mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-13 11:06:49 +07:00
d0679cfaf5
When CONFIG_PCC is disabled, pcc_mbox_request_channel() needs to return ERR_PTR(-ENODEV), not a NULL pointer, as the callers of this function use IS_ERR() to check for error code. Signed-off-by: Duc Dang <dhdang@apm.com> Signed-off-by: Hoan Tran <hotran@apm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
30 lines
786 B
C
30 lines
786 B
C
/*
|
|
* PCC (Platform Communications Channel) methods
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; version 2
|
|
* of the License.
|
|
*/
|
|
|
|
#ifndef _PCC_H
|
|
#define _PCC_H
|
|
|
|
#include <linux/mailbox_controller.h>
|
|
#include <linux/mailbox_client.h>
|
|
|
|
#ifdef CONFIG_PCC
|
|
extern struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
|
|
int subspace_id);
|
|
extern void pcc_mbox_free_channel(struct mbox_chan *chan);
|
|
#else
|
|
static inline struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
|
|
int subspace_id)
|
|
{
|
|
return ERR_PTR(-ENODEV);
|
|
}
|
|
static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { }
|
|
#endif
|
|
|
|
#endif /* _PCC_H */
|