Clang warns when one enumerated type is implicitly converted to another.
drivers/scsi/bfa/bfa_fcs_lport.c:379:26: warning: implicit conversion
from enumeration type 'enum bfa_lport_aen_event' to different
enumeration type 'enum bfa_ioc_aen_event' [-Wenum-conversion]
BFA_AEN_CAT_LPORT, event);
^~~~~
The root cause of these warnings is the bfad_im_post_vendor_event
function, which expects a value from enum bfa_ioc_aen_event but there
are multiple instances of values from enums bfa_port_aen_event,
bfa_audit_aen_event, and bfa_lport_aen_event being used in this
function.
Given that this doesn't appear to be a problem since cat helps with
differentiating the events, just change evt's type to int so that no
conversion needs to happen and Clang won't warn.
Link: https://github.com/ClangBuiltLinux/linux/issues/147
Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
---
The alternate way of fixing these warnings is to explicitly cast the
conversion when calling the function but since there are about 8-10 of
these warnings, it seems logical to just change the function definiton
which is cleaner in my opinion.
See commits 3eb95feac113 ("mm/zsmalloc.c: change stat type parameter to
int") and 04fecbf51b3c ("mm: memcontrol: use int for event/state
parameter in several functions") for similar fixes.
drivers/scsi/bfa/bfad_im.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/bfa/bfad_im.h b/drivers/scsi/bfa/bfad_im.h
index e61ed8dad0b4..bd4ac187fd8e 100644
--- a/drivers/scsi/bfa/bfad_im.h
+++ b/drivers/scsi/bfa/bfad_im.h
@@ -143,7 +143,7 @@ struct bfad_im_s {
static inline void bfad_im_post_vendor_event(struct bfa_aen_entry_s *entry,
struct bfad_s *drv, int cnt,
enum bfa_aen_category cat,
- enum bfa_ioc_aen_event evt)
+ int evt)
{
struct timespec64 ts;
--
2.19.0
