Re: [PATCH v1 1/3] bus: mhi: core: Remove warnings for missing MODULE_LICENSE()

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On 2020-09-18 10:18, Manivannan Sadhasivam wrote:
On Fri, Sep 18, 2020 at 09:49:05AM -0700, bbhatt@xxxxxxxxxxxxxx wrote:
On 2020-09-18 07:27, Jeffrey Hugo wrote:
> On 9/17/2020 4:19 PM, Bhaumik Bhatt wrote:
> > When building MHI as a module, missing MODULE_LICENSE() warnings
> > are seen. Avoid them by adding the license and description
> > information for the files where the warnings are seen.
> >
> > Signed-off-by: Bhaumik Bhatt <bbhatt@xxxxxxxxxxxxxx>
> > ---
> >   drivers/bus/mhi/core/boot.c | 3 +++
> >   drivers/bus/mhi/core/main.c | 3 +++
> >   drivers/bus/mhi/core/pm.c   | 3 +++
> >   3 files changed, 9 insertions(+)
> >
> > diff --git a/drivers/bus/mhi/core/boot.c b/drivers/bus/mhi/core/boot.c
> > index 24422f5..78140cc 100644
> > --- a/drivers/bus/mhi/core/boot.c
> > +++ b/drivers/bus/mhi/core/boot.c
> > @@ -523,3 +523,6 @@ void mhi_fw_load_handler(struct mhi_controller
> > *mhi_cntrl)
> >   error_alloc_fw_table:
> >   	release_firmware(firmware);
> >   }
> > +
> > +MODULE_LICENSE("GPL v2");
> > +MODULE_DESCRIPTION("MHI Host Interface");
> > diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
> > index 2cff5dd..172026f 100644
> > --- a/drivers/bus/mhi/core/main.c
> > +++ b/drivers/bus/mhi/core/main.c
> > @@ -1533,3 +1533,6 @@ int mhi_poll(struct mhi_device *mhi_dev, u32
> > budget)
> >   	return ret;
> >   }
> >   EXPORT_SYMBOL_GPL(mhi_poll);
> > +
> > +MODULE_LICENSE("GPL v2");
> > +MODULE_DESCRIPTION("MHI Host Interface");
> > diff --git a/drivers/bus/mhi/core/pm.c b/drivers/bus/mhi/core/pm.c
> > index ce4d969..72c3dbc 100644
> > --- a/drivers/bus/mhi/core/pm.c
> > +++ b/drivers/bus/mhi/core/pm.c
> > @@ -1150,3 +1150,6 @@ void mhi_device_put(struct mhi_device *mhi_dev)
> >   	read_unlock_bh(&mhi_cntrl->pm_lock);
> >   }
> >   EXPORT_SYMBOL_GPL(mhi_device_put);
> > +
> > +MODULE_LICENSE("GPL v2");
> > +MODULE_DESCRIPTION("MHI Host Interface");
> >
>
> I would expect you only need to add the MODULE_* once per module, in
> which case main.c is probably the only place that needs it.

Hi Jeff,

I thought so too. This is to fix below warnings seen when building MHI as a
MODULE:

WARNING: modpost: missing MODULE_LICENSE() in drivers/bus/mhi/core/main.o WARNING: modpost: missing MODULE_LICENSE() in drivers/bus/mhi/core/pm.o WARNING: modpost: missing MODULE_LICENSE() in drivers/bus/mhi/core/boot.o

We've only had those in init.c so far.


Can you please test below diff to see if it fixes the warning?

diff --git a/drivers/bus/mhi/core/Makefile b/drivers/bus/mhi/core/Makefile
index 66e2700c9032..bc1469778cf8 100644
--- a/drivers/bus/mhi/core/Makefile
+++ b/drivers/bus/mhi/core/Makefile
@@ -1,3 +1,3 @@
-obj-$(CONFIG_MHI_BUS) := mhi.o
+obj-$(CONFIG_MHI_BUS) += mhi.o

 mhi-y := init.o main.o pm.o boot.o

Thanks,
Mani

Thanks,
Bhaumik

'The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
Forum,\na Linux Foundation Collaborative Project'
Hi Mani,

Yes I was just about to reply. I realized it was due to the Makefile change. I have fixed and
tested it. The warnings are gone now. I will remove the patch.

Thanks,
Bhaumik

'The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
Forum,\na Linux Foundation Collaborative Project'



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