Re: scsi: ibmvfc: Add Kconfig dependency on NVME_FC to prevent link failure

[Tyrel Datwyler <tyreld@linux.ibm.com>]

On 9/2/26 1:40 AM, Venkat Rao Bagalkote wrote:
> 
> On 02/09/26 1:55 pm, pavrampu wrote:
>> Hi,
>>
>> I am seeing below build failure with latest linux-next repo.
>>
>> Description:
>>
>> Building the kernel with CONFIG_SCSI_IBMVFC=y and CONFIG_NVME_FC=m results in
>> a link failure when building vmlinux:
>>
>> Build failure logs:
>>
>> ld: drivers/scsi/ibmvscsi/ibmvfc-nvme.o: in function
>> `ibmvfc_nvme_register_remoteport':
>> ibmvfc-nvme.c:488: undefined reference to `nvme_fc_register_remoteport'
>> ld: drivers/scsi/ibmvscsi/ibmvfc-nvme.o: in function
>> `ibmvfc_nvme_unregister_remoteport':
>> ibmvfc-nvme.c:515: undefined reference to `nvme_fc_unregister_remoteport'
>> ld: drivers/scsi/ibmvscsi/ibmvfc-nvme.o: in function `ibmvfc_nvme_register':
>> ibmvfc-nvme.c:536: undefined reference to `nvme_fc_register_localport'
>> ld: drivers/scsi/ibmvscsi/ibmvfc-nvme.o: in function `ibmvfc_nvme_unregister':
>> ibmvfc-nvme.c:565: undefined reference to `nvme_fc_unregister_localport'
>> ld: drivers/scsi/ibmvscsi/ibmvfc-nvme.o: in function `ibmvfc_nvme_unregister':
>> ibmvfc-nvme.c:565: undefined reference to `nvme_fc_unregister_localport'
>> ld: drivers/scsi/ibmvscsi/ibmvfc-core.c:6798: undefined reference to
>> `nvme_fc_rescan_remoteport'
> 
> 
> Below simple check in Kconfig fixes the build failure.
> 
> If this is acceptable, then I will send a formal patch.

Yep, need to force ibmvfc to be a module when NVME_FC isn't builtin, or NVME_FC
must be disabled.

-Tyrel
> 
> # git diff
> diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
> index 4a2af0f702e1..6612d5d445e2 100644
> --- a/drivers/scsi/Kconfig
> +++ b/drivers/scsi/Kconfig
> @@ -753,6 +753,7 @@ config SCSI_IBMVFC
>         tristate "IBM Virtual FC support"
>         depends on PPC_PSERIES && SCSI
>         depends on SCSI_FC_ATTRS
> +      depends on NVME_FC || NVME_FC=n
>         help
>           This is the IBM POWER Virtual FC Client
> 
> 
> Regards,
> 
> Venkat.
> 
>>
>> If you happen to fix this, please add below tag.
>>
>> Reported-by: Pavithra <pavrampu@linux.ibm.com>
>>
>> Thanks,
>> Pavithra
>