From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/firewire/nosy-user.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 drivers/firewire/nosy-user.h (limited to 'drivers/firewire/nosy-user.h') diff --git a/drivers/firewire/nosy-user.h b/drivers/firewire/nosy-user.h new file mode 100644 index 000000000..3446c5b77 --- /dev/null +++ b/drivers/firewire/nosy-user.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __nosy_user_h +#define __nosy_user_h + +#include +#include + +#define NOSY_IOC_GET_STATS _IOR('&', 0, struct nosy_stats) +#define NOSY_IOC_START _IO('&', 1) +#define NOSY_IOC_STOP _IO('&', 2) +#define NOSY_IOC_FILTER _IOW('&', 2, __u32) + +struct nosy_stats { + __u32 total_packet_count; + __u32 lost_packet_count; +}; + +/* + * Format of packets returned from the kernel driver: + * + * quadlet with timestamp (microseconds, CPU endian) + * quadlet-padded packet data... (little endian) + * quadlet with ack (little endian) + */ + +#endif /* __nosy_user_h */ -- cgit v1.3.1