug is to simply revert the regression
> commit.

Though that sounds like there is some danger that this kind of problem might
happen again when following the close-by upstream stable which Kamal uses. So
either we may want to figure out what is missing or need some red flag on the
realtek driver somehow...

> 
> [Test]
> User confirmed reverting the commit can fix the issue.
> 
> [Regression Potential]
> Low. Realtek 8723be works without this commit.
> 
> Kai-Heng Feng (1):
>   UBUNTU: SAUCE: Revert "rtlwifi: cleanup 8723be ant_sel definition"
> 
>  .../realtek/rtlwifi/btcoexist/halbtcoutsrc.c      | 15 +++++++++++++++
>  .../net/wireless/realtek/rtlwifi/rtl8723be/hw.c   | 11 ++++-------
>  drivers/net/wireless/realtek/rtlwifi/wifi.h       |  5 -----
>  3 files changed, 19 insertions(+), 12 deletions(-)
> 


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