| Message ID | 1412147274-28770-7-git-send-email-gwshan@linux.vnet.ibm.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | c59004cc83c3f8b182c32ca9d366d222a59ab63f |
| Delegated to: | Michael Ellerman |
| Headers | show |
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index c9d274e..e6a718f 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -257,6 +257,13 @@ static void *eeh_dump_pe_log(void *data, void *flag) struct eeh_dev *edev, *tmp; size_t *plen = flag; + /* If the PE's config space is blocked, 0xFF's will be + * returned. It's pointless to collect the log in this + * case. + */ + if (pe->state & EEH_PE_CFG_BLOCKED) + return NULL; + eeh_pe_for_each_dev(pe, edev, tmp) *plen += eeh_dump_dev_log(edev, pci_regs_buf + *plen, EEH_PCI_REGS_LOG_LEN - *plen);
When the PE's config space is marked as blocked, PCI config read requests always return 0xFF's. It's pointless to collect logs in this case. Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> --- arch/powerpc/kernel/eeh.c | 7 +++++++ 1 file changed, 7 insertions(+)