volatile function

[kevin diggs <diggskevin38@xxxxxxxxx>]

Hi,

I may be wearing out my welcome, but:

I tried to use (in a header file):

/**
 * get_PLL: - return current value of PLL register (HID1)
 *
 * This returns the current value of the PLL configuration register (HID1).
 */
static inline volatile unsigned int get_PLL(void)
{
unsigned int ret;

        __asm__ __volatile__ ("mfspr %0,%1":
                "=r"(ret):
                "i"(SPRN_HID1)
        );

        return ret;
}

to make sure that this function did not get moved or optimized away.
4.1.2 generated a warning (Linux kernel compile:  warning -> error).

cc1: warnings being treated as errors
In file included from arch/powerpc/kernel/cpu/cpufreq/cf750gx.c:37:
/mnt/mnt3/linux-2.6.36/arch/powerpc/include/asm/pll.h:84: warning:
type qualifiers ignored on function return type

Thanks!

kevin