From 6668ed271eaefaa63e686bdfbedaeb7b8e492722 Mon Sep 17 00:00:00 2001 From: Kumar Kartikeya Dwivedi Date: Fri, 4 Sep 2026 10:43:19 +0200 Subject: selftests/bpf: Reject graph kptr use after RCU unlock Add a sleepable verifier test that loads a graph-node local kptr in an explicit RCU read-side critical section, then passes its node to bpf_rbtree_remove() after the section ends. Before the verifier fix, the stale NON_OWN_REF flag makes the node look like a live borrowed reference and the program is accepted. After the fix, the pointer is demoted without NON_OWN_REF and the graph kfunc argument is rejected. Also exercise a graph kptr loaded while a spin lock provides implicit RCU protection. The pointer must be invalidated when the lock is released, which guards the required ordering between non-owning-reference invalidation and RCU demotion. Update the existing fault-protected load test state description. The post-unlock pointer no longer carries NON_OWN_REF, but remains readable because the load is rewritten to use BPF_PROBE_MEM. Signed-off-by: Kumar Kartikeya Dwivedi Link: https://lore.kernel.org/r/20260904084325.52250-7-memxor@gmail.com Signed-off-by: Alexei Starovoitov --- include/sound/max98095.h | 61 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 include/sound/max98095.h (limited to 'include/sound/max98095.h') diff --git a/include/sound/max98095.h b/include/sound/max98095.h new file mode 100644 index 000000000..731c88551 --- /dev/null +++ b/include/sound/max98095.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Platform data for MAX98095 + * + * Copyright 2011 Maxim Integrated Products + */ + +#ifndef __SOUND_MAX98095_PDATA_H__ +#define __SOUND_MAX98095_PDATA_H__ + +/* Equalizer filter response configuration */ +struct max98095_eq_cfg { + const char *name; + unsigned int rate; + u16 band1[5]; + u16 band2[5]; + u16 band3[5]; + u16 band4[5]; + u16 band5[5]; +}; + +/* Biquad filter response configuration */ +struct max98095_biquad_cfg { + const char *name; + unsigned int rate; + u16 band1[5]; + u16 band2[5]; +}; + +/* codec platform data */ +struct max98095_pdata { + + /* Equalizers for DAI1 and DAI2 */ + struct max98095_eq_cfg *eq_cfg; + unsigned int eq_cfgcnt; + + /* Biquad filter for DAI1 and DAI2 */ + struct max98095_biquad_cfg *bq_cfg; + unsigned int bq_cfgcnt; + + /* Analog/digital microphone configuration: + * 0 = analog microphone input (normal setting) + * 1 = digital microphone input + */ + unsigned int digmic_left_mode:1; + unsigned int digmic_right_mode:1; + + /* Pin5 is the mechanical method of sensing jack insertion + * but it is something that might not be supported. + * 0 = PIN5 not supported + * 1 = PIN5 supported + */ + unsigned int jack_detect_pin5en:1; + + /* Slew amount for jack detection. Calculated as 4 * (delay + 1). + * Default delay is 24 to get a time of 100ms. + */ + unsigned int jack_detect_delay; +}; + +#endif -- cgit v1.3.1