Re: [PATCH][v2] Drivers: hv: Change flag to write log level in panic msg to false

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Forgot to CC Michael.

On Mon, Jul 06, 2020 at 10:55:49AM +0000, Wei Liu wrote:
> On Wed, Jul 01, 2020 at 07:33:25PM +0000, Sasha Levin wrote:
> > Hi
> > 
> > [This is an automated email]
> > 
> > This commit has been processed because it contains a -stable tag.
> > The stable tag indicates that it's relevant for the following trees: all
> > 
> > The bot has tested the following trees: v5.7.6, v5.4.49, v4.19.130, v4.14.186, v4.9.228, v4.4.228.
> > 
> > v5.7.6: Build OK!
> > v5.4.49: Failed to apply! Possible dependencies:
> >     53edce00ceb74 ("Drivers: hv: vmbus: Remove dependencies on guest page size")
> 
> Unrelated, shouldn't be backported.
> 
> > 
> > v4.19.130: Failed to apply! Possible dependencies:
> >     53edce00ceb74 ("Drivers: hv: vmbus: Remove dependencies on guest page size")
> > 
> 
> Unrelated, shouldn't be backported.
> 
> > v4.14.186: Failed to apply! Possible dependencies:
> >     4a5f3cde4d51c ("Drivers: hv: vmbus: Remove x86-isms from arch independent drivers")
> >     53edce00ceb74 ("Drivers: hv: vmbus: Remove dependencies on guest page size")
> >     7ed4325a44ea5 ("Drivers: hv: vmbus: Make panic reporting to be more useful")
> >     81b18bce48af3 ("Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic")
> >     8afc06dd75c06 ("Drivers: hv: vmbus: Fix the issue with freeing up hv_ctl_table_hdr")
> >     ddcaf3ca4c3c8 ("Drivers: hv: vmus: Fix the check for return value from kmsg get dump buffer")
> > 
> > v4.9.228: Failed to apply! Possible dependencies:
> >     4a5f3cde4d51c ("Drivers: hv: vmbus: Remove x86-isms from arch independent drivers")
> >     6ab42a66d2cc1 ("Drivers: hv: vmbus: Move Hypercall invocation code out of common code")
> >     73638cddaad86 ("Drivers: hv: vmbus: Move the check for hypercall page setup")
> >     76d36ab798204 ("hv: switch to cpuhp state machine for synic init/cleanup")
> >     81b18bce48af3 ("Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic")
> >     8730046c1498e ("Drivers: hv vmbus: Move Hypercall page setup out of common code")
> >     d058fa7e98ff0 ("Drivers: hv: vmbus: Move the crash notification function")
> > 
> > v4.4.228: Failed to apply! Possible dependencies:
> >     4a5f3cde4d51c ("Drivers: hv: vmbus: Remove x86-isms from arch independent drivers")
> >     619848bd07434 ("drivers:hv: Export a function that maps Linux CPU num onto Hyper-V proc num")
> >     6ab42a66d2cc1 ("Drivers: hv: vmbus: Move Hypercall invocation code out of common code")
> >     73638cddaad86 ("Drivers: hv: vmbus: Move the check for hypercall page setup")
> >     75ff3a8a9168d ("Drivers: hv: vmbus: avoid wait_for_completion() on crash")
> >     76d36ab798204 ("hv: switch to cpuhp state machine for synic init/cleanup")
> >     81b18bce48af3 ("Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic")
> >     8730046c1498e ("Drivers: hv vmbus: Move Hypercall page setup out of common code")
> >     a108393dbf764 ("drivers:hv: Export the API to invoke a hypercall on Hyper-V")
> >     d058fa7e98ff0 ("Drivers: hv: vmbus: Move the crash notification function")
> 
> Just from reading the subject lines it seems to me a lot of the possible
> dependencies aren't really related to this patch functionally. It could
> be that they are touching the same area of code which create some
> contextual dependencies. Some of the listed dependencies should
> definitively _not_ be backported.
> 
> Michael and Joseph, how far do you want this to be backported? It may be
> easier for us to provide bespoke versions of this patch to the stable
> trees we care about?
> 
> Wei.
> 
> > 
> > NOTE: The patch will not be queued to stable trees until it is upstream.
> > 
> > How should we proceed with this patch?
> > 
> > -- 
> > Thanks
> > Sasha



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