[PATCH 4.4 26/59] scsi: ufs-qcom: Fix module autoload

From: Greg Kroah-Hartman
Date: Sun Nov 19 2017 - 09:34:10 EST

4.4-stable review patch. If anyone has any objections, please let me know.


From: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>

[ Upstream commit ab3dabb3e8cf077850f20610f73a0def1fed10cb ]

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/scsi/ufs/ufs-qcom.ko | grep alias

After this patch:

$ modinfo drivers/scsi/ufs/ufs-qcom.ko | grep alias
alias: of:N*T*Cqcom,ufshcC*
alias: of:N*T*Cqcom,ufshc

Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
Reviewed-by: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
drivers/scsi/ufs/ufs-qcom.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1552,6 +1552,7 @@ static const struct of_device_id ufs_qco
{ .compatible = "qcom,ufshc"},
+MODULE_DEVICE_TABLE(of, ufs_qcom_of_match);

static const struct dev_pm_ops ufs_qcom_pm_ops = {
.suspend = ufshcd_pltfrm_suspend,