GCC 5 helpfully warns us that the WARN_ON check may be buggy:
drivers/scsi/be2iscsi/be_main.c: In function ‘be_sgl_create_contiguous’:
drivers/scsi/be2iscsi/be_main.c:3187:18: warning: logical not is only
applied to the left hand side of comparison [-Wlogical-not-parentheses]
WARN_ON(!length > 0);
^
Check that length is not zero (and not less than zero, but it's
unsigned, so that will always be satisfied).
Signed-off-by: Joel Stanley <joel@xxxxxxxxx>
---
v2: invert the check to lose the ! as suggested by Johannes
drivers/scsi/be2iscsi/be_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 7a6dbfb..c6110cb 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -3184,7 +3184,7 @@ be_sgl_create_contiguous(void *virtual_address,
{
WARN_ON(!virtual_address);
WARN_ON(!physical_address);
- WARN_ON(!length > 0);
+ WARN_ON(length <= 0);
WARN_ON(!sgl);
sgl->va = virtual_address;
--
2.5.0
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