linux-kernel - [PATCH 2/3] remoteproc: qcom: wcnss: Fix module autoload

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Message-Id: <1476825861-7880-3-git-send-email-javier@osg.samsung.com>
Date:   Tue, 18 Oct 2016 18:24:20 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     linux-kernel@...r.kernel.org
Cc:     Javier Martinez Canillas <javier@....samsung.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        linux-remoteproc@...r.kernel.org
Subject: [PATCH 2/3] remoteproc: qcom: wcnss: 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/remoteproc/qcom_wcnss.ko | grep alias
$

After this patch:

$ modinfo drivers/remoteproc/qcom_wcnss.ko | grep alias
alias:          of:N*T*Cqcom,pronto-v2-pilC*
alias:          of:N*T*Cqcom,pronto-v2-pil
alias:          of:N*T*Cqcom,pronto-v1-pilC*
alias:          of:N*T*Cqcom,pronto-v1-pil
alias:          of:N*T*Cqcom,riva-pilC*
alias:          of:N*T*Cqcom,riva-pil

Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
---

 drivers/remoteproc/qcom_wcnss.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index f5cedeaafba1..e5d9de94c1db 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -609,6 +609,7 @@ static const struct of_device_id wcnss_of_match[] = {
 	{ .compatible = "qcom,pronto-v2-pil", &pronto_v2_data },
 	{ },
 };
+MODULE_DEVICE_TABLE(of, wcnss_of_match);
 
 static struct platform_driver wcnss_driver = {
 	.probe = wcnss_probe,
-- 
2.7.4