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| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /include/sound/seq_kernel.h | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci
This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.
Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.
Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'include/sound/seq_kernel.h')
| -rw-r--r-- | include/sound/seq_kernel.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/include/sound/seq_kernel.h b/include/sound/seq_kernel.h new file mode 100644 index 000000000..00c32eed2 --- /dev/null +++ b/include/sound/seq_kernel.h @@ -0,0 +1,102 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef __SOUND_SEQ_KERNEL_H +#define __SOUND_SEQ_KERNEL_H + +/* + * Main kernel header file for the ALSA sequencer + * Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl> + */ +#include <linux/time.h> +#include <sound/asequencer.h> + +typedef struct snd_seq_real_time snd_seq_real_time_t; +typedef union snd_seq_timestamp snd_seq_timestamp_t; + +/* maximum number of queues */ +#define SNDRV_SEQ_MAX_QUEUES 32 + +/* max number of concurrent clients */ +#define SNDRV_SEQ_MAX_CLIENTS 192 + +/* max number of concurrent ports */ +#define SNDRV_SEQ_MAX_PORTS 254 + +/* max number of events in memory pool */ +#define SNDRV_SEQ_MAX_EVENTS 2000 + +/* default number of events in memory pool */ +#define SNDRV_SEQ_DEFAULT_EVENTS 500 + +/* max number of events in memory pool for one client (outqueue) */ +#define SNDRV_SEQ_MAX_CLIENT_EVENTS 2000 + +/* default number of events in memory pool for one client (outqueue) */ +#define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS 200 + +/* max delivery path length */ +/* NOTE: this shouldn't be greater than MAX_LOCKDEP_SUBCLASSES */ +#define SNDRV_SEQ_MAX_HOPS 8 + +/* max size of event size */ +#define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff + +/* call-backs for kernel port */ +struct snd_seq_port_callback { + struct module *owner; + void *private_data; + int (*subscribe)(void *private_data, struct snd_seq_port_subscribe *info); + int (*unsubscribe)(void *private_data, struct snd_seq_port_subscribe *info); + int (*use)(void *private_data, struct snd_seq_port_subscribe *info); + int (*unuse)(void *private_data, struct snd_seq_port_subscribe *info); + int (*event_input)(struct snd_seq_event *ev, int direct, void *private_data, int atomic, int hop); + void (*private_free)(void *private_data); + /*...*/ +}; + +/* interface for kernel client */ +__printf(3, 4) +int snd_seq_create_kernel_client(struct snd_card *card, int client_index, + const char *name_fmt, ...); +int snd_seq_delete_kernel_client(int client); +int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, + struct file *file, bool blocking); +int snd_seq_kernel_client_dispatch(int client, struct snd_seq_event *ev, int atomic, int hop); +int snd_seq_kernel_client_ctl(int client, unsigned int cmd, void *arg); + +#define SNDRV_SEQ_EXT_MASK 0xc0000000 +#define SNDRV_SEQ_EXT_USRPTR 0x80000000 +#define SNDRV_SEQ_EXT_CHAINED 0x40000000 + +typedef int (*snd_seq_dump_func_t)(void *ptr, void *buf, int count); +int snd_seq_expand_var_event(const struct snd_seq_event *event, int count, char *buf, + int in_kernel, int size_aligned); +int snd_seq_expand_var_event_at(const struct snd_seq_event *event, int count, + char *buf, int offset); +int snd_seq_dump_var_event(const struct snd_seq_event *event, + snd_seq_dump_func_t func, void *private_data); + +/* size of the event packet; it can be greater than snd_seq_event size */ +static inline size_t snd_seq_event_packet_size(struct snd_seq_event *ev) +{ + if (snd_seq_ev_is_ump(ev)) + return sizeof(struct snd_seq_ump_event); + return sizeof(struct snd_seq_event); +} + +/* interface for OSS emulation */ +int snd_seq_set_queue_tempo(int client, struct snd_seq_queue_tempo *tempo); + +/* port attach/detach */ +int snd_seq_event_port_attach(int client, struct snd_seq_port_callback *pcbp, + int cap, int type, int midi_channels, int midi_voices, char *portname); +int snd_seq_event_port_detach(int client, int port); + +#ifdef CONFIG_MODULES +void snd_seq_autoload_init(void); +void snd_seq_autoload_exit(void); +#else +#define snd_seq_autoload_init() +#define snd_seq_autoload_exit() +#endif + +#endif /* __SOUND_SEQ_KERNEL_H */ |
