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pcnet32: Mark PM functions as __maybe_unused

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

../drivers/net/ethernet/amd/pcnet32.c:2928:12: warning:
'pcnet32_pm_resume' defined but not used [-Wunused-function]
 2928 | static int pcnet32_pm_resume(struct device *device_d)
      |            ^~~~~~~~~~~~~~~~~
../drivers/net/ethernet/amd/pcnet32.c:2916:12: warning:
'pcnet32_pm_suspend' defined but not used [-Wunused-function]
 2916 | static int pcnet32_pm_suspend(struct device *device_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: a86688fbef ("pcnet32: Convert to generic power management")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nathan Chancellor 2020-06-30 14:00:34 -07:00 committed by David S. Miller
parent 0adcd2981d
commit 75603a3112
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/amd/pcnet32.c
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@ -2913,7 +2913,7 @@ static void pcnet32_watchdog(struct timer_list *t)
mod_timer(&lp->watchdog_timer, round_jiffies(PCNET32_WATCHDOG_TIMEOUT));
}
static int pcnet32_pm_suspend(struct device *device_d)
static int __maybe_unused pcnet32_pm_suspend(struct device *device_d)
{
struct net_device *dev = dev_get_drvdata(device_d);
@ -2925,7 +2925,7 @@ static int pcnet32_pm_suspend(struct device *device_d)
return 0;
}
static int pcnet32_pm_resume(struct device *device_d)
static int __maybe_unused pcnet32_pm_resume(struct device *device_d)
{
struct net_device *dev = dev_get_drvdata(device_d);