Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> writes: > On Thu, May 20, 2021 at 12:02:40PM +0200, Greg KH wrote: >> On Thu, May 20, 2021 at 12:47:53PM +0300, Kalle Valo wrote: >> > Hi, >> > >> > I got several reports that this mhi commit broke ath11k in v5.12.3: >> > >> > commit 29b9829718c5e9bd68fc1c652f5e0ba9b9a64fed >> > Author: Bhaumik Bhatt <bbhatt@xxxxxxxxxxxxxx> >> > Date: Wed Feb 24 15:23:04 2021 -0800 >> > >> > bus: mhi: core: Process execution environment changes serially >> > >> > [ Upstream commit ef2126c4e2ea2b92f543fae00a2a0332e4573c48 ] >> > >> > Here are the reports: >> > >> > https://bugzilla.kernel.org/show_bug.cgi?id=213055 >> > >> > https://bugzilla.kernel.org/show_bug.cgi?id=212187 >> > >> > https://bugs.archlinux.org/task/70849?project=1&string=linux >> > >> > Interestingly v5.13-rc1 seems to work fine, at least for me, though I >> > have not tested v5.12.3 myself. Can someone revert this commit in the >> > stable release so that people get their wifi working again, please? >> >> How does the mhi bus code relate to a ath11k driver? What bus is that >> on? >> > > MHI is the transport used by the ath11k driver to work with the WLAN devices > over PCIe. > > Regarding the bug, I'd suggest to wait for Bhaumik (the author of 29b9829718c5) > to comment on the possible commit which needs backporting from mainline. Ok, but if a quick fix is not available I think we should just revert this in the stable releases. I also got a report that v5.11.21 is broken: https://bugzilla.kernel.org/show_bug.cgi?id=213055#c11 -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
