On 11.03.24 17:09, Imre Deak wrote: > On Sat, Feb 10, 2024 at 09:24:59PM +0000, Chris Bainbridge wrote: > Sorry for the delay. Happens, thx for looking onto this! >> The following trace occurs when using nouveau and unplugging a DP MST >> adaptor: > [...] >> + if (bpp_x16 == 0) >> + return 0; > > Could you please move the check to the beginnig of the function and add > a debug message in case bpp_x16 is 0? > > It looks odd that a driver calls this function with a 0 bpp_x16, and > ideally it should be fixed in the driver. However as it's a regression > and we don't have a better idea now: > > Acked-by: Imre Deak <imre.deak@xxxxxxxxx> Chris: as this went into 6.8, please consider adding a stable-tag to ensure Greg picks this up. Ciao, Thorsten
