[PATCH 01/11] scsi: aacraid: Fix undefined behavior due to shift overflowing the constant

[Borislav Petkov]

From: Borislav Petkov <bp@xxxxxxx>

Fix

  drivers/scsi/aacraid/commsup.c: In function ‘aac_handle_sa_aif’:
  drivers/scsi/aacraid/commsup.c:1983:2: error: case label does not reduce to an integer constant
    case SA_AIF_BPCFG_CHANGE:
    ^~~~

See https://lore.kernel.org/r/YkwQ6%2BtIH8GQpuct@xxxxxxx for the gory
details as to why it triggers with older gccs only.

Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: Adaptec OEM Raid Solutions <aacraid@xxxxxxxxxxxxx>
Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxx>
Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Cc: linux-scsi@xxxxxxxxxxxxxxx
---
 drivers/scsi/aacraid/aacraid.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index f849e7c9d428..5e115e8b2ba4 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -121,7 +121,7 @@ enum {
 #define SA_AIF_PDEV_CHANGE		(1<<4)
 #define SA_AIF_LDEV_CHANGE		(1<<5)
 #define SA_AIF_BPSTAT_CHANGE		(1<<30)
-#define SA_AIF_BPCFG_CHANGE		(1<<31)
+#define SA_AIF_BPCFG_CHANGE		(1U<<31)
 
 #define HBA_MAX_SG_EMBEDDED		28
 #define HBA_MAX_SG_SEPARATE		90
-- 
2.35.1