openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

net/mlx4_core: Make explicit conversion to 64bit value 

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: 225c7b1fee ("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>
This commit is contained in:
Leon Romanovsky 2017-08-28 16:38:21 +03:00 committed by David S. Miller
parent c73c8b1e47
commit 187782eb58
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/mellanox/mlx4/fw.c
View File

@ -1534,7 +1534,7 @@ int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) { for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
if (virt != -1) { if (virt != -1) {
pages[nent * 2] = cpu_to_be64(virt); pages[nent * 2] = cpu_to_be64(virt);
virt += 1 << lg; virt += 1ULL << lg;
} }
pages[nent * 2 + 1] = pages[nent * 2 + 1] =