scsi: fdomain: Mark 'fdomain_pm_ops' as __maybe_unused
Not all source files which include 'fdomain.h' make use of 'fdomain_pm_ops'
leaving them defined but unused. Mark it as __maybe_unused to tell the
compiler this is not only acceptable, but expected.
Fixes the following W=1 kernel build warning(s):
In file included from drivers/scsi/pcmcia/fdomain_cs.c:16:
drivers/scsi/fdomain.h:106:32: warning: ‘fdomain_pm_ops’ defined but not used [-Wunused-const-variable=]
106 | static const struct dev_pm_ops fdomain_pm_ops;
| ^~~~~~~~~~~~~~
Link: https://lore.kernel.org/r/20200707140055.2956235-4-lee.jones@linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/fdomain.h b/drivers/scsi/fdomain.h
index 6f63fc6..93afcee 100644
--- a/drivers/scsi/fdomain.h
+++ b/drivers/scsi/fdomain.h
@@ -103,7 +103,7 @@ enum {
#define REG_FIFO_COUNT 14 /* R: FIFO Data Count */
#ifdef CONFIG_PM_SLEEP
-static const struct dev_pm_ops fdomain_pm_ops;
+static const struct dev_pm_ops __maybe_unused fdomain_pm_ops;
#define FDOMAIN_PM_OPS (&fdomain_pm_ops)
#else
#define FDOMAIN_PM_OPS NULL