Re: [PATCH 4.14 1/2] PCI: aardvark: Clear all MSIs at setup

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On Tue, May 10, 2022 at 02:01:18PM +0200, Pali Rohár wrote:
> On Tuesday 10 May 2022 13:58:06 Greg Kroah-Hartman wrote:
> > On Tue, May 03, 2022 at 10:54:33PM +0200, Marek Behún wrote:
> > > From: Pali Rohár <pali@xxxxxxxxxx>
> > > 
> > > [ Upstream commit 7d8dc1f7cd007a7ce94c5b4c20d63a8b8d6d7751 ]
> > > 
> > > We already clear all the other interrupts (ISR0, ISR1, HOST_CTRL_INT).
> > > 
> > > Define a new macro PCIE_MSI_ALL_MASK and do the same clearing for MSIs,
> > > to ensure that we don't start receiving spurious interrupts.
> > > 
> > > Use this new mask in advk_pcie_handle_msi();
> > > 
> > > Link: https://lore.kernel.org/r/20211130172913.9727-5-kabel@xxxxxxxxxx
> > > Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>
> > > Signed-off-by: Marek Behún <kabel@xxxxxxxxxx>
> > > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
> > > Signed-off-by: Marek Behún <kabel@xxxxxxxxxx>
> > > ---
> > >  drivers/pci/host/pci-aardvark.c | 6 ++++--
> > >  1 file changed, 4 insertions(+), 2 deletions(-)
> > 
> > What about 4.19 and 5.4 for this and patch 2/2?  I can't apply this to
> > 4.14 without the newer kernels also having it, right?
> 
> Do you mean these patches which Marek prepared? Or something else?
> https://lore.kernel.org/stable/20220504140719.11066-1-kabel@xxxxxxxxxx/
> https://lore.kernel.org/stable/20220504140826.11094-1-kabel@xxxxxxxxxx/

Odd, I missed those somehow.  Thanks for pointing them out, I'll go
apply them now.

greg k-h



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