2019-10-23 03:40:15

by Peng Ma

[permalink] [raw]
Subject: [PATCH] dmaengine: fsl-dpaa2-qdma: Fixed build error when enable dpaa2 qdma module driver

Fixed the following error:
WARNING: modpost: missing MODULE_LICENSE() in drivers/dma/fsl-dpaa2-qdma/dpdmai.o
see include/linux/module.h for more information
GZIP arch/arm64/boot/Image.gz
ERROR: "dpdmai_enable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_set_rx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_get_tx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_get_rx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_get_attributes" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_open" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_close" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_disable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_reset" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
WARNING: "HYPERVISOR_platform_op" [vmlinux] is a static EXPORT_SYMBOL_GPL
make[2]: *** [__modpost] Error 1
make[1]: *** [modules] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [sub-make] Error 2

Signed-off-by: Peng Ma <[email protected]>
Reported-by: Anders Roxell <[email protected]>
---
drivers/dma/fsl-dpaa2-qdma/dpdmai.c | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/drivers/dma/fsl-dpaa2-qdma/dpdmai.c b/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
index fbc2b2f..f8a1f66 100644
--- a/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
+++ b/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
// Copyright 2019 NXP

+#include <linux/module.h>
#include <linux/types.h>
#include <linux/io.h>
#include <linux/fsl/mc.h>
@@ -90,6 +91,7 @@ int dpdmai_open(struct fsl_mc_io *mc_io, u32 cmd_flags,

return 0;
}
+EXPORT_SYMBOL_GPL(dpdmai_open);

/**
* dpdmai_close() - Close the control session of the object
@@ -113,6 +115,7 @@ int dpdmai_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
+EXPORT_SYMBOL_GPL(dpdmai_close);

/**
* dpdmai_create() - Create the DPDMAI object
@@ -177,6 +180,7 @@ int dpdmai_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
+EXPORT_SYMBOL_GPL(dpdmai_enable);

/**
* dpdmai_disable() - Disable the DPDMAI, stop sending and receiving frames.
@@ -197,6 +201,7 @@ int dpdmai_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
+EXPORT_SYMBOL_GPL(dpdmai_disable);

/**
* dpdmai_reset() - Reset the DPDMAI, returns the object to initial state.
@@ -217,6 +222,7 @@ int dpdmai_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
+EXPORT_SYMBOL_GPL(dpdmai_reset);

/**
* dpdmai_get_attributes() - Retrieve DPDMAI attributes.
@@ -252,6 +258,7 @@ int dpdmai_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags,

return 0;
}
+EXPORT_SYMBOL_GPL(dpdmai_get_attributes);

/**
* dpdmai_set_rx_queue() - Set Rx queue configuration
@@ -285,6 +292,7 @@ int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
+EXPORT_SYMBOL_GPL(dpdmai_set_rx_queue);

/**
* dpdmai_get_rx_queue() - Retrieve Rx queue attributes.
@@ -325,6 +333,7 @@ int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,

return 0;
}
+EXPORT_SYMBOL_GPL(dpdmai_get_rx_queue);

/**
* dpdmai_get_tx_queue() - Retrieve Tx queue attributes.
@@ -364,3 +373,6 @@ int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,

return 0;
}
+EXPORT_SYMBOL_GPL(dpdmai_get_tx_queue);
+
+MODULE_LICENSE("GPL v2");
--
2.9.5


2019-10-23 05:34:19

by Vinod Koul

[permalink] [raw]
Subject: Re: [PATCH] dmaengine: fsl-dpaa2-qdma: Fixed build error when enable dpaa2 qdma module driver

Hi Peng,

On 23-10-19, 10:19, Peng Ma wrote:

A patch title should detail the change it is doing so a better patch
title would be: "dmaengine: fsl-dpaa2-qdma: export the symbols"

> Fixed the following error:
> WARNING: modpost: missing MODULE_LICENSE() in drivers/dma/fsl-dpaa2-qdma/dpdmai.o
> see include/linux/module.h for more information
> GZIP arch/arm64/boot/Image.gz
> ERROR: "dpdmai_enable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
> ERROR: "dpdmai_set_rx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
> ERROR: "dpdmai_get_tx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
> ERROR: "dpdmai_get_rx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
> ERROR: "dpdmai_get_attributes" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
> ERROR: "dpdmai_open" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
> ERROR: "dpdmai_close" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
> ERROR: "dpdmai_disable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
> ERROR: "dpdmai_reset" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
> WARNING: "HYPERVISOR_platform_op" [vmlinux] is a static EXPORT_SYMBOL_GPL
> make[2]: *** [__modpost] Error 1
> make[1]: *** [modules] Error 2
> make[1]: *** Waiting for unfinished jobs....
> make: *** [sub-make] Error 2

And here in the log, you should say the symbols were not exported
leading to error <give error log>

So export it

>
> Signed-off-by: Peng Ma <[email protected]>
> Reported-by: Anders Roxell <[email protected]>
> ---
> drivers/dma/fsl-dpaa2-qdma/dpdmai.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/drivers/dma/fsl-dpaa2-qdma/dpdmai.c b/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
> index fbc2b2f..f8a1f66 100644
> --- a/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
> +++ b/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
> @@ -1,6 +1,7 @@
> // SPDX-License-Identifier: GPL-2.0
> // Copyright 2019 NXP
>
> +#include <linux/module.h>
> #include <linux/types.h>
> #include <linux/io.h>
> #include <linux/fsl/mc.h>
> @@ -90,6 +91,7 @@ int dpdmai_open(struct fsl_mc_io *mc_io, u32 cmd_flags,
>
> return 0;
> }
> +EXPORT_SYMBOL_GPL(dpdmai_open);
>
> /**
> * dpdmai_close() - Close the control session of the object
> @@ -113,6 +115,7 @@ int dpdmai_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
> /* send command to mc*/
> return mc_send_command(mc_io, &cmd);
> }
> +EXPORT_SYMBOL_GPL(dpdmai_close);
>
> /**
> * dpdmai_create() - Create the DPDMAI object
> @@ -177,6 +180,7 @@ int dpdmai_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
> /* send command to mc*/
> return mc_send_command(mc_io, &cmd);
> }
> +EXPORT_SYMBOL_GPL(dpdmai_enable);
>
> /**
> * dpdmai_disable() - Disable the DPDMAI, stop sending and receiving frames.
> @@ -197,6 +201,7 @@ int dpdmai_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
> /* send command to mc*/
> return mc_send_command(mc_io, &cmd);
> }
> +EXPORT_SYMBOL_GPL(dpdmai_disable);
>
> /**
> * dpdmai_reset() - Reset the DPDMAI, returns the object to initial state.
> @@ -217,6 +222,7 @@ int dpdmai_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
> /* send command to mc*/
> return mc_send_command(mc_io, &cmd);
> }
> +EXPORT_SYMBOL_GPL(dpdmai_reset);
>
> /**
> * dpdmai_get_attributes() - Retrieve DPDMAI attributes.
> @@ -252,6 +258,7 @@ int dpdmai_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags,
>
> return 0;
> }
> +EXPORT_SYMBOL_GPL(dpdmai_get_attributes);
>
> /**
> * dpdmai_set_rx_queue() - Set Rx queue configuration
> @@ -285,6 +292,7 @@ int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
> /* send command to mc*/
> return mc_send_command(mc_io, &cmd);
> }
> +EXPORT_SYMBOL_GPL(dpdmai_set_rx_queue);
>
> /**
> * dpdmai_get_rx_queue() - Retrieve Rx queue attributes.
> @@ -325,6 +333,7 @@ int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
>
> return 0;
> }
> +EXPORT_SYMBOL_GPL(dpdmai_get_rx_queue);
>
> /**
> * dpdmai_get_tx_queue() - Retrieve Tx queue attributes.
> @@ -364,3 +373,6 @@ int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
>
> return 0;
> }
> +EXPORT_SYMBOL_GPL(dpdmai_get_tx_queue);
> +
> +MODULE_LICENSE("GPL v2");
> --
> 2.9.5

--
~Vinod