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s390/pci: log changes to uid checking

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Some hypervisors allow to toggle uid checking at runtime. Log
changes to uid checking in s390dbf.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott 2017-07-03 15:32:23 +02:00 committed by Martin Schwidefsky
parent 307957b643
commit 5db2317999
1 changed files with 9 additions and 1 deletions
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10
arch/s390/pci/pci_clp.c
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@ -24,6 +24,14 @@
bool zpci_unique_uid; bool zpci_unique_uid;
static void update_uid_checking(bool new)
{
if (zpci_unique_uid != new)
zpci_dbg(1, "uid checking:%d\n", new);
zpci_unique_uid = new;
}
static inline void zpci_err_clp(unsigned int rsp, int rc) static inline void zpci_err_clp(unsigned int rsp, int rc)
{ {
struct { struct {
@ -319,7 +327,7 @@ static int clp_list_pci(struct clp_req_rsp_list_pci *rrb, void *data,
goto out; goto out;
} }
zpci_unique_uid = rrb->response.uid_checking; update_uid_checking(rrb->response.uid_checking);
WARN_ON_ONCE(rrb->response.entry_size != WARN_ON_ONCE(rrb->response.entry_size !=
sizeof(struct clp_fh_list_entry)); sizeof(struct clp_fh_list_entry));