This is a note to let you know that I've just added the patch titled

serial: 8250_pci: Add Amazon PCI serial device ID

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: serial-8250_pci-add-amazon-pci-serial-device-id.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 3bfd1300abfe3adb18e84a89d97a0e82a22124bb Mon Sep 17 00:00:00 2001

From: Matt Wilson msw@amazon.com Date: Mon, 13 Nov 2017 11:31:31 -0800 Subject: serial: 8250_pci: Add Amazon PCI serial device ID

From: Matt Wilson msw@amazon.com

commit 3bfd1300abfe3adb18e84a89d97a0e82a22124bb upstream.

This device will be used in future Amazon EC2 instances as the primary serial port (i.e., data sent to this port will be available via the GetConsoleOuput [1] EC2 API).

[1] http://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_GetConsoleOutput.h...

Signed-off-by: Matt Wilson msw@amazon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/tty/serial/8250/8250_pci.c | 3 +++ 1 file changed, 3 insertions(+)

--- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -5568,6 +5568,9 @@ static struct pci_device_id serial_pci_t { PCI_DEVICE(0x1601, 0x0800), .driver_data = pbn_b0_4_1250000 }, { PCI_DEVICE(0x1601, 0xa801), .driver_data = pbn_b0_4_1250000 },

+ /* Amazon PCI serial device */ + { PCI_DEVICE(0x1d0f, 0x8250), .driver_data = pbn_b0_1_115200 }, + /* * These entries match devices with class COMMUNICATION_SERIAL, * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL

Patches currently in stable-queue which might be from msw@amazon.com are

queue-4.9/serial-8250_pci-add-amazon-pci-serial-device-id.patch