[PATCH] nvme-pci: refresh visible attrs after being checked

From: Eugen Hristev
Date: Tue Sep 03 2024 - 07:49:25 EST


The sysfs attributes are registered early, but the driver does not
know whether they are needed or not at that moment.
For the cmb attributes, commit
e917a849c3fc ("nvme-pci: refresh visible attrs for cmb attributes")
solved this problem by calling `nvme_update_attrs` after mapping the cmb.
However the issue persists for the hmb attributes.
To solve the problem, moved the call to `nvme_update_attrs` after
`nvme_setup_host_mem` is called, the one that sets up the hmb, in probe
and in reset_work functions.

Fixes: e917a849c3fc ("nvme-pci: refresh visible attrs for cmb attributes")
Fixes: 86adbf0cdb9e ("nvme: simplify transport specific device attribute handling")
Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
---
drivers/nvme/host/pci.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index e6267a6aa380..9455c4d53d7d 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1878,8 +1878,6 @@ static void nvme_map_cmb(struct nvme_dev *dev)
if ((dev->cmbsz & (NVME_CMBSZ_WDS | NVME_CMBSZ_RDS)) ==
(NVME_CMBSZ_WDS | NVME_CMBSZ_RDS))
pci_p2pmem_publish(pdev, true);
-
- nvme_update_attrs(dev);
}

static int nvme_set_host_mem(struct nvme_dev *dev, u32 bits)
@@ -2736,6 +2734,8 @@ static void nvme_reset_work(struct work_struct *work)
if (result < 0)
goto out;

+ nvme_update_attrs(dev);
+
result = nvme_setup_io_queues(dev);
if (result)
goto out;
@@ -3046,6 +3046,8 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (result < 0)
goto out_disable;

+ nvme_update_attrs(dev);
+
result = nvme_setup_io_queues(dev);
if (result)
goto out_disable;
--
2.34.1