linux-kernel - Re: [PATCH v2 0/5] vfio: ccw: error handling fixes and improvements

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Date:   Mon, 23 Apr 2018 13:32:45 +0200
From:   Cornelia Huck <cohuck@...hat.com>
To:     Dong Jia Shi <bjsdjshi@...ux.vnet.ibm.com>
Cc:     linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
        kvm@...r.kernel.org, borntraeger@...ibm.com,
        bjsdjshi@...ux.ibm.com, pasic@...ux.ibm.com, pmorel@...ux.ibm.com
Subject: Re: [PATCH v2 0/5] vfio: ccw: error handling fixes and improvements

On Mon, 23 Apr 2018 13:01:08 +0200
Dong Jia Shi <bjsdjshi@...ux.vnet.ibm.com> wrote:

> Dear Reviewers,
> 
> Here is a new version for this patch series.
> 
> We didn't get agreement on patch #5 (#4 in v1) in the former cycle though,
> I made it based on my understanding. We can continue discussing on it.
> 
> Changelog:
> v1->v2:
>  - #1. Reworded commit message and comment, plus some typo fixes.
>  - #2. New patch.
>  - #3. Added the missing suggested-by Pierre.
>        Fixed typos.
>        Added sanity check on pa->pa_iova_pfn and updated comments accordingly.
>  - #4. Removed unused idaw_nr.
>  - #5. Replaced leading white spaces with TABs.
>        Traced the function in anycase.
> 
> Dong Jia Shi (3):
>   vfio: ccw: shorten kernel doc description for pfn_array_pin()
>   vfio: ccw: refactor and improve pfn_array_alloc_pin()
>   vfio: ccw: set ccw->cda to NULL defensively
> 
> Halil Pasic (2):
>   vfio: ccw: fix cleanup if cp_prefetch fails
>   vfio: ccw: add traceponits for interesting error paths
> 
>  drivers/s390/cio/Makefile         |   1 +
>  drivers/s390/cio/vfio_ccw_cp.c    | 134 ++++++++++++++++++++------------------
>  drivers/s390/cio/vfio_ccw_fsm.c   |  16 ++++-
>  drivers/s390/cio/vfio_ccw_trace.h |  77 ++++++++++++++++++++++
>  4 files changed, 164 insertions(+), 64 deletions(-)
>  create mode 100644 drivers/s390/cio/vfio_ccw_trace.h
> 

Out of this series, patch 1 is a fix, while the rest are improvements,
correct? So patch 1 would be material for 4.17 (and maybe stable?), the
rest for 4.18?