[PATCH] scsi: ibmvfc: Add Kconfig dependency to fix link failure when NVME_FC=m

[Venkat Rao Bagalkote <venkat88@linux.ibm.com>]

Building with CONFIG_SCSI_IBMVFC=y and CONFIG_NVME_FC=m results in a
link failure:

  ibmvfc-nvme.o: undefined reference to `nvme_fc_register_localport'
  ibmvfc-nvme.o: undefined reference to `nvme_fc_register_remoteport'
  ibmvfc-nvme.o: undefined reference to `nvme_fc_unregister_localport'
  ibmvfc-nvme.o: undefined reference to `nvme_fc_unregister_remoteport'
  ibmvfc-core.o: undefined reference to `nvme_fc_rescan_remoteport'

IS_ENABLED() evaluates to 1 for both =y and =m, so the nvme_fc_*
call sites are kept in the object file. When SCSI_IBMVFC=y (built-in)
but NVME_FC=m (loadable module), the linker cannot resolve these
symbols at vmlinux link time.

Add the same "depends on NVME_FC || NVME_FC=n" constraint already
used by SCSI_LPFC to prevent this configuration.

Reported-by: Pavithra <pavrampu@linux.ibm.com>
Closes: https://lore.kernel.org/all/327877a29337aa526cc50ac88fbddb86@linux.ibm.com/
Signed-off-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
---
 drivers/scsi/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 4a2af0f702e1..1eec66195cf4 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
 
-- 
2.45.2