net/mlx4_core: Avoid repeated calls to pci enable/disable
authorDaniel Jurgens <danielj@mellanox.com>
Wed, 20 Apr 2016 13:01:16 +0000 (16:01 +0300)
committerDavid S. Miller <davem@davemloft.net>
Thu, 21 Apr 2016 19:02:40 +0000 (15:02 -0400)
commit4bfd2e6e53435a214888fd35e230157a38ffc6a0
tree83290b8a28423b8f84d033d0749a7a58b773808c
parentc12833acff62cff83a8b728253e7ebbc1264d75e
net/mlx4_core: Avoid repeated calls to pci enable/disable

Maintain the PCI status and provide wrappers for enabling and disabling
the PCI device.  Performing the actions more than once without doing
its opposite results in warning logs.

This occurred when EEH hotplugged the device causing a warning for
disabling an already disabled device.

Fixes: 2ba5fbd62b25 ('net/mlx4_core: Handle AER flow properly')
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mellanox/mlx4/main.c
include/linux/mlx4/device.h