[PATCH 22/29] ibmvfc: extend ibmvfc_debug visibility to ibmvfc-nvme.h

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

Export ibmvfc_debug so the NVMe support code can use the
existing ibmvfc_dbg logging macro.

The debug control variable is currently file-local to the core driver,
which prevents protocol-specific code in ibmvfc-nvme.c from using the
shared debug infrastructure. Make the variable global within the module
and declare it in ibmvfc-nvme.h.

Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
---
 drivers/scsi/ibmvscsi/ibmvfc-core.c | 3 ++-
 drivers/scsi/ibmvscsi/ibmvfc-nvme.h | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ibmvscsi/ibmvfc-core.c b/drivers/scsi/ibmvscsi/ibmvfc-core.c
index 5f6ee99d0dba..7e6912fba899 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc-core.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc-core.c
@@ -41,7 +41,6 @@ static unsigned int max_requests = IBMVFC_MAX_REQUESTS_DEFAULT;
 static u16 max_sectors = IBMVFC_MAX_SECTORS;
 static u16 scsi_qdepth = IBMVFC_SCSI_QDEPTH;
 static unsigned int disc_threads = IBMVFC_MAX_DISC_THREADS;
-static unsigned int ibmvfc_debug = IBMVFC_DEBUG;
 static unsigned int log_level = IBMVFC_DEFAULT_LOG_LEVEL;
 static unsigned int cls3_error = IBMVFC_CLS3_ERROR;
 static unsigned int mq_enabled = IBMVFC_MQ;
@@ -53,6 +52,8 @@ static unsigned int nr_nvme_channels = IBMVFC_NVME_CHANNELS;
 static unsigned int mig_channels_only = IBMVFC_MIG_NO_SUB_TO_CRQ;
 static unsigned int mig_no_less_channels = IBMVFC_MIG_NO_N_TO_M;
 
+unsigned int ibmvfc_debug = IBMVFC_DEBUG;
+
 static LIST_HEAD(ibmvfc_head);
 static DEFINE_SPINLOCK(ibmvfc_driver_lock);
 static struct scsi_transport_template *ibmvfc_transport_template;
diff --git a/drivers/scsi/ibmvscsi/ibmvfc-nvme.h b/drivers/scsi/ibmvscsi/ibmvfc-nvme.h
index 0465e8719881..3aa285788795 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc-nvme.h
+++ b/drivers/scsi/ibmvscsi/ibmvfc-nvme.h
@@ -22,6 +22,8 @@
 #define IBMVFC_MAX_NVME_QUEUES	16
 #define IBMVFC_NVME_CHANNELS	8
 
+extern unsigned int ibmvfc_debug;
+
 struct ibmvfc_host;
 struct ibmvfc_target;
 
-- 
2.54.0