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| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /include/sound/sdca_jack.h | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'include/sound/sdca_jack.h')
| -rw-r--r-- | include/sound/sdca_jack.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/sound/sdca_jack.h b/include/sound/sdca_jack.h new file mode 100644 index 000000000..871ba2d81 --- /dev/null +++ b/include/sound/sdca_jack.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * The MIPI SDCA specification is available for public downloads at + * https://www.mipi.org/mipi-sdca-v1-0-download + * + * Copyright (C) 2025 Cirrus Logic, Inc. and + * Cirrus Logic International Semiconductor Ltd. + */ + +#ifndef __SDCA_JACK_H__ +#define __SDCA_JACK_H__ + +struct sdca_interrupt; +struct snd_kcontrol; +struct snd_soc_jack; + +/** + * struct jack_state - Jack state structure to keep data between interrupts + * @kctl: Pointer to the ALSA control attached to this jack + * @jack: Pointer to the ASoC jack struct for this jack + * @mask: Possible reported jack status bits for this jack + */ +struct jack_state { + struct snd_kcontrol *kctl; + struct snd_soc_jack *jack; + + unsigned int mask; +}; + +int sdca_jack_alloc_state(struct sdca_interrupt *interrupt); +int sdca_jack_init_state(struct sdca_interrupt *interrupt); +void sdca_jack_free_state(struct sdca_interrupt *interrupt); + +int sdca_jack_process(struct sdca_interrupt *interrupt); +int sdca_jack_set_jack(struct sdca_interrupt_info *info, struct snd_soc_jack *jack); +int sdca_jack_report(struct sdca_interrupt *interrupt); + +#endif // __SDCA_JACK_H__ |