Messages in this thread Patch in this message | | | From | Toshi Kani <> | Subject | [PATCH 2/3] acpi: Add export to acpi_map_pxm_to_node() | Date | Tue, 2 Jun 2015 18:26:51 -0600 |
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acpi_get_node() allows ACPI kernel modules to map a proximity ID to a node ID from ACPI _PXM method. Some ACPI static tables, such as SRAT, DMAR, PMTT and NFIT, also contain proximity IDs.
This patch exports acpi_map_pxm_to_node() so that ACPI kernel modules can call this function to map a proximity ID to a node ID from an ACPI static table as well.
When CONFIG_ACPI_NUMA is not set, acpi_map_pxm_to_node() always returns 0.
Signed-off-by: Toshi Kani <toshi.kani@hp.com> --- drivers/acpi/numa.c | 1 + include/linux/acpi.h | 5 +++++ 2 files changed, 6 insertions(+)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index 4898082..8f50d5d 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -90,6 +90,7 @@ int acpi_map_pxm_to_node(int pxm) return node; } +EXPORT_SYMBOL(acpi_map_pxm_to_node); static void __init acpi_table_print_srat_entry(struct acpi_subtable_header *header) diff --git a/include/linux/acpi.h b/include/linux/acpi.h index e4da5e3..7a76e51 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -289,8 +289,13 @@ extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d); extern void acpi_osi_setup(char *str); #ifdef CONFIG_ACPI_NUMA +int acpi_map_pxm_to_node(int pxm); int acpi_get_node(acpi_handle handle); #else +static inline int acpi_map_pxm_to_node(int pxm) +{ + return 0; +} static inline int acpi_get_node(acpi_handle handle) { return 0;
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