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| author | Arnd Bergmann <arnd@arndb.de> | 2017-02-14 22:23:07 +0100 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-02-19 09:18:47 -0500 |
| commit | 64b2ae74e83c0294f66ab8db9c99c274fa1a5f1a (patch) | |
| tree | 597f3ee26458812f465454eb646f9f3bafabf97a /drivers/infiniband/hw/hfi1/verbs.c | |
| parent | 23536dfaa3ef5b4e61272ea65ed6c1b15db022ec (diff) | |
| download | blackbird-op-linux-64b2ae74e83c0294f66ab8db9c99c274fa1a5f1a.tar.gz blackbird-op-linux-64b2ae74e83c0294f66ab8db9c99c274fa1a5f1a.zip | |
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/hw/hfi1/verbs.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/verbs.c | 2 |
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) |
