/home/hollis/source/xeno-unstable-ppc/xen/include/xen/softirq.h: In function
`cpu_raise_softirq'':
/home/hollis/source/xeno-unstable-ppc/xen/include/xen/softirq.h:28:
warning: use of compound expressions as lvalues is deprecated
static inline void cpu_raise_softirq(unsigned int cpu, unsigned int nr)
{
if ( !test_and_set_bit(nr, &softirq_pending(cpu)) )
smp_send_event_check_cpu(cpu);
}
#define softirq_pending(cpu) __IRQ_STAT((cpu), __softirq_pending)
I have CONFIG_SMP disabled, so the definition being used is this:
#define __IRQ_STAT(cpu, member) ((void)(cpu), irq_stat[0].member)
So the warning is caused by this statement:
&((void)(cpu), irq_stat[0].member))
GCC version:
basalt xeno-unstable-ppc% powerpc64-unknown-linux-gnu-gcc -v
Reading specs
from
/opt/crosstool/powerpc64-unknown-linux-gnu/gcc-3.4.2-glibc-2.3.3/lib/gcc/powerpc64-unknown-linux-gnu/3.4.2/specs
Configured
with:
/home/hollis/source/crosstool-0.28-rc37/build/powerpc64-unknown-linux-gnu/gcc-3.4.2-glibc-2.3.3/gcc-3.4.2/configure
--target=powerpc64-unknown-linux-gnu --host=i686-host_pc-linux-gnu
--prefix=/opt/crosstool/powerpc64-unknown-linux-gnu/gcc-3.4.2-glibc-2.3.3
--disable-multilib
--with-sysroot=/opt/crosstool/powerpc64-unknown-linux-gnu/gcc-3.4.2-glibc-2.3.3/powerpc64-unknown-linux-gnu/sys-root
--with-local-prefix=/opt/crosstool/powerpc64-unknown-linux-gnu/gcc-3.4.2-glibc-2.3.3/powerpc64-unknown-linux-gnu/sys-root
--disable-nls --enable-threads=posix --enable-symvers=gnu
--enable-__cxa_atexit --enable-languages=c,c++ --enable-shared --enable-c99
--enable-long-long
Thread model: posix
gcc version 3.4.2
Undefining CONFIG_SMP and building with GCC 3.4 on x86 should cause the same
problem. Suggestions on how to fix? Removing the (void)cpu fixes it for me...
--
Hollis Blanchard
IBM Linux Technology Center
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