Re: [PATCH stable 4.9 00/21] Unbreak 32-bit DVB applications on 64-bit kernels

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On 6/5/2020 9:24 AM, Florian Fainelli wrote:
> Hi all,
> 
> This long patch series was motivated by backporting Jaedon's changes
> which add a proper ioctl compatibility layer for 32-bit applications
> running on 64-bit kernels. We have a number of Android TV-based products
> currently running on the 4.9 kernel and this was broken for them.
> 
> Thanks to Robert McConnell for identifying and providing the patches in
> their initial format.
> 
> In order for Jaedon's patches to apply cleanly a number of changes were
> applied to support those changes. If you deem the patch series too big
> please let me know.

Mauro, can you review this? I would prefer not to maintain those patches
in our downstream 4.9 kernel as there are quite a few of them, and this
is likely beneficial to other people.

Thank you!

> 
> Thanks
> 
> Colin Ian King (2):
>   media: dvb_frontend: ensure that inital front end status initialized
>   media: dvb_frontend: initialize variable s with FE_NONE instead of 0
> 
> Jaedon Shin (3):
>   media: dvb_frontend: Add unlocked_ioctl in dvb_frontend.c
>   media: dvb_frontend: Add compat_ioctl callback
>   media: dvb_frontend: Add commands implementation for compat ioct
> 
> Katsuhiro Suzuki (1):
>   media: dvb_frontend: fix wrong cast in compat_ioctl
> 
> Mauro Carvalho Chehab (14):
>   media: dvb/frontend.h: move out a private internal structure
>   media: dvb/frontend.h: document the uAPI file
>   media: dvb_frontend: get rid of get_property() callback
>   media: stv0288: get rid of set_property boilerplate
>   media: stv6110: get rid of a srate dead code
>   media: friio-fe: get rid of set_property()
>   media: dvb_frontend: get rid of set_property() callback
>   media: dvb_frontend: cleanup dvb_frontend_ioctl_properties()
>   media: dvb_frontend: cleanup ioctl handling logic
>   media: dvb_frontend: get rid of property cache's state
>   media: dvb_frontend: better document the -EPERM condition
>   media: dvb_frontend: fix return values for FE_SET_PROPERTY
>   media: dvb_frontend: be sure to init dvb_frontend_handle_ioctl()
>     return code
>   media: dvb_frontend: fix return error code
> 
> Satendra Singh Thakur (1):
>   media: dvb_frontend: dtv_property_process_set() cleanups
> 
>  .../media/uapi/dvb/fe-get-property.rst        |   7 +-
>  drivers/media/dvb-core/dvb_frontend.c         | 571 +++++++++++------
>  drivers/media/dvb-core/dvb_frontend.h         |  13 -
>  drivers/media/dvb-frontends/lg2160.c          |  14 -
>  drivers/media/dvb-frontends/stv0288.c         |   7 -
>  drivers/media/dvb-frontends/stv6110.c         |   9 -
>  drivers/media/usb/dvb-usb/friio-fe.c          |  24 -
>  fs/compat_ioctl.c                             |  17 -
>  include/uapi/linux/dvb/frontend.h             | 592 +++++++++++++++---
>  9 files changed, 881 insertions(+), 373 deletions(-)
> 

-- 
Florian



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