On Thu, 9 Aug 2007 10:18:15 -0400
"Miles Lane" <[email protected]> wrote:
> CC drivers/dma/ioat_dca.o
> drivers/dma/ioat_dca.c: In function 'ioat_dca_get_tag':
> drivers/dma/ioat_dca.c:177: error: implicit declaration of function
> 'cpu_physical_id'
Looks like cpu_physical_id() doesn't get implemented if CONFIG_SMP=n.
Either ioat needs to stop using cpu_physical_id() if SMP=n, or the
supported architectures (i386, x86_64, ia64) should provide a non-SMP
version of cpu_physical_id(). Preferably the latter, I'd say.
Something like this, I suppose...
From: Andrew Morton <[email protected]>
i386, x86_64 and ia64 implement cpu_physical_id() if CONFIG_SMP=y.
Provide a uniprocessor stub so that callers will dtrt.
Cc: Andi Kleen <[email protected]>
Cc: "Luck, Tony" <[email protected]>
Cc: Shannon Nelson <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
include/linux/smp.h | 5 +++++
1 files changed, 5 insertions(+)
diff -puN include/linux/smp.h~implement-cpu_physical_id-on-smp=n include/linux/smp.h
--- a/include/linux/smp.h~implement-cpu_physical_id-on-smp=n
+++ a/include/linux/smp.h
@@ -108,6 +108,11 @@ static inline void smp_send_reschedule(i
0; \
})
+static inline unsigned cpu_physical_id(unsigned cpu)
+{
+ return 0;
+}
+
#endif /* !SMP */
/*
_
-
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