hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

powerpc/powernv: Simplify pnv_eeh_set_option() 

This simplifies pnv_eeh_set_option() to avoid unnecessary nested
if statements, to improve readability. No functional changes.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Gavin Shan 2015-10-08 14:58:59 +11:00 committed by Michael Ellerman
parent 4d6186ca6f
commit f9433718d6
1 changed files with 25 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
arch/powerpc/platforms/powernv/eeh-powernv.c
View File

@ -471,7 +471,7 @@ static int pnv_eeh_set_option(struct eeh_pe *pe, int option)
struct pci_controller *hose = pe->phb;
struct pnv_phb *phb = hose->private_data;
bool freeze_pe = false;
int opt, ret = 0;
int opt;
s64 rc;
switch (option) {
@ -494,38 +494,37 @@ static int pnv_eeh_set_option(struct eeh_pe *pe, int option)
return -EINVAL;
}
/* If PHB supports compound PE, to handle it */
/* Freeze master and slave PEs if PHB supports compound PEs */
if (freeze_pe) {
if (phb->freeze_pe) {
phb->freeze_pe(phb, pe->addr);
} else {
rc = opal_pci_eeh_freeze_set(phb->opal_id,
pe->addr, opt);
if (rc != OPAL_SUCCESS) {
pr_warn("%s: Failure %lld freezing "
"PHB#%x-PE#%x\n",
__func__, rc,
phb->hose->global_number, pe->addr);
ret = -EIO;
}
return 0;
}
} else {
if (phb->unfreeze_pe) {
ret = phb->unfreeze_pe(phb, pe->addr, opt);
} else {
rc = opal_pci_eeh_freeze_clear(phb->opal_id,
pe->addr, opt);
if (rc != OPAL_SUCCESS) {
pr_warn("%s: Failure %lld enable %d "
"for PHB#%x-PE#%x\n",
__func__, rc, option,
phb->hose->global_number, pe->addr);
ret = -EIO;
}
rc = opal_pci_eeh_freeze_set(phb->opal_id, pe->addr, opt);
if (rc != OPAL_SUCCESS) {
pr_warn("%s: Failure %lld freezing PHB#%x-PE#%x\n",
__func__, rc, phb->hose->global_number,
pe->addr);
return -EIO;
}
return 0;
}
return ret;
/* Unfreeze master and slave PEs if PHB supports */
if (phb->unfreeze_pe)
return phb->unfreeze_pe(phb, pe->addr, opt);
rc = opal_pci_eeh_freeze_clear(phb->opal_id, pe->addr, opt);
if (rc != OPAL_SUCCESS) {
pr_warn("%s: Failure %lld enable %d for PHB#%x-PE#%x\n",
__func__, rc, option, phb->hose->global_number,
pe->addr);
return -EIO;
}
return 0;
}
/**