[PATCH v2 1/4] EDAC,mce_amd: Find node ID on SMCA systems using generic methods

[Yazen Ghannam <Yazen.Ghannam@amd.com>]

From: Yazen Ghannam <yazen.ghannam@amd.com>

We should move away from using AMD-specific amd_get_nb_id() to find a node
ID and move toward using generic Linux methods. We can use cpu_to_node()
since NUMA should be working as expected on newly released Fam17h systems.

Replace call to amd_get_nb_id() and related shifting by a call to
cpu_to_node() which works as expected.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
---
Link: http://lkml.kernel.org/r/1486760120-60944-1-git-send-email-Yazen.Ghannam@amd.com

v1->v2:
- Just use cpu_to_node() instead of trying to make amd_get_nb_id() work.

 drivers/edac/mce_amd.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c
index ba35b7e..dbccf40 100644
--- a/drivers/edac/mce_amd.c
+++ b/drivers/edac/mce_amd.c
@@ -878,12 +878,8 @@ static void decode_smca_errors(struct mce *m)
 		pr_cont("%s.\n", smca_mce_descs[bank_type].descs[xec]);
 	}
 
-	/*
-	 * amd_get_nb_id() returns the last level cache id.
-	 * The last level cache on Fam17h is 1 level below the node.
-	 */
 	if (bank_type == SMCA_UMC && xec == 0 && decode_dram_ecc)
-		decode_dram_ecc(amd_get_nb_id(m->extcpu) >> 1, m);
+		decode_dram_ecc(cpu_to_node(m->extcpu), m);
 }
 
 static inline void amd_decode_err_code(u16 ec)
-- 
2.7.4