diff options
| 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 /drivers/usb/chipidea/otg.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 'drivers/usb/chipidea/otg.h')
| -rw-r--r-- | drivers/usb/chipidea/otg.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/otg.h b/drivers/usb/chipidea/otg.h new file mode 100644 index 000000000..87629b81e --- /dev/null +++ b/drivers/usb/chipidea/otg.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2013-2014 Freescale Semiconductor, Inc. + * + * Author: Peter Chen + */ + +#ifndef __DRIVERS_USB_CHIPIDEA_OTG_H +#define __DRIVERS_USB_CHIPIDEA_OTG_H + +u32 hw_read_otgsc(struct ci_hdrc *ci, u32 mask); +void hw_write_otgsc(struct ci_hdrc *ci, u32 mask, u32 data); +int ci_hdrc_otg_init(struct ci_hdrc *ci); +void ci_hdrc_otg_destroy(struct ci_hdrc *ci); +enum ci_role ci_otg_role(struct ci_hdrc *ci); +void ci_handle_vbus_change(struct ci_hdrc *ci); +void ci_handle_id_switch(struct ci_hdrc *ci); +static inline void ci_otg_queue_work(struct ci_hdrc *ci) +{ + disable_irq_nosync(ci->irq); + if (queue_work(ci->wq, &ci->work) == false) + enable_irq(ci->irq); +} + +#endif /* __DRIVERS_USB_CHIPIDEA_OTG_H */ |