b9264e89c6
Compiler throws no previous prototype build error for cpuhp on UP system. Fix is to add static inline for UP build. Change-Id: Ib867a19ac526b44766a8cbb1838e7e5b2b18b4b1 CRs-Fixed: 2328927
107 行
3.0 KiB
C
107 行
3.0 KiB
C
/*
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* Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/**
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* DOC: qdf_cpuhp (CPU hotplug)
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* QCA driver framework (QDF) CPU hotplug APIs
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*/
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#ifndef __QDF_CPUHP_H
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#define __QDF_CPUHP_H
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#include "qdf_status.h"
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#include "qdf_types.h"
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/**
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* struct qdf_cpuhp_handler - an opaque hotplug event registration handle
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*/
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struct qdf_cpuhp_handler;
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typedef void (*qdf_cpuhp_callback)(void *context, uint32_t cpu);
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#ifdef QCA_CONFIG_SMP
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/**
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* qdf_cpuhp_init() - Initialize the CPU hotplug event infrastructure
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*
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* To be called once, globally.
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*
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* Return: None
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*/
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QDF_STATUS qdf_cpuhp_init(void);
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/**
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* qdf_cpuhp_deinit() - De-initialize the CPU hotplug event infrastructure
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*
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* To be called once, globally.
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*
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* Return: None
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*/
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QDF_STATUS qdf_cpuhp_deinit(void);
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/**
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* qdf_cpuhp_register() - Register for CPU up/down event notifications
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* @handler: a double pointer to the event registration handle to allocate
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* @context: an opaque context to pass back to event listeners
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* @up_callback: the function pointer to invoke for CPU up events
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* @down_callback: the function pointer to invoke for CPU down events
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*
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* "Up" happens just after the CPU is up. Inversely, "down" happens just before
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* the CPU goes down.
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*
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* @handler will point to a valid memory address on success, or NULL on failure.
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*
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* Return: QDF_STATUS
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*/
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QDF_STATUS qdf_cpuhp_register(struct qdf_cpuhp_handler **handler,
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void *context,
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qdf_cpuhp_callback up_callback,
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qdf_cpuhp_callback down_callback);
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/**
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* qdf_cpuhp_unregister() - Un-register for CPU up/down event notifications
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* @handler: a double pointer to the event registration handle to de-allocate
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*
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* @handler point to NULL upon completion
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*
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* Return: None
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*/
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void qdf_cpuhp_unregister(struct qdf_cpuhp_handler **handler);
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#else
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static inline QDF_STATUS qdf_cpuhp_init(void)
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{
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return QDF_STATUS_SUCCESS;
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}
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static inline QDF_STATUS qdf_cpuhp_deinit(void)
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{
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return QDF_STATUS_SUCCESS;
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}
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static inline QDF_STATUS qdf_cpuhp_register(struct qdf_cpuhp_handler **handler,
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void *context,
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qdf_cpuhp_callback up_callback,
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qdf_cpuhp_callback down_callback)
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{
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return QDF_STATUS_SUCCESS;
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}
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static inline void qdf_cpuhp_unregister(struct qdf_cpuhp_handler **handler) {}
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#endif /* QCA_CONFIG_SMP */
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#endif /* __QDF_CPUHP_H */
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