while looking for the reason of a build failure of the ALSA libraries on
ARM [1] I discovered the following strange thing:
On some architectures a function is inside an "#ifdef __KERNEL__" in the
header file and on others not. Is there a reason for this or is this
inconsistency simply a bug?
In this case the following functions are affected (in 2.4.5):
atomic_read, atomic_inc and atomic_dec in include/asm-*/atomic.h
"#ifdef __KERNEL__" only on arm, mips, mips64 and sparc (but not on
sparc64)
rmb and wmb in include/asm-*/system.h
"#ifdef __KERNEL__" only on arm and sparc (but not on sparc64)
not defined on parisc although used to define smp_rmb on SMP systems:
<-- snip -->
#ifdef CONFIG_SMP
#define smp_mb() mb()
#define smp_rmb() rmb()
#define smp_wmb() wmb()
#else
<-- snip -->
cu
Adrian
[1] http://bugs.debian.org/97988
--
A "No" uttered from deepest conviction is better and greater than a
"Yes" merely uttered to please, or what is worse, to avoid trouble.
-- Mahatma Ghandi
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