scsi: target: iscs: Make write_pending_must_be_called a bit field

Subsequent commits add more on/off type of settings to the
target_core_fabric_ops struct so this makes write_pending_must_be_called a
bit field instead of a bool to better organize the settings.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20230928020907.5730-1-michael.christie@oracle.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/target/iscsi/iscsi_target_configfs.c

@@ -1589,5 +1589,5 @@ const struct target_core_fabric_ops iscsi_ops = {
 	.tfc_tpg_nacl_auth_attrs	= lio_target_nacl_auth_attrs,
 	.tfc_tpg_nacl_param_attrs	= lio_target_nacl_param_attrs,
 
-	.write_pending_must_be_called	= true,
+	.write_pending_must_be_called	= 1,
 };

include/target/target_core_fabric.h

@@ -113,11 +113,11 @@ struct target_core_fabric_ops {
 	struct configfs_attribute **tfc_tpg_nacl_param_attrs;
 
 	/*
-	 * Set this member variable to true if the SCSI transport protocol
+	 * Set this member variable if the SCSI transport protocol
 	 * (e.g. iSCSI) requires that the Data-Out buffer is transferred in
 	 * its entirety before a command is aborted.
 	 */
-	bool write_pending_must_be_called;
+	unsigned int write_pending_must_be_called:1;
 };
 
 int target_register_template(const struct target_core_fabric_ops *fo);