patch "tty: serial: msm: Fix module autoload" added to tty-testing

patch "tty: serial: msm: Fix module autoload" added to tty-testing

[gregkh]

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

    tty: serial: msm: Fix module autoload

to my tty git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
in the tty-testing branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will be merged to the tty-next branch sometime soon,
after it passes testing, and the merge window is open.

If you have any questions about this process, please let me know.


>From df51e152cfff2adeb177201699c1624e82a37a15 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier@osg.samsung.com>
Date: Mon, 2 Jan 2017 11:57:20 -0300
Subject: tty: serial: msm: Fix module autoload

If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/tty/serial/msm_serial.ko | grep alias
$

After this patch:

$ modinfo drivers/tty/serial/msm_serial.ko | grep alias
alias:          of:N*T*Cqcom,msm-uartdmC*
alias:          of:N*T*Cqcom,msm-uartdm
alias:          of:N*T*Cqcom,msm-uartC*
alias:          of:N*T*Cqcom,msm-uart

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/msm_serial.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 7312e7e01b7e..6788e7532dff 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -1809,6 +1809,7 @@ static const struct of_device_id msm_match_table[] = {
 	{ .compatible = "qcom,msm-uartdm" },
 	{}
 };
+MODULE_DEVICE_TABLE(of, msm_match_table);
 
 static struct platform_driver msm_platform_driver = {
 	.remove = msm_serial_remove,
-- 
2.11.0