3.16.51-rc1 review patch. If anyone has any objections, please let me know.
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From: Leon Romanovsky leonro@mellanox.com
commit 187782eb58a89ea030731114c6ae37842a4472fe upstream.
The "lg" variable is declared as int so in all places where this variable is used as a shift operand, the output will be int too.
This produces the following smatch warning: drivers/net/ethernet/mellanox/mlx4/fw.c:1532 mlx4_map_cmd() warn: should '1 << lg' be a 64 bit type?
Simple declaration of "1" to be "1ULL" will fix the issue.
Fixes: 225c7b1feef1 ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters") Signed-off-by: Leon Romanovsky leonro@mellanox.com Signed-off-by: Tariq Toukan tariqt@mellanox.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Ben Hutchings ben@decadent.org.uk --- drivers/net/ethernet/mellanox/mlx4/fw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -1084,7 +1084,7 @@ int mlx4_map_cmd(struct mlx4_dev *dev, u for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) { if (virt != -1) { pages[nent * 2] = cpu_to_be64(virt); - virt += 1 << lg; + virt += 1ULL << lg; }
pages[nent * 2 + 1] =