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e1000e: Mark e1000e_pm_prepare() as __maybe_unused

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The function e1000e_pm_prepare() may have no callers depending
on configuration, so it must be marked __maybe_unused to avoid
harmless warning:

drivers/net/ethernet/intel/e1000e/netdev.c:6926:12:
 warning: 'e1000e_pm_prepare' defined but not used [-Wunused-function]
 6926 | static int e1000e_pm_prepare(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~

Fixes: ccf8b940e5 ("e1000e: Leverage direct_complete to speed up s2ram")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Wei Yongjun 2021-03-17 14:52:34 +00:00 committed by Tony Nguyen
parent 501f23092d
commit f2d75b1785
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/e1000e/netdev.c
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@ -6919,7 +6919,7 @@ static int __e1000_resume(struct pci_dev *pdev)
return 0;
}
static int e1000e_pm_prepare(struct device *dev)
static __maybe_unused int e1000e_pm_prepare(struct device *dev)
{
return pm_runtime_suspended(dev) &&
pm_suspend_via_firmware();