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authorChristophe Jaillet <christophe.jaillet@wanadoo.fr>2016-08-26 07:49:09 +0300
committerDoug Ledford <dledford@redhat.com>2016-09-02 20:46:32 +0300
commit6aaa382f1267644072f288916476879684502f73 (patch)
treec2f91ad0acf986642086661a44ac03ff8eaee1f9 /drivers/infiniband
parentfffd68734dc685e208e86d8c5f6522cd695a8d60 (diff)
downloadlinux-6aaa382f1267644072f288916476879684502f73.tar.xz
IB/hfi1: Fix the size parameter to find_first_bit
The 2nd parameter of 'find_first_bit' is the number of bits to search. In this case, we are passing 'sizeof(u64)' which is 8. It is likely that the number of bits of 'port_mask' was expected here. Use sizeof() * 8 to get the correct number. It has been spotted by the following coccinelle script: @@ expression ret, x; @@ * ret = \(find_first_bit \| find_first_zero_bit\) (x, sizeof(...)); Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/hfi1/mad.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c
index 9912d2ca3ded..7ffc14f21523 100644
--- a/drivers/infiniband/hw/hfi1/mad.c
+++ b/drivers/infiniband/hw/hfi1/mad.c
@@ -2638,7 +2638,7 @@ static int pma_get_opa_datacounters(struct opa_pma_mad *pmp,
*/
port_mask = be64_to_cpu(req->port_select_mask[3]);
port_num = find_first_bit((unsigned long *)&port_mask,
- sizeof(port_mask));
+ sizeof(port_mask) * 8);
if (port_num != port) {
pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
@@ -2842,7 +2842,7 @@ static int pma_get_opa_porterrors(struct opa_pma_mad *pmp,
*/
port_mask = be64_to_cpu(req->port_select_mask[3]);
port_num = find_first_bit((unsigned long *)&port_mask,
- sizeof(port_mask));
+ sizeof(port_mask) * 8);
if (port_num != port) {
pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
@@ -3015,7 +3015,7 @@ static int pma_get_opa_errorinfo(struct opa_pma_mad *pmp,
*/
port_mask = be64_to_cpu(req->port_select_mask[3]);
port_num = find_first_bit((unsigned long *)&port_mask,
- sizeof(port_mask));
+ sizeof(port_mask) * 8);
if (port_num != port) {
pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
@@ -3252,7 +3252,7 @@ static int pma_set_opa_errorinfo(struct opa_pma_mad *pmp,
*/
port_mask = be64_to_cpu(req->port_select_mask[3]);
port_num = find_first_bit((unsigned long *)&port_mask,
- sizeof(port_mask));
+ sizeof(port_mask) * 8);
if (port_num != port) {
pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;