linux-kernel - Re: [PATCH bpf-next v2 08/28] HID: allow to change the report descriptor from an eBPF program

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Date:   Fri, 4 Mar 2022 19:32:55 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc:     Jiri Kosina <jikos@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>, Shuah Khan <shuah@...nel.org>,
        Dave Marchevsky <davemarchevsky@...com>,
        Joe Stringer <joe@...ium.io>,
        Tero Kristo <tero.kristo@...ux.intel.com>,
        linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH bpf-next v2 08/28] HID: allow to change the report
 descriptor from an eBPF program

On Fri, Mar 04, 2022 at 06:28:32PM +0100, Benjamin Tissoires wrote:
> Make use of BPF_HID_ATTACH_RDESC_FIXUP so we can trigger an rdesc fixup
> in the bpf world.
> 
> Whenever the program gets attached/detached, the device is reconnected
> meaning that userspace will see it disappearing and reappearing with
> the new report descriptor.
> 
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
> 


Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>