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mlx4: Mark PM functions as __maybe_unused 

In certain configurations without power management support, the
following warnings happen:

drivers/net/ethernet/mellanox/mlx4/main.c:4388:12:
 warning: 'mlx4_resume' defined but not used [-Wunused-function]
 4388 | static int mlx4_resume(struct device *dev_d)
      |            ^~~~~~~~~~~
drivers/net/ethernet/mellanox/mlx4/main.c:4373:12: warning:
 'mlx4_suspend' defined but not used [-Wunused-function]
 4373 | static int mlx4_suspend(struct device *dev_d)
      |            ^~~~~~~~~~~~

Mark these functions as __maybe_unused to make it clear to the
compiler that this is going to happen based on the configuration,
which is the standard for these types of functions.

Fixes: 0e3e206a3e ("mlx4: use generic power management")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Yongjun 2020-07-02 17:19:46 +08:00 committed by David S. Miller
parent ffa76e38b7
commit 4e1a691168
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/mellanox/mlx4/main.c
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@ -4370,7 +4370,7 @@ static const struct pci_error_handlers mlx4_err_handler = {
.resume = mlx4_pci_resume,
};
static int mlx4_suspend(struct device *dev_d)
static int __maybe_unused mlx4_suspend(struct device *dev_d)
{
struct pci_dev *pdev = to_pci_dev(dev_d);
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
@ -4385,7 +4385,7 @@ static int mlx4_suspend(struct device *dev_d)
return 0;
}
static int mlx4_resume(struct device *dev_d)
static int __maybe_unused mlx4_resume(struct device *dev_d)
{
struct pci_dev *pdev = to_pci_dev(dev_d);
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);