Commit ff3a52ab authored by Jakub Kicinski's avatar Jakub Kicinski Committed by Bjorn Helgaas
Browse files

PCI/PTM: Remove error message at boot 

Since 39850ed5 ("PCI/PTM: Save/restore Precision Time Measurement
Capability for suspend/resume"), devices that have PTM capability but
don't enable it see this message on calls to pci_save_state():

  no suspend buffer for PTM

Drop the message, it's perfectly fine not to use a capability.

Fixes: 39850ed5 ("PCI/PTM: Save/restore Precision Time Measurement Capability for suspend/resume")
Link: https://lore.kernel.org/r/20210811185955.3112534-1-kuba@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarDavid E. Box <david.e.box@linux.intel.com>
parent 7eb6ea41

drivers/pci/pcie/ptm.c

+1 −3
Original line number Diff line number Diff line
@@ -60,10 +60,8 @@ void pci_save_ptm_state(struct pci_dev *dev) 
		return;



	save_state = pci_find_saved_ext_cap(dev, PCI_EXT_CAP_ID_PTM);

	if (!save_state) {

		pci_err(dev, "no suspend buffer for PTM\n");

	if (!save_state)

		return;

	}



	cap = (u16 *)&save_state->cap.data[0];

	pci_read_config_word(dev, ptm + PCI_PTM_CTRL, cap);