Re: Patch "MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2" has been added to the 4.1-stable tree

[Greg KH <gregkh@linuxfoundation.org>]

On Thu, Aug 06, 2015 at 04:38:15PM -0700, Paul Burton wrote:
> On Thu, Aug 06, 2015 at 04:30:01PM -0700, gregkh@linuxfoundation.org wrote:
> > 
> > This is a note to let you know that I've just added the patch titled
> > 
> >     MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
> > 
> > to the 4.1-stable tree which can be found at:
> >     http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
> > 
> > The filename of the patch is:
> >      mips-kernel-cps-vec-replace-mips32r2-isa-level-with-mips64r2.patch
> > and it can be found in the queue-4.1 subdirectory.
> > 
> > If you, or anyone else, feels it should not be added to the stable tree,
> > please let <stable@vger.kernel.org> know about it.
> 
> Hi Greg,
> 
> This patch breaks the boot of SMP kernels on Imagination's current
> MIPS32 systems. This & the other MIPS64 related patches that were
> submitted as part of the same series do not improve things for any CPUs
> that Linux supports even as of the v4.2 cycle, so I do not believe they
> should have been marked for backport.
> 
> So please either drop this patch (& preferrably the other MIPS64 CPS SMP
> ones too) or also backport the series I've just submitted:
> 
>     http://marc.info/?l=linux-mips&m=143881461431570&w=2
> 
> My preference would be for not backporting any of these:
> 
> > queue-4.1/mips-kernel-cps-vec-replace-mips32r2-isa-level-with-mips64r2.patch
> > queue-4.1/mips-kernel-cps-vec-use-ta0-ta3-pseudo-registers-for-64-bit.patch
> > queue-4.1/revert-mips-kconfig-disable-smp-cps-for-64-bit.patch
> > queue-4.1/mips-kernel-cps-vec-replace-la-macro-with-ptr_la.patch
> > queue-4.1/mips-kernel-smp-cps-fix-64-bit-compatibility-errors-due-to-pointer-casting.patch
> > queue-4.1/mips-kernel-cps-vec-replace-kseg0-with-ckseg0.patch
> > queue-4.1/mips-cps-vec-use-macros-for-various-arithmetics-and-memory-operations.patch

Thanks, I'll go drop all of these from the queue.

greg k-h