diff options
| author | Shung-Hsi Yu <shung-hsi.yu@suse.com> | 2020-08-31 17:37:09 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-01 23:13:15 +0300 |
| commit | cbedcb044e9cc4e14bbe6658111224bb923094f4 (patch) | |
| tree | bf943962728645f5b67d178819fb3332e8958811 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 355db39110100b968c8291a1a7d897f92e17a8df (diff) | |
| download | linux-cbedcb044e9cc4e14bbe6658111224bb923094f4.tar.xz | |
net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init()
On machines with much memory (> 2 TByte) and log_mtts_per_seg == 0, a
max_order of 31 will be passed to mlx_buddy_init(), which results in
s = BITS_TO_LONGS(1 << 31) becoming a negative value, leading to
kvmalloc_array() failure when it is converted to size_t.
mlx4_core 0000:b1:00.0: Failed to initialize memory region table, aborting
mlx4_core: probe of 0000:b1:00.0 failed with error -12
Fix this issue by changing the left shifting operand from a signed literal to
an unsigned one.
Fixes: 225c7b1feef1 ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters")
Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions