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/gnss/serial.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 drivers/gnss/serial.h (limited to 'drivers/gnss/serial.h') diff --git a/drivers/gnss/serial.h b/drivers/gnss/serial.h new file mode 100644 index 000000000..621953f78 --- /dev/null +++ b/drivers/gnss/serial.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Generic serial GNSS receiver driver + * + * Copyright (C) 2018 Johan Hovold + */ + +#ifndef _LINUX_GNSS_SERIAL_H +#define _LINUX_GNSS_SERIAL_H + +#include +#include + +struct gnss_serial { + struct serdev_device *serdev; + struct gnss_device *gdev; + speed_t speed; + const struct gnss_serial_ops *ops; + unsigned long drvdata[]; +}; + +enum gnss_serial_pm_state { + GNSS_SERIAL_OFF, + GNSS_SERIAL_ACTIVE, + GNSS_SERIAL_STANDBY, +}; + +struct gnss_serial_ops { + int (*set_power)(struct gnss_serial *gserial, + enum gnss_serial_pm_state state); +}; + +extern const struct dev_pm_ops gnss_serial_pm_ops; + +struct gnss_serial *gnss_serial_allocate(struct serdev_device *gserial, + size_t data_size); +void gnss_serial_free(struct gnss_serial *gserial); + +int gnss_serial_register(struct gnss_serial *gserial); +void gnss_serial_deregister(struct gnss_serial *gserial); + +static inline void *gnss_serial_get_drvdata(struct gnss_serial *gserial) +{ + return gserial->drvdata; +} + +#endif /* _LINUX_GNSS_SERIAL_H */ -- cgit v1.3.1