From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Andersson Subject: Re: [PATCH] wcn36xx: Close SMD channel on device removal Date: Tue, 9 May 2017 16:03:12 -0700 Message-ID: <20170509230312.GR15143@minitux> References: <20170509043637.28179-1-bjorn.andersson@linaro.org> <87h90u3672.fsf@kamboji.qca.qualcomm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Eugene Krasnikov , Eyal Ilsar , wcn36xx@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org To: Kalle Valo Return-path: Content-Disposition: inline In-Reply-To: <87h90u3672.fsf@kamboji.qca.qualcomm.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Mon 08 May 23:17 PDT 2017, Kalle Valo wrote: > Bjorn Andersson writes: > > > The SMD channel is not the primary WCNSS channel and must explicitly be > > closed as the device is removed, or the channel will already by open on > > a subsequent probe call in e.g. the case of reloading the kernel module. > > > > This issue was introduced because I simplified the underlying SMD > > implementation while the SMD adaptions of the driver sat on the mailing > > list, but missed to update these patches. The patch does however only > > apply back to the transition to rpmsg, hence the limited Fixes. > > > > Fixes: 5052de8deff5 ("soc: qcom: smd: Transition client drivers from smd to rpmsg") > > Reported-by: Eyal Ilsar > > Signed-off-by: Bjorn Andersson > > As this is a regression I'll queue this to 4.12. > Thanks. > But if this is an older bug (didn't quite understand your description > though) should there be a separate patch for stable releases? > AFAICT this never worked, as it seems I did the rework in SMD while we tried to figure out the dependency issues we had with moving to SMD. So v4.9 through v4.11 has SMD support - with this bug. How do I proceed, do you want me to write up a fix for stable@? Do I send that out as an ordinary patch? Regards, Bjorn