When ACPI SLIT table has an I/O locality (i.e. a locality
unique to an I/O device), numa_set_distance() emits this warning
message:
NUMA: Warning: node ids are out of bound, from=-1 to=-1 distance=10
acpi_numa_slit_init() calls numa_set_distance() with
pxm_to_node(), which assumes that all localities have been
parsed with SRAT previously. SRAT does not list I/O localities,
where as SLIT lists all localities including I/Os. Hence,
pxm_to_node() returns NUMA_NO_NODE (-1) for an I/O locality.
I/O localities are not supported and are ignored today, but emitting
such warning message leads to unnecessary confusion.
Change acpi_numa_slit_init() to avoid calling
numa_set_distance() with NUMA_NO_NODE.
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/n/tip-dSvpjjvp8aMzs1ybkftxohlh@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
a85eba8814