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spi: Fix tegra20 build with CONFIG_PM=n 

[ Upstream commit efafec27c5 ]

Without CONFIG_PM enabled, the SET_RUNTIME_PM_OPS() macro ends up being
empty, and the only use of tegra_slink_runtime_{resume,suspend} goes
away, resulting in

  drivers/spi/spi-tegra20-slink.c:1200:12: error: ‘tegra_slink_runtime_resume’ defined but not used [-Werror=unused-function]
   1200 | static int tegra_slink_runtime_resume(struct device *dev)
        |            ^~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/spi/spi-tegra20-slink.c:1188:12: error: ‘tegra_slink_runtime_suspend’ defined but not used [-Werror=unused-function]
   1188 | static int tegra_slink_runtime_suspend(struct device *dev)
        |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~

mark the functions __maybe_unused to make the build happy.

This hits the alpha allmodconfig build (and others).

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Linus Torvalds 2021-09-18 10:05:06 -07:00 committed by Greg Kroah-Hartman
parent 659739e636
commit c8895ba197
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi-tegra20-slink.c
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@ -1210,7 +1210,7 @@ static int tegra_slink_resume(struct device *dev)
}
#endif
static int tegra_slink_runtime_suspend(struct device *dev)
static int __maybe_unused tegra_slink_runtime_suspend(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct tegra_slink_data *tspi = spi_master_get_devdata(master);
@ -1222,7 +1222,7 @@ static int tegra_slink_runtime_suspend(struct device *dev)
return 0;
}
static int tegra_slink_runtime_resume(struct device *dev)
static int __maybe_unused tegra_slink_runtime_resume(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct tegra_slink_data *tspi = spi_master_get_devdata(master);