From: Bean Huo <beanhuo@xxxxxxxxxx>
Use the latest GCC will show below array-bounds warning:
drivers/scsi/libsas/sas_expander.c:1697:39: warning: array subscript ‘struct
smp_resp[0]’ is partly outside array bounds of ‘unsigned char[56]’ [-Warray-bounds]
...
drivers/scsi/libsas/sas_expander.c:1781:20: warning: array subscript ‘struct
smp_resp[0]’ is partly outside array bounds of ‘unsigned char[32]’ [-Warray-bounds]
...
rivers/scsi/libsas/sas_expander.c:1786:39: warning: array subscript ‘struct
smp_resp[0]’ is partly outside array bounds of ‘unsigned char[32]’ [-Warray-bounds]
...
drivers/scsi/libsas/sas_expander.c:476:35: warning: array subscript ‘struct
smp_resp[0]’ is partly outside array bounds of ‘unsigned char[32]’ [-Warray-bounds]
...
drivers/scsi/libsas/sas_expander.c:479:38: warning: array subscript ‘struct
smp_resp[0]’ is partly outside array bounds of ‘unsigned char[32]’ [-Warray-bounds]
This patch aims to fix these warnings by directly using struct sizes instead of
macro definitions.
Signed-off-by: Bean Huo <beanhuo@xxxxxxxxxx>
---
drivers/scsi/libsas/sas_expander.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 260e735d06fa..ac6d9be358c5 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -457,7 +457,7 @@ static int sas_ex_general(struct domain_device *dev)
if (!rg_req)
return -ENOMEM;
- rg_resp = alloc_smp_resp(RG_RESP_SIZE);
+ rg_resp = alloc_smp_resp(sizeof(struct smp_resp));
if (!rg_resp) {
kfree(rg_req);
return -ENOMEM;
@@ -1688,7 +1688,7 @@ static int sas_get_phy_change_count(struct domain_device *dev,
int res;
struct smp_resp *disc_resp;
- disc_resp = alloc_smp_resp(DISCOVER_RESP_SIZE);
+ disc_resp = alloc_smp_resp(sizeof(struct smp_resp));
if (!disc_resp)
return -ENOMEM;
@@ -1766,7 +1766,7 @@ static int sas_get_ex_change_count(struct domain_device *dev, int *ecc)
if (!rg_req)
return -ENOMEM;
- rg_resp = alloc_smp_resp(RG_RESP_SIZE);
+ rg_resp = alloc_smp_resp(sizeof(struct smp_resp));
if (!rg_resp) {
kfree(rg_req);
return -ENOMEM;
--
2.34.1
