diff options
| -rw-r--r-- | arch/powerpc/platforms/pseries/papr_scm.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c index 7dc6a751cb4c..7d6457ab5d34 100644 --- a/arch/powerpc/platforms/pseries/papr_scm.c +++ b/arch/powerpc/platforms/pseries/papr_scm.c @@ -264,6 +264,8 @@ static int papr_scm_probe(struct platform_device *pdev) u32 drc_index, metadata_size; u64 blocks, block_size; struct papr_scm_priv *p; + const char *uuid_str; + u64 uuid[2]; int rc; /* check we have all the required DT properties */ @@ -282,6 +284,11 @@ static int papr_scm_probe(struct platform_device *pdev) return -ENODEV; } + if (of_property_read_string(dn, "ibm,unit-guid", &uuid_str)) { + dev_err(&pdev->dev, "%pOF: missing unit-guid!\n", dn); + return -ENODEV; + } + p = kzalloc(sizeof(*p), GFP_KERNEL); if (!p) return -ENOMEM; @@ -294,6 +301,11 @@ static int papr_scm_probe(struct platform_device *pdev) p->block_size = block_size; p->blocks = blocks; + /* We just need to ensure that set cookies are unique across */ + uuid_parse(uuid_str, (uuid_t *) uuid); + p->nd_set.cookie1 = uuid[0]; + p->nd_set.cookie2 = uuid[1]; + /* might be zero */ p->metadata_size = metadata_size; p->pdev = pdev; |