The init_cpu_topology function can be put into the __init section and discarded after boot, because it is only called from smp_prepare_cpus, which is also marked __init. This was reported by gcc after Vincent Guittot added the parse_dt_topology function in 339ca09d7ada "ARM: 7463/1: topology: Update cpu_power according to DT information".
Without this patch, building kzm9g_defconfig results in: WARNING: vmlinux.o(.text+0xb5a0): Section mismatch in reference from the function init_cpu_topology() to the function .init.text:parse_dt_topology() The function init_cpu_topology() references the function __init parse_dt_topology(). This is often because init_cpu_topology lacks a __init annotation or the annotation of parse_dt_topology is wrong. Signed-off-by: Arnd Bergmann <[email protected]> Cc: Vincent Guittot <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Russell King <[email protected]> --- arch/arm/kernel/topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c index 198b084..26c12c6 100644 --- a/arch/arm/kernel/topology.c +++ b/arch/arm/kernel/topology.c @@ -321,7 +321,7 @@ void store_cpu_topology(unsigned int cpuid) * init_cpu_topology is called at boot when only one cpu is running * which prevent simultaneous write access to cpu_topology array */ -void init_cpu_topology(void) +void __init init_cpu_topology(void) { unsigned int cpu; -- 1.7.10 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
