linux-kernel - Re: (subset) [PATCH HID v2 00/11] HID: bpf: add a new hook to control hid-generic

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Message-ID: <etbeblypdylnngwuwjfqkmkduk4iup7uq4c5zkwrssoi6u7jvg@gtf3gpzrloii>
Date: Fri, 13 Sep 2024 15:47:05 +0200
From: Benjamin Tissoires <bentiss@...nel.org>
To: Jiri Kosina <jikos@...nel.org>, 
	Peter Hutterer <peter.hutterer@...-t.net>, Vicki Pfau <vi@...rift.com>, Shuah Khan <shuah@...nel.org>
Cc: linux-input@...r.kernel.org, linux-kselftest@...r.kernel.org, 
	linux-kernel@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: (subset) [PATCH HID v2 00/11] HID: bpf: add a new hook to
 control hid-generic

On Sep 13 2024, Benjamin Tissoires wrote:
> On Tue, 10 Sep 2024 23:43:36 +0900, Benjamin Tissoires wrote:
> > This is a slight change from the fundamentals of HID-BPF.
> > In theory, HID-BPF is abstract to the kernel itself, and makes
> > only changes at the HID level (through report descriptors or
> > events emitted to/from the device).
> > 
> > However, we have seen a few use cases where HID-BPF might interact with
> > the running kernel when the target device is already handled by a
> > specific device.
> > 
> > [...]
> 
> Applied to hid/hid.git (for-6.12/bpf), thanks!
> 
> [01/11] HID: bpf: move HID-BPF report descriptor fixup earlier
>         https://git.kernel.org/hid/hid/c/f10a11b7b599
> [02/11] HID: core: save one kmemdup during .probe()
>         https://git.kernel.org/hid/hid/c/6941754dbbc7
> [03/11] HID: core: remove one more kmemdup on .probe()
>         https://git.kernel.org/hid/hid/c/4fe29f36d2a3
> [04/11] HID: bpf: allow write access to quirks field in struct hid_device
>         https://git.kernel.org/hid/hid/c/b722f588adc6
> [05/11] selftests/hid: add dependency on hid_common.h
>         https://git.kernel.org/hid/hid/c/3d816765e12e
> [06/11] selftests/hid: cleanup C tests by adding a common struct uhid_device
>         https://git.kernel.org/hid/hid/c/28023a0f99d1
> [07/11] selftests/hid: allow to parametrize bus/vid/pid/rdesc on the test device
>         https://git.kernel.org/hid/hid/c/10d3147f9bb1
> [08/11] HID: add per device quirk to force bind to hid-generic
>         https://git.kernel.org/hid/hid/c/d030f826ea47
> [09/11] selftests/hid: add test for assigning a given device to hid-generic
>         https://git.kernel.org/hid/hid/c/10929078201f
> 

Just for completeness, I've dropped 10/11 and 11/11 when applying the
series because even if they are working it's unclear if the use case is
rock solid, like the first one is.

The patches are still on the LKML, so if anyone believes they required
it, we can alwasy pull them in later.

Cheers,
Benjamin