On 11/15/2013 03:57 AM, Graeme Gregory wrote:

Remove the global lock handling as this is not needed for the reduced hardware platform that arm/arm64 is currently defined as.

Signed-off-by: Graeme Gregory graeme.gregory@linaro.org

drivers/acpi/plat/arm/boot.c | 24 ------------------------ 1 file changed, 24 deletions(-)

diff --git a/drivers/acpi/plat/arm/boot.c b/drivers/acpi/plat/arm/boot.c index 1a6d225..3bfe86e 100644 --- a/drivers/acpi/plat/arm/boot.c +++ b/drivers/acpi/plat/arm/boot.c @@ -785,27 +785,3 @@ static int __init parse_acpi(char *arg) return 0; } early_param("acpi", parse_acpi);

-#if (!ACPI_REDUCED_HARDWARE) -int __acpi_acquire_global_lock(unsigned int *lock) -{

• unsigned int old, new, val;
• do {

• old = *lock;
  

• new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
  

• val = cmpxchg(lock, old, new);
  

• } while (unlikely (val != old));
• return (new < 3) ? -1 : 0;

-}

-int __acpi_release_global_lock(unsigned int *lock) -{

• unsigned int old, new, val;
• do {

• old = *lock;
  

• new = old & ~0x3;
  

• val = cmpxchg(lock, old, new);
  

• } while (unlikely (val != old));
• return old & 0x1;

-} -#endif

Just about identical to the one in the reduced hw patches :).

Acked-by: Al Stone al.stone@linaro.org