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linux/barebox-wrapper: Silence gcc5 warning 

gcc5 warns about using flags uninitialized in spin_lock_irqsave,
although it could look into the static inline spin_lock_irqsave
implementation and see it's not used at all. An empty define instead
of the static inline wrapper would lead to a "unused variable" warning.
Let's create a macro and fake some usage of the flags variable. This
probably helps until gcc6 is out.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2015-12-10 09:22:49 +01:00
parent ce4dc6df3b
commit f256280006
1 changed files with 2 additions and 2 deletions
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4
include/linux/barebox-wrapper.h
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@ -39,8 +39,8 @@ typedef int spinlock_t;
#define spin_lock_init(...)
#define spin_lock(...)
#define spin_unlock(...)
static inline void spin_lock_irqsave(spinlock_t *lock, unsigned long flags) {}
static inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) {}
#define spin_lock_irqsave(lock, flags) do { flags = 0; } while (0)
#define spin_unlock_irqrestore(lock, flags) do { flags = flags; } while (0)
#define mutex_init(...)
#define mutex_lock(...)