From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 8 Aug 2019 20:01:50 -0700
Subject: scsi: qla2xxx: Suppress a Coveritiy complaint about integer overflow
Patch-mainline: v5.4-rc1
Git-commit: f91ff36a5731ca41f9009a00bf9f9b8e6c623dae
References: bsc#1123034 bsc#1131304 bsc#1127988 bsc#1143706
This patch fixes the following Coverity complaint:
Unintentional integer overflow (OVERFLOW_BEFORE_WIDEN)
overflow_before_widen: Potentially overflowing expression dma_eng_num *
65536U with type unsigned int (32 bits, unsigned) is evaluated using 32-bit
arithmetic, and then used in a context that expects an expression of type
uint64_t (64 bits, unsigned).
Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
drivers/scsi/qla2xxx/qla_nx2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/qla2xxx/qla_nx2.c
+++ b/drivers/scsi/qla2xxx/qla_nx2.c
@@ -2810,7 +2810,7 @@ error:
#define ISP8044_PEX_DMA_ENGINE_INDEX 8
#define ISP8044_PEX_DMA_BASE_ADDRESS 0x77320000
-#define ISP8044_PEX_DMA_NUM_OFFSET 0x10000
+#define ISP8044_PEX_DMA_NUM_OFFSET 0x10000UL
#define ISP8044_PEX_DMA_CMD_ADDR_LOW 0x0
#define ISP8044_PEX_DMA_CMD_ADDR_HIGH 0x04
#define ISP8044_PEX_DMA_CMD_STS_AND_CNTRL 0x08