Re: [PATCH] scsi: ufs-qcom: Fix module autoload

From: Subhash Jadavani
Date: Tue Jan 03 2017 - 20:14:47 EST


On 2017-01-02 06:04, Javier Martinez Canillas wrote:
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>
---

drivers/scsi/ufs/ufs-qcom.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index abe617372661..5ff8a6bf6fd3 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1692,6 +1692,7 @@ static const struct of_device_id ufs_qcom_of_match[] = {
{ .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,

Looks good to me.
Reviewed-by: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx>

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