Herve Codina [off-list ref] writes:

Hi Michael,

On Thu, 14 Mar 2024 10:05:37 +1100
Michael Ellerman [off-list ref] wrote:

quoted

Hi Herve,

Herve Codina [off-list ref] writes:

..

quoted

This breaks when building as a module (eg. ppc32_allmodconfig):

  In file included from ../include/linux/device/driver.h:21,
                   from ../include/linux/device.h:32,
                   from ../include/linux/dma-mapping.h:8,
                   from ../drivers/net/wan/fsl_qmc_hdlc.c:13:
  ../drivers/net/wan/fsl_qmc_hdlc.c:405:25: error: ‘qmc_hdlc_driver’ undeclared here (not in a function); did you mean ‘qmc_hdlc_probe’?
    405 | MODULE_DEVICE_TABLE(of, qmc_hdlc_driver);
        |                         ^~~~~~~~~~~~~~~


IIUIC it should be pointing to the table, not the driver, so:

diff --git a/drivers/net/wan/fsl_qmc_hdlc.c b/drivers/net/wan/fsl_qmc_hdlc.c
index 5fd7ed325f5b..705c3681fb92 100644
--- a/drivers/net/wan/fsl_qmc_hdlc.c
+++ b/drivers/net/wan/fsl_qmc_hdlc.c

@@ -402,7 +402,7 @@ static const struct of_device_id qmc_hdlc_id_table[] = {
        { .compatible = "fsl,qmc-hdlc" },
        {} /* sentinel */
 };
-MODULE_DEVICE_TABLE(of, qmc_hdlc_driver);
+MODULE_DEVICE_TABLE(of, qmc_hdlc_id_table);

 static struct platform_driver qmc_hdlc_driver = {
        .driver = {

Which then builds correctly.

My bad, I missed that one.
I fully agree with your modification.

Do you want me to make a patch (copy/paste of your proposed modification)
or do you plan to send the patch on your side ?

Yes if you can please turn it into a proper patch and submit it.

No need to add my SoB, it's trivial.

cheers