Re: [PATCH bpf-next v2 06/28] samples/bpf: add new hid_mouse example

Everything should be available in the selftest part of the tree, but
providing an example without uhid and hidraw will be more easy to
follow for users.

Signed-off-by: Benjamin Tissoires <redacted>

---

changes in v2:
- split the series by bpf/libbpf/hid/selftests and samples
---
 samples/bpf/.gitignore       |   1 +
 samples/bpf/Makefile         |   4 ++
 samples/bpf/hid_mouse_kern.c |  66 ++++++++++++++++++
 samples/bpf/hid_mouse_user.c | 129 +++++++++++++++++++++++++++++++++++
 4 files changed, 200 insertions(+)
 create mode 100644 samples/bpf/hid_mouse_kern.c
 create mode 100644 samples/bpf/hid_mouse_user.c

diff --git a/samples/bpf/.gitignore b/samples/bpf/.gitignore
index 0e7bfdbff80a..65440bd618b2 100644
--- a/samples/bpf/.gitignore
+++ b/samples/bpf/.gitignore

@@ -2,6 +2,7 @@
 cpustat
 fds_example
 hbm
+hid_mouse
 ibumad
 lathist
 lwt_len_hist

diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 38638845db9d..84ef458487df 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile

@@ -60,6 +60,8 @@ tprogs-y += xdp_redirect_map
 tprogs-y += xdp_redirect
 tprogs-y += xdp_monitor
 
+tprogs-y += hid_mouse
+
 # Libbpf dependencies
 LIBBPF_SRC = $(TOOLS_PATH)/lib/bpf
 LIBBPF_OUTPUT = $(abspath $(BPF_SAMPLES_PATH))/libbpf

@@ -124,6 +126,7 @@ xdp_redirect_cpu-objs := xdp_redirect_cpu_user.o $(XDP_SAMPLE)
 xdp_redirect_map-objs := xdp_redirect_map_user.o $(XDP_SAMPLE)
 xdp_redirect-objs := xdp_redirect_user.o $(XDP_SAMPLE)
 xdp_monitor-objs := xdp_monitor_user.o $(XDP_SAMPLE)
+hid_mouse-objs := hid_mouse_user.o
 
 # Tell kbuild to always build the programs
 always-y := $(tprogs-y)

@@ -181,6 +184,7 @@ always-y += ibumad_kern.o
 always-y += hbm_out_kern.o
 always-y += hbm_edt_kern.o
 always-y += xdpsock_kern.o
+always-y += hid_mouse_kern.o
 
 ifeq ($(ARCH), arm)
 # Strip all except -D__LINUX_ARM_ARCH__ option needed to handle linux

diff --git a/samples/bpf/hid_mouse_kern.c b/samples/bpf/hid_mouse_kern.c
new file mode 100644
index 000000000000..c24a12e06b40
--- /dev/null
+++ b/samples/bpf/hid_mouse_kern.c

@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2021 Benjamin Tissoires