Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1528581

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

Show all headers | View raw

On Mon, 21 Nov 2016, Benjamin Tissoires wrote:

> 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).

Thanks for fixing this up. Applied to for-4.9/upstream-fixes.

-- 
Jiri Kosina
SUSE Labs

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[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

csiph-web