From 9cc63f8bcd560c760d0b12e15bba8f81c86237cf Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 14 Aug 2026 15:43:51 -0700 Subject: Merge branches 'expcb.2026.07.24a', 'misc.2026.07.30a', 'rcu-tasks.2026.07.30a', 'srcu.2026.08.11a' and 'torture.2026.08.14a' into HEAD Changes: Make expedited grace periods expedite normal RCU callbacks Miscellaneous fixes: * Improve diagnostic output with character task states. * Mark accesses to inform KCSAN of concurrency design. * Move from kmalloc() to kmalloc_obj(). * Documentation updates. * Improve handling of RCU deferred quiescent states. * Clean up unused function arguments and structure fields. * Reduce show_rcu_gp_kthreads() stack space. Tasks RCU updates: * Clean up after SRCU re-implementation of Tasks Trace RCU. * Mark accesses to inform KCSAN of concurrency design. * Add ->lazy_timer status to diagnostic output. * Remove an unnecessary memory barrier. * Fix a data race, courtesy of KCSAN. * Documentation updates. * Convert cond_resched_tasks_rcu_qs() from macro to static inline function. SRCU updates: * Add Rust helpers for SRCU. * Avoid losing queued work at cleanup_srcu_struct() time. Torture-test updates: * Preparation work for immediate RCU priority deboosting. * Test RCU readers from real interrupt handlers (as opposed to softirq). * Simplify code through use of cpumask_next_wrap(). * Improve diagnostic output with character task states. * Add rcutorture.nwriters parameter to allow lightweight stall testing, and rcutorture.stall_only to make doing so easier. * Test an RCU Tasks Trace grace period implying an RCU grace period. * Make RCU Tasks Trace torturing track reader batches. * Fix a data race, courtesy of KCSAN. * Plug a shuffle_tmp_mask memory leak on kthread spawn failure. --- include/sound/seq_oss.h | 83 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 include/sound/seq_oss.h (limited to 'include/sound/seq_oss.h') diff --git a/include/sound/seq_oss.h b/include/sound/seq_oss.h new file mode 100644 index 000000000..7bf10a0fa --- /dev/null +++ b/include/sound/seq_oss.h @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef __SOUND_SEQ_OSS_H +#define __SOUND_SEQ_OSS_H + +/* + * OSS compatible sequencer driver + * + * Copyright (C) 1998,99 Takashi Iwai + */ + +#include +#include + +/* + * argument structure for synthesizer operations + */ +struct snd_seq_oss_arg { + /* given by OSS sequencer */ + int app_index; /* application unique index */ + int file_mode; /* file mode - see below */ + int seq_mode; /* sequencer mode - see below */ + + /* following must be initialized in open callback */ + struct snd_seq_addr addr; /* opened port address */ + void *private_data; /* private data for lowlevel drivers */ + + /* note-on event passing mode: initially given by OSS seq, + * but configurable by drivers - see below + */ + int event_passing; +}; + + +/* + * synthesizer operation callbacks + */ +struct snd_seq_oss_callback { + struct module *owner; + int (*open)(struct snd_seq_oss_arg *p, void *closure); + int (*close)(struct snd_seq_oss_arg *p); + int (*ioctl)(struct snd_seq_oss_arg *p, unsigned int cmd, unsigned long arg); + int (*load_patch)(struct snd_seq_oss_arg *p, int format, const char __user *buf, int offs, int count); + int (*reset)(struct snd_seq_oss_arg *p); + int (*raw_event)(struct snd_seq_oss_arg *p, unsigned char *data); +}; + +/* flag: file_mode */ +#define SNDRV_SEQ_OSS_FILE_ACMODE 3 +#define SNDRV_SEQ_OSS_FILE_READ 1 +#define SNDRV_SEQ_OSS_FILE_WRITE 2 +#define SNDRV_SEQ_OSS_FILE_NONBLOCK 4 + +/* flag: seq_mode */ +#define SNDRV_SEQ_OSS_MODE_SYNTH 0 +#define SNDRV_SEQ_OSS_MODE_MUSIC 1 + +/* flag: event_passing */ +#define SNDRV_SEQ_OSS_PROCESS_EVENTS 0 /* key == 255 is processed as velocity change */ +#define SNDRV_SEQ_OSS_PASS_EVENTS 1 /* pass all events to callback */ +#define SNDRV_SEQ_OSS_PROCESS_KEYPRESS 2 /* key >= 128 will be processed as key-pressure */ + +/* default control rate: fixed */ +#define SNDRV_SEQ_OSS_CTRLRATE 100 + +/* default max queue length: configurable by module option */ +#define SNDRV_SEQ_OSS_MAX_QLEN 1024 + + +/* + * data pointer to snd_seq_register_device + */ +struct snd_seq_oss_reg { + int type; + int subtype; + int nvoices; + struct snd_seq_oss_callback oper; + void *private_data; +}; + +/* device id */ +#define SNDRV_SEQ_DEV_ID_OSS "seq-oss" + +#endif /* __SOUND_SEQ_OSS_H */ -- cgit v1.3.1