lkml.org 
[lkml]   [2022]   [Feb]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH bpf-next v1 1/6] HID: initial BPF implementation
On Thu, Feb 24, 2022 at 12:08:23PM +0100, Benjamin Tissoires wrote:
> index 000000000000..243ac45a253f
> --- /dev/null
> +++ b/include/uapi/linux/bpf_hid.h
> @@ -0,0 +1,39 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later WITH Linux-syscall-note */
> +
> +/*
> + * HID BPF public headers
> + *
> + * Copyright (c) 2021 Benjamin Tissoires
> + */
> +
> +#ifndef _UAPI__LINUX_BPF_HID_H__
> +#define _UAPI__LINUX_BPF_HID_H__
> +
> +#include <linux/types.h>
> +
> +#define HID_BPF_MAX_BUFFER_SIZE 16384 /* 16kb */
> +
> +struct hid_device;
> +
> +enum hid_bpf_event {
> + HID_BPF_UNDEF = 0,
> + HID_BPF_DEVICE_EVENT,
> +};
> +
> +/* type is HID_BPF_DEVICE_EVENT */
> +struct hid_bpf_ctx_device_event {
> + __u8 data[HID_BPF_MAX_BUFFER_SIZE];
> + unsigned long size;

That's not a valid type to cross the user/kernel boundry, shouldn't it
be "__u64"? But really, isn't __u32 enough here?

thanks,

greg k-h

\
 
 \ /
  Last update: 2022-02-24 12:54    [W:0.168 / U:0.896 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site