From: Jakub Kicinski Date: Wed, 11 Aug 2021 18:59:55 +0000 (-0700) Subject: PCI/PTM: Remove error message at boot X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ff3a52ab9cab01a53b168dc667fe789f56b90aa9;p=linux.git PCI/PTM: Remove error message at boot Since 39850ed51062 ("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: 39850ed51062 ("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: Jakub Kicinski Signed-off-by: Bjorn Helgaas Acked-by: David E. Box --- diff --git a/drivers/pci/pcie/ptm.c b/drivers/pci/pcie/ptm.c index 95d4eef2c9e8..4810faa67f52 100644 --- a/drivers/pci/pcie/ptm.c +++ b/drivers/pci/pcie/ptm.c @@ -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);