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

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

[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-next 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 also be merged in the next major kernel release
during the merge window.

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


>From abe81f3b8ed2996e1712d26d38ff6b73f582c616 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