Shung-Hsi Yu cbedcb044e
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: 225c7b1feeshung-hsi.yu@suse.com >
Signed-off-by: David S. Miller <davem@davemloft.net >
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cbedcb044e