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| author | Jakub Kicinski <kuba@kernel.org> | 2021-08-11 11:59:55 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-22 12:39:29 +0200 |
| commit | 638fb35ca3e4a8dd89e2259ac145b2d6c00082f7 (patch) | |
| tree | ae64880d9afbc95148790c9133304b45f56cf403 | |
| parent | b3c9eff1a853f5de286cff4024f9fc3604ff0ba6 (diff) | |
| download | linux-638fb35ca3e4a8dd89e2259ac145b2d6c00082f7.tar.gz linux-638fb35ca3e4a8dd89e2259ac145b2d6c00082f7.tar.bz2 linux-638fb35ca3e4a8dd89e2259ac145b2d6c00082f7.zip | |
PCI/PTM: Remove error message at boot
[ Upstream commit ff3a52ab9cab01a53b168dc667fe789f56b90aa9 ]
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 <kuba@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/pci/pcie/ptm.c | 4 |
1 files changed, 1 insertions, 3 deletions
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); |