From 034dd340b08be1f2f0477ad16131d609f9dbd53c Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 30 Aug 2026 09:22:00 -0700 Subject: Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Fix error output of boot instance creation failure Currently if a boot instance creation fails, instead of printing out the name of the instance that failed, it prints "(null)". That is because it prints "cur_str" that had already been processed by strsep(). Print the saved name instead. While at it, print the error code of the failure. - Fix use-after-free for same named historgrams Histograms can be named so that they can be used in multiple events. But if the named histogram has a variable attached, the second event that uses the named histogram which duplicates it and needs to free the original after duplication leaves the old variable in place and still visible. If another histogram uses than variable, it will use the stale one which will try to reference the freed duplicate histogram and crash the kernel. Free the duplicate variables along with the duplicated histogram data. - Check return value of kthread_run() in event self test The events self tests uses a kthread for testing but does not check if it succeeded in creating a kthread. If the kthread creation were to fail, the code will still try to call kthread_stop() on the error returned. - Fix race between reading trace_pipe and updating subbuffer size If a user is reading the trace_pipe file at the same time they update the ring buffer sub-buffer size, can cause the trace_pipe read to read stale data. Add trace_access_lock() around updating the ring buffer sub-buffer size. - Fix eventfs_inode on failure path in creation of the events directory In the creation of the "events" directory, if after allocating the eventfs_inode a failure is detected, it calls cleanup_ei() which calls free_ei(). The free_ei() will test if eventfs_inode being freed has no children. It is a bug if it does. But on the failure case of the creation of the "events" directory, the children lists have not yet been initialized and the free will trigger a warning because list_empty() on an uninitialized list returns false. Move the initialization into init_ei() where it makes more sense and makes sure that a created eventfs_inode has its lists initialized upon creation. - Check return value of kthread_run() in ftrace direct sample code The sample code that shows how to use the ftrace direct calls does not test the return of kthread_run() to see if it succeeds. Return a failure if the kthread_run() doesn't succeed. - Clear user events state on fork in case of alloc failure On fork, the child gets a pointer to the parent's user events state. It makes a copy of it then updates the child's pointer to it. But if the allocation fails, the duplication function leaves the child with a pointer to its parent's descriptor. When the child cleans up its data, it will free the parent's descriptor while the parent is still using it. In the duplication function, set the child's user_event_mm to NULL before testing if the allocation succeeded, and when it exits it will not free the parent's descriptor. - Fix retry exhaustion in simple ring buffer reader swap simple_ring_buffer_swap_reader_page() starts with retry set to 8 and post-decrements it only after a failed link replacement. On the final attempt, a successful replacement leaves retry at zero, while a failed replacement leaves it at -1. But the check for success expects the retry value to be non-zero and exits with an error on zero. This is the opposite result. Fix it. - Fail nicely when the remote swap_reader_page() returns an error Currently, if the swap_reader_page() of a remote buffer fails, it triggers a WARN_ON_ONCE() and continues normally. Instead, have it exit with an error and a pr_warn() print instead of a full WARNING. * tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Stop remote reader update when page swap fails tracing: Fix retry exhaustion in simple ring buffer reader swap tracing/user_events: Clear copied tracing state before fork duplication samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify eventfs: Initialize ei->children and ei->list in init_ei() tracing: Fix use-after-free in trace_pipe read on sub-buffer order change tracing: Fix crash passing ERR_PTR to kthread_stop() tracing: Fix use-after-free with same-name named triggers tracing: Fix logged instance name on creation failure --- include/uapi/sound/hdspm.h | 211 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 211 insertions(+) create mode 100644 include/uapi/sound/hdspm.h (limited to 'include/uapi/sound/hdspm.h') diff --git a/include/uapi/sound/hdspm.h b/include/uapi/sound/hdspm.h new file mode 100644 index 000000000..7043bb3d4 --- /dev/null +++ b/include/uapi/sound/hdspm.h @@ -0,0 +1,211 @@ +/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ +#ifndef __SOUND_HDSPM_H +#define __SOUND_HDSPM_H +/* + * Copyright (C) 2003 Winfried Ritsch (IEM) + * based on hdsp.h from Thomas Charbonnel (thomas@undata.org) + */ + +#ifdef __linux__ +#include +#endif + +/* Maximum channels is 64 even on 56Mode you have 64playbacks to matrix */ +#define HDSPM_MAX_CHANNELS 64 + +enum hdspm_io_type { + MADI, + MADIface, + AIO, + AES32, + RayDAT +}; + +enum hdspm_speed { + ss, + ds, + qs +}; + +/* -------------------- IOCTL Peak/RMS Meters -------------------- */ + +struct hdspm_peak_rms { + __u32 input_peaks[64]; + __u32 playback_peaks[64]; + __u32 output_peaks[64]; + + __u64 input_rms[64]; + __u64 playback_rms[64]; + __u64 output_rms[64]; + + __u8 speed; /* enum {ss, ds, qs} */ + int status2; +}; + +#define SNDRV_HDSPM_IOCTL_GET_PEAK_RMS \ + _IOR('H', 0x42, struct hdspm_peak_rms) + +/* ------------ CONFIG block IOCTL ---------------------- */ + +struct hdspm_config { + unsigned char pref_sync_ref; + unsigned char wordclock_sync_check; + unsigned char madi_sync_check; + unsigned int system_sample_rate; + unsigned int autosync_sample_rate; + unsigned char system_clock_mode; + unsigned char clock_source; + unsigned char autosync_ref; + unsigned char line_out; + unsigned int passthru; + unsigned int analog_out; +}; + +#define SNDRV_HDSPM_IOCTL_GET_CONFIG \ + _IOR('H', 0x41, struct hdspm_config) + +/* + * If there's a TCO (TimeCode Option) board installed, + * there are further options and status data available. + * The hdspm_ltc structure contains the current SMPTE + * timecode and some status information and can be + * obtained via SNDRV_HDSPM_IOCTL_GET_LTC or in the + * hdspm_status struct. + */ + +enum hdspm_ltc_format { + format_invalid, + fps_24, + fps_25, + fps_2997, + fps_30 +}; + +enum hdspm_ltc_frame { + frame_invalid, + drop_frame, + full_frame +}; + +enum hdspm_ltc_input_format { + ntsc, + pal, + no_video +}; + +struct hdspm_ltc { + unsigned int ltc; + + enum hdspm_ltc_format format; + enum hdspm_ltc_frame frame; + enum hdspm_ltc_input_format input_format; +}; + +#define SNDRV_HDSPM_IOCTL_GET_LTC _IOR('H', 0x46, struct hdspm_ltc) + +/* + * The status data reflects the device's current state + * as determined by the card's configuration and + * connection status. + */ + +enum hdspm_sync { + hdspm_sync_no_lock = 0, + hdspm_sync_lock = 1, + hdspm_sync_sync = 2 +}; + +enum hdspm_madi_input { + hdspm_input_optical = 0, + hdspm_input_coax = 1 +}; + +enum hdspm_madi_channel_format { + hdspm_format_ch_64 = 0, + hdspm_format_ch_56 = 1 +}; + +enum hdspm_madi_frame_format { + hdspm_frame_48 = 0, + hdspm_frame_96 = 1 +}; + +enum hdspm_syncsource { + syncsource_wc = 0, + syncsource_madi = 1, + syncsource_tco = 2, + syncsource_sync = 3, + syncsource_none = 4 +}; + +struct hdspm_status { + __u8 card_type; /* enum hdspm_io_type */ + enum hdspm_syncsource autosync_source; + + __u64 card_clock; + __u32 master_period; + + union { + struct { + __u8 sync_wc; /* enum hdspm_sync */ + __u8 sync_madi; /* enum hdspm_sync */ + __u8 sync_tco; /* enum hdspm_sync */ + __u8 sync_in; /* enum hdspm_sync */ + __u8 madi_input; /* enum hdspm_madi_input */ + __u8 channel_format; /* enum hdspm_madi_channel_format */ + __u8 frame_format; /* enum hdspm_madi_frame_format */ + } madi; + } card_specific; +}; + +#define SNDRV_HDSPM_IOCTL_GET_STATUS \ + _IOR('H', 0x47, struct hdspm_status) + +/* + * Get information about the card and its add-ons. + */ + +#define HDSPM_ADDON_TCO 1 + +struct hdspm_version { + __u8 card_type; /* enum hdspm_io_type */ + char cardname[20]; + unsigned int serial; + unsigned short firmware_rev; + int addons; +}; + +#define SNDRV_HDSPM_IOCTL_GET_VERSION _IOR('H', 0x48, struct hdspm_version) + +/* ------------- get Matrix Mixer IOCTL --------------- */ + +/* MADI mixer: 64inputs+64playback in 64outputs = 8192 => *4Byte = + * 32768 Bytes + */ + +/* organisation is 64 channelfader in a continuous memory block */ +/* equivalent to hardware definition, maybe for future feature of mmap of + * them + */ +/* each of 64 outputs has 64 infader and 64 outfader: + Ins to Outs mixer[out].in[in], Outstreams to Outs mixer[out].pb[pb] */ + +#define HDSPM_MIXER_CHANNELS HDSPM_MAX_CHANNELS + +struct hdspm_channelfader { + unsigned int in[HDSPM_MIXER_CHANNELS]; + unsigned int pb[HDSPM_MIXER_CHANNELS]; +}; + +struct hdspm_mixer { + struct hdspm_channelfader ch[HDSPM_MIXER_CHANNELS]; +}; + +struct hdspm_mixer_ioctl { + struct hdspm_mixer *mixer; +}; + +/* use indirect access due to the limit of ioctl bit size */ +#define SNDRV_HDSPM_IOCTL_GET_MIXER _IOR('H', 0x44, struct hdspm_mixer_ioctl) + +#endif -- cgit v1.3.1