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arm64/arch_timer: Mark errata handlers as __maybe_unused

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In some rare randconfig builds, we end up with two functions being entirely
unused:

drivers/clocksource/arm_arch_timer.c:342:12: error: 'erratum_set_next_event_tval_phys' defined but not used [-Werror=unused-function]
 static int erratum_set_next_event_tval_phys(unsigned long evt,
drivers/clocksource/arm_arch_timer.c:335:12: error: 'erratum_set_next_event_tval_virt' defined but not used [-Werror=unused-function]
 static int erratum_set_next_event_tval_virt(unsigned long evt,

We could add an #ifdef around them, but we would already have to check for
several symbols there and there is a chance this would get more complicated
over time, so marking them as __maybe_unused is the simplest way to avoid the
harmless warnings.

Fixes: 01d3e3ff26 ("arm64: arch_timer: Rework the set_next_event workarounds")
Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Marc Zyngier <[email protected]>
Acked-by: Daniel Lezcano <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Cc: Christoffer Dall <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
This commit is contained in:
Arnd Bergmann 2017-04-19 19:37:09 +02:00 • committed by Thomas Gleixner
commit eb64522100
1 changed files with 2 additions and 2 deletions
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4
drivers/clocksource/arm_arch_timer.c
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@ -324,14 +324,14 @@ static void erratum_set_next_event_tval_generic(const int access, unsigned long
arch_timer_reg_write(access, ARCH_TIMER_REG_CTRL, ctrl, clk);
}
static int erratum_set_next_event_tval_virt(unsigned long evt,
static __maybe_unused int erratum_set_next_event_tval_virt(unsigned long evt,
struct clock_event_device *clk)
{
erratum_set_next_event_tval_generic(ARCH_TIMER_VIRT_ACCESS, evt, clk);
return 0;
}
static int erratum_set_next_event_tval_phys(unsigned long evt,
static __maybe_unused int erratum_set_next_event_tval_phys(unsigned long evt,
struct clock_event_device *clk)
{
erratum_set_next_event_tval_generic(ARCH_TIMER_PHYS_ACCESS, evt, clk);