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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2017-07-03 16:32:23 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-08-09 16:09:41 +0300 |
| commit | 5db23179998ded72cb8f58a296c0e99716d7df5b (patch) | |
| tree | 0316dabd4c2f07c76806b530c377a1ffbc80a072 /arch/s390 | |
| parent | 307957b643493c1bc038d4e4b717871184f13ddf (diff) | |
| download | linux-5db23179998ded72cb8f58a296c0e99716d7df5b.tar.xz | |
s390/pci: log changes to uid checking
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>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/pci/pci_clp.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index bd534b4d40e3..0ae3936e266f 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -24,6 +24,14 @@ 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) { struct { @@ -319,7 +327,7 @@ static int clp_list_pci(struct clp_req_rsp_list_pci *rrb, void *data, goto out; } - zpci_unique_uid = rrb->response.uid_checking; + update_uid_checking(rrb->response.uid_checking); WARN_ON_ONCE(rrb->response.entry_size != sizeof(struct clp_fh_list_entry)); |