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net/mlx5: Fix static checker warnings 

For some reason, sparse doesn't like using an expression of type (!x)
with a bitwise | and &.  In order to mitigate that, we use a local variable.

This removes the following sparse complaints on the core driver
(and similar ones on the IB driver too):

drivers/net/ethernet/mellanox/mlx5/core/srq.c:83:9: warning: dubious: !x & y
drivers/net/ethernet/mellanox/mlx5/core/srq.c:96:9: warning: dubious: !x & y
drivers/net/ethernet/mellanox/mlx5/core/port.c:59:9: warning: dubious: !x & y
drivers/net/ethernet/mellanox/mlx5/core/vport.c:561:9: warning: dubious: !x & y

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reported-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Or Gerlitz 2016-12-08 12:58:45 +02:00 committed by Saeed Mahameed
parent bd092ad146
commit a61d5ce9cc
1 changed files with 2 additions and 1 deletions
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3
include/linux/mlx5/device.h
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@ -67,10 +67,11 @@
/* insert a value to a struct */
#define MLX5_SET(typ, p, fld, v) do { \
u32 _v = v; \
BUILD_BUG_ON(__mlx5_st_sz_bits(typ) % 32); \
*((__be32 *)(p) + __mlx5_dw_off(typ, fld)) = \
cpu_to_be32((be32_to_cpu(*((__be32 *)(p) + __mlx5_dw_off(typ, fld))) & \
(~__mlx5_dw_mask(typ, fld))) | (((v) & __mlx5_mask(typ, fld)) \
(~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, fld)) \
<< __mlx5_dw_bit_off(typ, fld))); \
} while (0)