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Code Issues Releases Wiki Activity

powerpc/eeh: Cleanup unnecessary eeh_pe_state_mark_with_cfg()

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The function eeh_pe_state_mark_with_cfg() just performs the work of
eeh_pe_state_mark() and then, conditionally, the work of
eeh_pe_state_clear(). However it is only ever called with a constant
state such that the condition is always true, so replace it by direct
calls.

Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Sam Bobroff 2018-09-12 11:23:30 +10:00 committed by Michael Ellerman
parent 54644927a0
commit eed4bdbeec
2 changed files with 4 additions and 24 deletions
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6
arch/powerpc/kernel/eeh.c
View file

@ -830,7 +830,8 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state stat
eeh_pe_state_clear(pe, EEH_PE_ISOLATED);
break;
case pcie_hot_reset:
eeh_pe_state_mark_with_cfg(pe, EEH_PE_ISOLATED);
eeh_pe_state_mark(pe, EEH_PE_ISOLATED);
eeh_pe_state_clear(pe, EEH_PE_CFG_BLOCKED);
eeh_ops->set_option(pe, EEH_OPT_FREEZE_PE);
eeh_pe_dev_traverse(pe, eeh_disable_and_save_dev_state, dev);
if (!(pe->type & EEH_PE_VF))
@ -838,7 +839,8 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state stat
eeh_ops->reset(pe, EEH_RESET_HOT);
break;
case pcie_warm_reset:
eeh_pe_state_mark_with_cfg(pe, EEH_PE_ISOLATED);
eeh_pe_state_mark(pe, EEH_PE_ISOLATED);
eeh_pe_state_clear(pe, EEH_PE_CFG_BLOCKED);
eeh_ops->set_option(pe, EEH_OPT_FREEZE_PE);
eeh_pe_dev_traverse(pe, eeh_disable_and_save_dev_state, dev);
if (!(pe->type & EEH_PE_VF))

22
arch/powerpc/kernel/eeh_pe.c
View file

@ -670,28 +670,6 @@ void eeh_pe_state_clear(struct eeh_pe *pe, int state)
eeh_pe_traverse(pe, __eeh_pe_state_clear, &state);
}
/**
* eeh_pe_state_mark_with_cfg - Mark PE state with unblocked config space
* @pe: PE
* @state: PE state to be set
*
* Set specified flag to PE and its child PEs. The PCI config space
* of some PEs is blocked automatically when EEH_PE_ISOLATED is set,
* which isn't needed in some situations. The function allows to set
* the specified flag to indicated PEs without blocking their PCI
* config space.
*/
void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state)
{
eeh_pe_traverse(pe, __eeh_pe_state_mark, &state);
if (!(state & EEH_PE_ISOLATED))
return;
/* Clear EEH_PE_CFG_BLOCKED, which might be set just now */
state = EEH_PE_CFG_BLOCKED;
eeh_pe_traverse(pe, __eeh_pe_state_clear, &state);
}
/*
* Some PCI bridges (e.g. PLX bridges) have primary/secondary
* buses assigned explicitly by firmware, and we probably have