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[PATCH 0/4] HID: fix few non-DMA capable HID transfers

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Hi Jiri,

While playing a little bit with the CP2112 (for hid-rmi I must confess), I
realized that kernel v4.9 now enforces DMA capable buffers when calling
hid_hw_raw_request(). Kernel v4.8 works fine (but gives a stacktrace the first
time), but v4.9 doesn't.

So I gave a check of all the other drivers in the HID tree, and it looks like
only 4 drivers are not properly allocating their buffers.

I'd say this is v4.9 material but I was not able to test magicmouse and lg.
If this doesn't qualifies for 4.9-rc7, I think we should add the stable@ stamp,
given that the chance this will break hid-rmi is huge (cp2112 is not so much an
issue, given it's a devel board).

Cheers,
Benjamin



Benjamin Tissoires (4):
  HID: cp2112: make transfer buffers DMA capable
  HID: lg: make transfer buffers DMA capable
  HID: magicmouse: make transfer buffers DMA capable
  HID: rmi: make transfer buffers DMA capable

 drivers/hid/hid-cp2112.c     | 115 +++++++++++++++++++++++++++++--------------
 drivers/hid/hid-lg.c         |  12 +++--
 drivers/hid/hid-magicmouse.c |  12 ++++-
 drivers/hid/hid-rmi.c        |  10 +++-
 4 files changed, 106 insertions(+), 43 deletions(-)

-- 
2.7.4

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[PATCH 0/4] HID: fix few non-DMA capable HID transfers Benjamin Tissoires <benjamin.tissoires@redhat.com> - 2016-11-21 11:50 +0100
  [PATCH 3/4] HID: magicmouse: make transfer buffers DMA capable Benjamin Tissoires <benjamin.tissoires@redhat.com> - 2016-11-21 11:50 +0100
  [PATCH 1/4] HID: cp2112: make transfer buffers DMA capable Benjamin Tissoires <benjamin.tissoires@redhat.com> - 2016-11-21 11:50 +0100
  [PATCH 2/4] HID: lg: make transfer buffers DMA capable Benjamin Tissoires <benjamin.tissoires@redhat.com> - 2016-11-21 11:50 +0100
    [PATCH] HID: lg: fix noderef.cocci warnings kbuild test robot <lkp@intel.com> - 2016-11-21 13:10 +0100
      Re: [PATCH] HID: lg: fix noderef.cocci warnings Benjamin Tissoires <benjamin.tissoires@redhat.com> - 2016-11-21 15:20 +0100
        Re: [PATCH] HID: lg: fix noderef.cocci warnings Jiri Kosina <jikos@kernel.org> - 2016-11-22 11:50 +0100
          Re: [PATCH] HID: lg: fix noderef.cocci warnings Fengguang Wu <lkp@intel.com> - 2016-11-23 07:00 +0100
            Re: [PATCH] HID: lg: fix noderef.cocci warnings Julia Lawall <julia.lawall@lip6.fr> - 2016-11-23 08:10 +0100
    Re: [PATCH 2/4] HID: lg: make transfer buffers DMA capable kbuild test robot <lkp@intel.com> - 2016-11-21 13:10 +0100
  [PATCH 4/4] HID: rmi: make transfer buffers DMA capable Benjamin Tissoires <benjamin.tissoires@redhat.com> - 2016-11-21 11:50 +0100
  Re: [PATCH 0/4] HID: fix few non-DMA capable HID transfers Jiri Kosina <jikos@kernel.org> - 2016-11-23 17:50 +0100

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