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/media/dvb-frontends/sp2.h | 43 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 drivers/media/dvb-frontends/sp2.h (limited to 'drivers/media/dvb-frontends/sp2.h') diff --git a/drivers/media/dvb-frontends/sp2.h b/drivers/media/dvb-frontends/sp2.h new file mode 100644 index 000000000..b5ace0d76 --- /dev/null +++ b/drivers/media/dvb-frontends/sp2.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * CIMaX SP2/HF CI driver + * + * Copyright (C) 2014 Olli Salonen + */ + +#ifndef SP2_H +#define SP2_H + +#include + +/* + * I2C address + * 0x40 (port 0) + * 0x41 (port 1) + */ +struct sp2_config { + /* dvb_adapter to attach the ci to */ + struct dvb_adapter *dvb_adap; + + /* function ci_control handles the device specific ci ops */ + void *ci_control; + + /* priv is passed back to function ci_control */ + void *priv; +}; + +extern int sp2_ci_read_attribute_mem(struct dvb_ca_en50221 *en50221, + int slot, int addr); +extern int sp2_ci_write_attribute_mem(struct dvb_ca_en50221 *en50221, + int slot, int addr, u8 data); +extern int sp2_ci_read_cam_control(struct dvb_ca_en50221 *en50221, + int slot, u8 addr); +extern int sp2_ci_write_cam_control(struct dvb_ca_en50221 *en50221, + int slot, u8 addr, u8 data); +extern int sp2_ci_slot_reset(struct dvb_ca_en50221 *en50221, int slot); +extern int sp2_ci_slot_shutdown(struct dvb_ca_en50221 *en50221, int slot); +extern int sp2_ci_slot_ts_enable(struct dvb_ca_en50221 *en50221, int slot); +extern int sp2_ci_poll_slot_status(struct dvb_ca_en50221 *en50221, + int slot, int open); + +#endif -- cgit v1.3.1