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 --- sound/soc/codecs/mt6660.h | 77 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 sound/soc/codecs/mt6660.h (limited to 'sound/soc/codecs/mt6660.h') diff --git a/sound/soc/codecs/mt6660.h b/sound/soc/codecs/mt6660.h new file mode 100644 index 000000000..054a3c56e --- /dev/null +++ b/sound/soc/codecs/mt6660.h @@ -0,0 +1,77 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2019 MediaTek Inc. + */ + +#ifndef __SND_SOC_MT6660_H +#define __SND_SOC_MT6660_H + +#include +#include + +#pragma pack(push, 1) +struct mt6660_platform_data { + u8 init_setting_num; + u32 *init_setting_addr; + u32 *init_setting_mask; + u32 *init_setting_val; +}; + +struct mt6660_chip { + struct i2c_client *i2c; + struct device *dev; + struct platform_device *param_dev; + struct mt6660_platform_data plat_data; + struct mutex io_lock; + struct regmap *regmap; + u16 chip_rev; +}; +#pragma pack(pop) + +#define MT6660_REG_DEVID (0x00) +#define MT6660_REG_SYSTEM_CTRL (0x03) +#define MT6660_REG_IRQ_STATUS1 (0x05) +#define MT6660_REG_ADDA_CLOCK (0x07) +#define MT6660_REG_SERIAL_CFG1 (0x10) +#define MT6660_REG_DATAO_SEL (0x12) +#define MT6660_REG_TDM_CFG3 (0x15) +#define MT6660_REG_HPF_CTRL (0x18) +#define MT6660_REG_HPF1_COEF (0x1A) +#define MT6660_REG_HPF2_COEF (0x1B) +#define MT6660_REG_PATH_BYPASS (0x1E) +#define MT6660_REG_WDT_CTRL (0x20) +#define MT6660_REG_HCLIP_CTRL (0x24) +#define MT6660_REG_VOL_CTRL (0x29) +#define MT6660_REG_SPS_CTRL (0x30) +#define MT6660_REG_SIGMAX (0x33) +#define MT6660_REG_CALI_T0 (0x3F) +#define MT6660_REG_BST_CTRL (0x40) +#define MT6660_REG_PROTECTION_CFG (0x46) +#define MT6660_REG_DA_GAIN (0x4c) +#define MT6660_REG_AUDIO_IN2_SEL (0x50) +#define MT6660_REG_SIG_GAIN (0x51) +#define MT6660_REG_PLL_CFG1 (0x60) +#define MT6660_REG_DRE_CTRL (0x68) +#define MT6660_REG_DRE_THDMODE (0x69) +#define MT6660_REG_DRE_CORASE (0x6B) +#define MT6660_REG_PWM_CTRL (0x70) +#define MT6660_REG_DC_PROTECT_CTRL (0x74) +#define MT6660_REG_ADC_USB_MODE (0x7c) +#define MT6660_REG_INTERNAL_CFG (0x88) +#define MT6660_REG_RESV0 (0x98) +#define MT6660_REG_RESV1 (0x99) +#define MT6660_REG_RESV2 (0x9A) +#define MT6660_REG_RESV3 (0x9B) +#define MT6660_REG_RESV6 (0xA2) +#define MT6660_REG_RESV7 (0xA3) +#define MT6660_REG_RESV10 (0xB0) +#define MT6660_REG_RESV11 (0xB1) +#define MT6660_REG_RESV16 (0xB6) +#define MT6660_REG_RESV17 (0xB7) +#define MT6660_REG_RESV19 (0xB9) +#define MT6660_REG_RESV21 (0xBB) +#define MT6660_REG_RESV23 (0xBD) +#define MT6660_REG_RESV31 (0xD3) +#define MT6660_REG_RESV40 (0xE0) + +#endif /* __SND_SOC_MT6660_H */ -- cgit v1.3.1