Re: [PATCH] ACPI / NUMA: Add stub function for pxm_to_node

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On 2020/9/29 3:45, Nathan Chancellor wrote:
After commit 01feba590cd6 ("ACPI: Do not create new NUMA domains from
ACPI static tables that are not SRAT"):

$ scripts/config --file arch/x86/configs/x86_64_defconfig -d NUMA -e ACPI_NFIT

$ make -skj"$(nproc)" distclean defconfig drivers/acpi/nfit/
drivers/acpi/nfit/core.c: In function ‘acpi_nfit_register_region’:
drivers/acpi/nfit/core.c:3010:27: error: implicit declaration of
function ‘pxm_to_node’; did you mean ‘xa_to_node’?
[-Werror=implicit-function-declaration]
  3010 |   ndr_desc->target_node = pxm_to_node(spa->proximity_domain);
       |                           ^~~~~~~~~~~
       |                           xa_to_node
cc1: some warnings being treated as errors
...

Add a stub function like acpi_map_pxm_to_node had so that the build
continues to work.

Fixes: 01feba590cd6 ("ACPI: Do not create new NUMA domains from ACPI static tables that are not SRAT")
Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
---

I am not sure if this is the right place or value for this. It looks
like there is going to be another stub function added here, which is
going through -mm:

https://lkml.kernel.org/r/159643094925.4062302.14979872973043772305.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

  include/acpi/acpi_numa.h | 5 +++++
  1 file changed, 5 insertions(+)

diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index fdebcfc6c8df..09eb3bc20ff5 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -22,5 +22,10 @@ extern int acpi_numa __initdata;
  extern void bad_srat(void);
  extern int srat_disabled(void);
+#else /* CONFIG_ACPI_NUMA */
+static inline int pxm_to_node(int pxm)
+{
+	return 0;
+}
  #endif				/* CONFIG_ACPI_NUMA */
  #endif				/* __ACP_NUMA_H */

Looks good to me,

Reviewed-by: Hanjun Guo <guohanjun@xxxxxxxxxx>



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