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net: stmmac: mark PM functions as __maybe_unused 

The newly added suspend/resume functions cause a build warning
when CONFIG_PM is disabled:

drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c:324:12: error: 'stmmac_pci_resume' defined but not used [-Werror=unused-function]
drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c:306:12: error: 'stmmac_pci_suspend' defined but not used [-Werror=unused-function]

Mark them as __maybe_unused so gcc can drop them silently.

Fixes: b7d0f08e91 ("net: stmmac: Fix WoL for PCI-based setups")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnd Bergmann 2018-08-13 23:50:41 +02:00 committed by David S. Miller
parent c2ebc25674
commit 81a8b07996
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
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@ -303,7 +303,7 @@ static void stmmac_pci_remove(struct pci_dev *pdev)
pci_disable_device(pdev);
}
static int stmmac_pci_suspend(struct device *dev)
static int __maybe_unused stmmac_pci_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
int ret;
@ -321,7 +321,7 @@ static int stmmac_pci_suspend(struct device *dev)
return 0;
}
static int stmmac_pci_resume(struct device *dev)
static int __maybe_unused stmmac_pci_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
int ret;