linux-kernel - Re: [PATCH] xen: add missing MODULE

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Date: Tue, 2 Jul 2024 11:20:16 +0200
From: Jürgen Groß <jgross@...e.com>
To: Jeff Johnson <quic_jjohnson@...cinc.com>,
 Stefano Stabellini <sstabellini@...nel.org>,
 Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>
Cc: xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org,
 kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] xen: add missing MODULE_DESCRIPTION() macros

On 26.06.24 18:46, Jeff Johnson wrote:
> On 6/11/2024 4:54 PM, Jeff Johnson wrote:
>> With ARCH=x86, make allmodconfig && make W=1 C=1 reports:
>> WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/xen/xen-pciback/xen-pciback.o
>> WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/xen/xen-evtchn.o
>> WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/xen/xen-privcmd.o
>>
>> Add the missing invocations of the MODULE_DESCRIPTION() macro.
>>
>> Signed-off-by: Jeff Johnson <quic_jjohnson@...cinc.com>
>> ---
>> Corrections to these descriptions are welcomed. I'm not an expert in
>> this code so in most cases I've taken these descriptions directly from
>> code comments, Kconfig descriptions, or git logs.  History has shown
>> that in some cases these are originally wrong due to cut-n-paste
>> errors, and in other cases the drivers have evolved such that the
>> original information is no longer accurate.
>> ---
>>   drivers/xen/evtchn.c               | 1 +
>>   drivers/xen/privcmd-buf.c          | 1 +
>>   drivers/xen/privcmd.c              | 1 +
>>   drivers/xen/xen-pciback/pci_stub.c | 1 +
>>   4 files changed, 4 insertions(+)
>>
>> diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c
>> index f6a2216c2c87..9b7fcc7dbb38 100644
>> --- a/drivers/xen/evtchn.c
>> +++ b/drivers/xen/evtchn.c
>> @@ -729,4 +729,5 @@ static void __exit evtchn_cleanup(void)
>>   module_init(evtchn_init);
>>   module_exit(evtchn_cleanup);
>>   
>> +MODULE_DESCRIPTION("Xen /dev/xen/evtchn device driver");
>>   MODULE_LICENSE("GPL");
>> diff --git a/drivers/xen/privcmd-buf.c b/drivers/xen/privcmd-buf.c
>> index 2fa10ca5be14..0f0dad427d7e 100644
>> --- a/drivers/xen/privcmd-buf.c
>> +++ b/drivers/xen/privcmd-buf.c
>> @@ -19,6 +19,7 @@
>>   
>>   #include "privcmd.h"
>>   
>> +MODULE_DESCRIPTION("Xen Mmap of hypercall buffers");
>>   MODULE_LICENSE("GPL");
>>   
>>   struct privcmd_buf_private {
>> diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
>> index 67dfa4778864..b9b784633c01 100644
>> --- a/drivers/xen/privcmd.c
>> +++ b/drivers/xen/privcmd.c
>> @@ -48,6 +48,7 @@
>>   
>>   #include "privcmd.h"
>>   
>> +MODULE_DESCRIPTION("Xen hypercall passthrough driver");
>>   MODULE_LICENSE("GPL");
>>   
>>   #define PRIV_VMA_LOCKED ((void *)1)
>> diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
>> index e34b623e4b41..4faebbb84999 100644
>> --- a/drivers/xen/xen-pciback/pci_stub.c
>> +++ b/drivers/xen/xen-pciback/pci_stub.c
>> @@ -1708,5 +1708,6 @@ static void __exit xen_pcibk_cleanup(void)
>>   module_init(xen_pcibk_init);
>>   module_exit(xen_pcibk_cleanup);
>>   
>> +MODULE_DESCRIPTION("Xen PCI-device stub driver");
>>   MODULE_LICENSE("Dual BSD/GPL");
>>   MODULE_ALIAS("xen-backend:pci");
>>
>> ---
>> base-commit: 83a7eefedc9b56fe7bfeff13b6c7356688ffa670
>> change-id: 20240611-md-drivers-xen-522fc8e7ef08
>>
> 
> Following up to see if anything else is needed from me. Hoping to see this in
> linux-next so I can remove it from my tracking spreadsheet :)

I've pushed the patch to the xen/tip.git for-next branch.


Juergen