Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
selftests/hid: fix compilation when bpf_wq and hid_device are not exported
This can happen in situations when CONFIG_HID_SUPPORT is set to no, or
some complex situations where struct bpf_wq is not exported.
So do the usual dance of hiding them before including vmlinux.h, and
then redefining them and make use of CO-RE to have the correct offsets.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202603111558.KLCIxsZB-lkp@intel.com/
Fixes: fe8d561db3e8 ("selftests/hid: add wq test for hid_bpf_input_report()")
Cc: stable@vger.kernel.org
Acked-by: Jiri Kosina <jkosina@suse.com>
Reviewed-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
+12
+12
tools/testing/selftests/hid/progs/hid_bpf_helpers.h
+12
tools/testing/selftests/hid/progs/hid_bpf_helpers.h
···
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#define __HID_BPF_HELPERS_H
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/* "undefine" structs and enums in vmlinux.h, because we "override" them below */
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#define bpf_wq bpf_wq___not_used
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#define hid_bpf_ctx hid_bpf_ctx___not_used
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#define hid_bpf_ops hid_bpf_ops___not_used
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#define hid_device hid_device___not_used
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#define hid_report_type hid_report_type___not_used
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#define hid_class_request hid_class_request___not_used
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#define hid_bpf_attach_flags hid_bpf_attach_flags___not_used
···
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#include "vmlinux.h"
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#undef bpf_wq
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#undef hid_bpf_ctx
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#undef hid_bpf_ops
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#undef hid_device
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#undef hid_report_type
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#undef hid_class_request
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#undef hid_bpf_attach_flags
···
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HID_FEATURE_REPORT = 2,
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HID_REPORT_TYPES,
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};
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struct hid_device {
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unsigned int id;
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} __attribute__((preserve_access_index));
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struct bpf_wq {
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__u64 __opaque[2];
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};
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struct hid_bpf_ctx {