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authorArnd Bergmann <arnd@arndb.de>2017-02-14 22:23:07 +0100
committerDoug Ledford <dledford@redhat.com>2017-02-19 09:18:47 -0500
commit64b2ae74e83c0294f66ab8db9c99c274fa1a5f1a (patch)
tree597f3ee26458812f465454eb646f9f3bafabf97a /drivers/infiniband
parent23536dfaa3ef5b4e61272ea65ed6c1b15db022ec (diff)
downloadlinux-64b2ae74e83c0294f66ab8db9c99c274fa1a5f1a.tar.bz2
IB/hfi1: use size_t for passing array length
gcc-7 produces a mysterious warning about the size argument being potentially out of range: drivers/infiniband/hw/hfi1/verbs.c: In function 'init_cntr_names': drivers/infiniband/hw/hfi1/verbs.c:1644:2: error: 'memcpy': specified size between 18446744071562067968 and 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Werror=stringop-overflow=] This seems to refer to a the case where an 64-bit size_t gets truncated into a negative 'int' and subsequently turned into a high 64-bit number again. The fix is clearly to use size_t here, which matches the type that gets used for this value elsewhere. Fixes: b7481944b06e ("IB/hfi1: Show statistics counters under IB stats interface") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/hfi1/verbs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index 72f459e1fdde..5ba4c0dec348 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -1536,7 +1536,7 @@ static int cntr_names_initialized;
* external strings.
*/
static int init_cntr_names(const char *names_in,
- const int names_len,
+ const size_t names_len,
int num_extra_names,
int *num_cntrs,
const char ***cntr_names)