linux-stable/arch/powerpc/include/asm/eeh_event.h
Sam Bobroff 37fd812587 powerpc/eeh: Manage EEH_PE_RECOVERING inside eeh_handle_normal_event()
Currently the EEH_PE_RECOVERING flag for a PE is managed by both the
caller and callee of eeh_handle_normal_event() (among other places not
considered here). This is complicated by the fact that the PE may
or may not have been invalidated by the call.

So move the callee's handling into eeh_handle_normal_event(), which
clarifies it and allows the return type to be changed to void (because
it no longer needs to indicate at the PE has been invalidated).

This should not change behaviour except in eeh_event_handler() where
it was previously possible to cause eeh_pe_state_clear() to be called
on an invalid PE, which is now avoided.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-03-27 23:44:58 +11:00

41 lines
1.4 KiB
C

/*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Copyright (c) 2005 Linas Vepstas <linas@linas.org>
*/
#ifndef ASM_POWERPC_EEH_EVENT_H
#define ASM_POWERPC_EEH_EVENT_H
#ifdef __KERNEL__
/*
* structure holding pci controller data that describes a
* change in the isolation status of a PCI slot. A pointer
* to this struct is passed as the data pointer in a notify
* callback.
*/
struct eeh_event {
struct list_head list; /* to form event queue */
struct eeh_pe *pe; /* EEH PE */
};
int eeh_event_init(void);
int eeh_send_failure_event(struct eeh_pe *pe);
void eeh_remove_event(struct eeh_pe *pe, bool force);
void eeh_handle_normal_event(struct eeh_pe *pe);
void eeh_handle_special_event(void);
#endif /* __KERNEL__ */
#endif /* ASM_POWERPC_EEH_EVENT_H */