On Fri, 09 Oct 2009 12:00:55 +0200 Jiri Slaby wrote:
> On 10/09/2009 10:07 AM, akpm@xxxxxxxxxxxxxxxxxxxx wrote:
> > The mm-of-the-moment snapshot 2009-10-09-01-07 has been uploaded to
>
> Hi, build fails with:
> ERROR: "cpufreq_get" [arch/x86/kvm/kvm.ko] undefined!
> because of
> CONFIG_KVM=m
> ...
> # CONFIG_CPU_FREQ is not set
>
> Should cpufreq_get be defined as inline return 0 the same as
> cpufreq_quick_get on !CONFIG_CPU_FREQ?
I submitted a patch for that several days ago, against
linux-next-20091006. (below again)
---
From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
When CONFIG_CPU_FREQ is disabled, cpufreq_get() needs a stub.
Used by kvm (although it looks like a bit of the kvm code could
be omitted when CONFIG_CPU_FREQ is disabled).
arch/x86/built-in.o: In function `kvm_arch_init':
(.text+0x10de7): undefined reference to `cpufreq_get'
Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Tested-by: Eric Paris <eparis@xxxxxxxxxx>
---
include/linux/cpufreq.h | 7 +++++++
1 file changed, 7 insertions(+)
--- linux-next-20091006.orig/include/linux/cpufreq.h
+++ linux-next-20091006/include/linux/cpufreq.h
@@ -291,8 +291,15 @@ struct global_attr {
int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu);
int cpufreq_update_policy(unsigned int cpu);
+#ifdef CONFIG_CPU_FREQ
/* query the current CPU frequency (in kHz). If zero, cpufreq couldn't detect it */
unsigned int cpufreq_get(unsigned int cpu);
+#else
+static inline unsigned int cpufreq_get(unsigned int cpu)
+{
+ return 0;
+}
+#endif
/* query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it */
#ifdef CONFIG_CPU_FREQ
--
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