On Wed, Apr 04, 2018 at 12:10:35PM -0300, Desnes A. Nunes do Rosario wrote:
> The disabling informational messages on the PCI subsystem should be deleted
> since they do not represent any real value for the system logs.
>
> These messages are either not presented, or presented for all PCI devices
> (e.g., powerpc now realigns all PCI devices to its page size). Thus, they
> are flooding system logs and can be interpreted as a false positive for
> total PCI failure on the system.
>
> [root@system user]# dmesg | grep -i disabling
> [ 0.692270] pci 0000:00:00.0: Disabling memory decoding and releasing memory resources
> [ 0.692324] pci 0000:00:00.0: disabling bridge mem windows
> [ 0.729134] pci 0001:00:00.0: Disabling memory decoding and releasing memory resources
> [ 0.737352] pci 0001:00:00.0: disabling bridge mem windows
> [ 0.776295] pci 0002:00:00.0: Disabling memory decoding and releasing memory resources
> [ 0.784509] pci 0002:00:00.0: disabling bridge mem windows
> ... and goes on for all PCI devices on the system ...
>
> Fixes: 38274637699 ("powerpc/powernv: Override pcibios_default_alignment() to force PCI devices to be page aligned")
> Signed-off-by: Desnes A. Nunes do Rosario <desnesn@xxxxxxxxxxxxxxxxxx>
Applied to pci/resource for v4.18, thanks!
I should have gotten this in for v4.17, but I didn't; sorry about that.
> ---
> drivers/pci/pci.c | 1 -
> drivers/pci/setup-res.c | 2 --
> 2 files changed, 3 deletions(-)
>
> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
> index 8c71d1a66cdd..1563ce1ee091 100644
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@ -5505,7 +5505,6 @@ void pci_reassigndev_resource_alignment(struct pci_dev *dev)
> return;
> }
>
> - pci_info(dev, "Disabling memory decoding and releasing memory resources\n");
> pci_read_config_word(dev, PCI_COMMAND, &command);
> command &= ~PCI_COMMAND_MEMORY;
> pci_write_config_word(dev, PCI_COMMAND, command);
> diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
> index 369d48d6c6f1..6bd35e8e7cde 100644
> --- a/drivers/pci/setup-res.c
> +++ b/drivers/pci/setup-res.c
> @@ -172,8 +172,6 @@ EXPORT_SYMBOL(pci_claim_resource);
>
> void pci_disable_bridge_window(struct pci_dev *dev)
> {
> - pci_info(dev, "disabling bridge mem windows\n");
> -
> /* MMIO Base/Limit */
> pci_write_config_dword(dev, PCI_MEMORY_BASE, 0x0000fff0);
>
> --
> 2.14.3
>
