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* [PATCH] libnvdimm: prevent nvdimm from requesting key when security is disabled
@ 2019-09-19 23:46 Dave Jiang
  2019-09-20 18:48 ` Dan Williams
  2019-09-23  9:30 ` Johannes Thumshirn
  0 siblings, 2 replies; 3+ messages in thread
From: Dave Jiang @ 2019-09-19 23:46 UTC (permalink / raw)
  To: dan.j.williams; +Cc: jthumshirn, peter.stark, linux-nvdimm

Current implementation attempts to request keys from the keyring even when
security is not enabled. Change behavior so when security is disabled it
will skip key request.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
 drivers/nvdimm/security.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/nvdimm/security.c b/drivers/nvdimm/security.c
index 9e45b207ff01..89b85970912d 100644
--- a/drivers/nvdimm/security.c
+++ b/drivers/nvdimm/security.c
@@ -177,6 +177,10 @@ static int __nvdimm_security_unlock(struct nvdimm *nvdimm)
 			|| !nvdimm->sec.flags)
 		return -EIO;
 
+	/* No need to go further if security is disabled */
+	if (test_bit(NVDIMM_SECURITY_DISABLED, &nvdimm->sec.flags))
+		return 0;
+
 	if (test_bit(NDD_SECURITY_OVERWRITE, &nvdimm->flags)) {
 		dev_dbg(dev, "Security operation in progress.\n");
 		return -EBUSY;

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2019-09-19 23:46 [PATCH] libnvdimm: prevent nvdimm from requesting key when security is disabled Dave Jiang
2019-09-20 18:48 ` Dan Williams
2019-09-23  9:30 ` Johannes Thumshirn

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