From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: [PATCH 5.4.33 0/2] Fix for long operation cmds busy detection Date: Wed, 13 May 2020 11:37:51 +0200 Message-ID: <20200513093751.GA831267@kroah.com> References: <1587758766-3274-1-git-send-email-skomatineni@nvidia.com> <20200425014556.GD13035@sasha-vm> <81be9ca0-5c61-6e94-8398-85354764b429@nvidia.com> <20200425070408.GB2042217@kroah.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Return-path: Content-Disposition: inline In-Reply-To: <20200425070408.GB2042217@kroah.com> Sender: stable-owner@vger.kernel.org To: Sowjanya Komatineni Cc: Sasha Levin , adrian.hunter@intel.com, ulf.hansson@linaro.org, baolin.wang@linaro.org, kstewart@linuxfoundation.org, tglx@linutronix.de, bradleybolen@gmail.com, thierry.reding@gmail.com, jonathanh@nvidia.com, anrao@nvidia.com, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, stable@vger.kernel.org List-Id: linux-tegra@vger.kernel.org On Sat, Apr 25, 2020 at 09:04:08AM +0200, Greg KH wrote: > On Fri, Apr 24, 2020 at 07:42:16PM -0700, Sowjanya Komatineni wrote: > > > > On 4/24/20 6:45 PM, Sasha Levin wrote: > > > External email: Use caution opening links or attachments > > > > > > > > > On Fri, Apr 24, 2020 at 01:06:04PM -0700, Sowjanya Komatineni wrote: > > > > This series is to backport the upstream patches that fixes busy > > > > detection > > > > for long operation mmc commands by implementing Tegra specific timeout > > > > callback to switch between finite and infinite HW busy detection wait > > > > modes. > > > > > > > > > > > > Sowjanya Komatineni (2): > > > >  sdhci: tegra: Implement Tegra specific set_timeout callback > > > >  sdhci: tegra: Enable MMC_CAP_WAIT_WHILE_BUSY host capability > > > > > > What regression do these patches fix? > > > > > This isn't a regression as we don't have any known failures as of today with > > the specific mmc devices we are using on our platforms. > > Have you read: > https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html > ? > > > But this patch fixes a long outstanding bug for sdhci-tegra to handle long > > busy wait for mmc command operations that may take longer than host max busy > > timeout. So, this is something that's missing from the beginning and good to > > have. > > So it's a new feature? > Dropped from my queues due to lack of response. greg k-h