scsi: raid_attrs: fix unused variable warning

I ran into a new warning on randconfig kernels:

drivers/scsi/raid_class.c: In function 'raid_match':
drivers/scsi/raid_class.c:64:24: error: unused variable 'i' [-Werror=unused-variable]

This looks like a very old problem that for some reason was very hard to
run into, but it is very easy to fix, by replacing the incorrect #ifdef
with a simpler IS_ENABLED() check.

Fixes: fac829fdcaf4 ("[SCSI] raid_attrs: fix dependency problems")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/raid_class.c b/drivers/scsi/raid_class.c
index ea88906..5c3d6e1 100644 (file)
--- a/drivers/scsi/raid_class.c
+++ b/drivers/scsi/raid_class.c
@@ -63,8 +63,7 @@ static int raid_match(struct attribute_container *cont, struct device *dev)
         * emulated RAID devices, so start with SCSI */
        struct raid_internal *i = ac_to_raid_internal(cont);
 
-#if defined(CONFIG_SCSI) || defined(CONFIG_SCSI_MODULE)
-       if (scsi_is_sdev_device(dev)) {
+       if (IS_ENABLED(CONFIG_SCSI) && scsi_is_sdev_device(dev)) {
                struct scsi_device *sdev = to_scsi_device(dev);
 
                if (i->f->cookie != sdev->host->hostt)
@@ -72,7 +71,6 @@ static int raid_match(struct attribute_container *cont, struct device *dev)
 
                return i->f->is_raid(dev);
        }
-#endif
        /* FIXME: look at other subsystems too */
        return 0;
 }