Files
android_kernel_samsung_sm86…/dp/inc/cdp_txrx_bus.h
Rakesh Pillai 1d4d12e0e9 qcacmn: cdp: Convergence of cdp_bus_ops
Currently the cdp apis are given pdev/vdev/peer
handle as its arguments, which is directly
accessed in those APIs. This can cause a
race-condition in access of the respective
handles, if it has been deleted in parallel.

Hence as a part of cdp convergence, pass only
the pdev/vdev id or peer mac address, which will be
used to get the respective handles, and hence
avoiding the unwanted access of the handles, if
it has been deleted.

Converged bus_ops
- bus_suspend
- bus_resume

CRs-Fixed: 2539826
Change-Id: Id4d6ba16beae89f4052e72024ef8ce891ea33715
2019-11-21 06:12:58 -08:00

73 lines
2.1 KiB
C

/*
* Copyright (c) 2016-2017, 2019 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/**
* @file cdp_txrx_bus.h
* @brief Define the host data path bus related functions
*/
#ifndef _CDP_TXRX_BUS_H_
#define _CDP_TXRX_BUS_H_
/**
* cdp_bus_suspend() - suspend bus
* @soc: data path soc handle
* @pdev_id: id of dp pdev handle
*
* suspend bus
*
* return QDF_STATUS_SUCCESS suspend is not implemented or suspend done
*/
static inline QDF_STATUS cdp_bus_suspend(ol_txrx_soc_handle soc,
uint8_t pdev_id)
{
if (!soc || !soc->ops || !soc->ops->bus_ops) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_FATAL,
"%s invalid instance", __func__);
return QDF_STATUS_E_INVAL;
}
if (soc->ops->bus_ops->bus_suspend)
return soc->ops->bus_ops->bus_suspend(soc, pdev_id);
return QDF_STATUS_E_NOSUPPORT;
}
/**
* cdp_bus_resume() - resume bus
* @soc: data path soc handle
* @pdev_id: id of dp pdev handle
*
* resume bus
*
* return QDF_STATUS_SUCCESS resume is not implemented or suspend done
*/
static inline QDF_STATUS cdp_bus_resume(ol_txrx_soc_handle soc,
uint8_t pdev_id)
{
if (!soc || !soc->ops || !soc->ops->bus_ops) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_FATAL,
"%s invalid instance", __func__);
return QDF_STATUS_E_INVAL;
}
if (soc->ops->bus_ops->bus_resume)
return soc->ops->bus_ops->bus_resume(soc, pdev_id);
return QDF_STATUS_E_NOSUPPORT;
}
#endif /* _CDP_TXRX_BUS_H_ */