linux-kernel - linux-next: build failure after merge of the akpm tree

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Date:   Fri, 30 Nov 2018 16:30:08 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Anshuman Khandual <anshuman.khandual@....com>
Subject: linux-next: build failure after merge of the akpm tree

Hi Andrew,

After merging the akpm tree, today's linux-next build (powerpc_le perf)
failed like this:

bench/numa.c: In function 'bind_to_node':
bench/numa.c:301:21: error: 'NUMA_NO_NODE' undeclared (first use in this function); did you mean 'NUMA_NUM_NODES'?
  if (target_node == NUMA_NO_NODE) {
                     ^~~~~~~~~~~~
                     NUMA_NUM_NODES
bench/numa.c:301:21: note: each undeclared identifier is reported only once for each function it appears in
bench/numa.c: In function 'bind_to_memnode':
bench/numa.c:342:14: error: 'NUMA_NO_NODE' undeclared (first use in this function); did you mean 'NUMA_NUM_NODES'?
  if (node == NUMA_NO_NODE)
              ^~~~~~~~~~~~
              NUMA_NUM_NODES
bench/numa.c: In function 'init_thread_data':
bench/numa.c:1366:19: error: 'NUMA_NO_NODE' undeclared (first use in this function); did you mean 'NUMA_NUM_NODES'?
   td->bind_node = NUMA_NO_NODE;
                   ^~~~~~~~~~~~
                   NUMA_NUM_NODES

Caused by patch

  "mm: replace all open encodings for NUMA_NO_NODE"

I applied the following partial revert for today:

From 765f2fd3d18ca1d4d0783b888d127af784929e3e Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Fri, 30 Nov 2018 16:26:32 +1100
Subject: [PATCH] partial revert (perf) of "mm: replace all open encodings for NUMA_NO_NODE"

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 tools/perf/bench/numa.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index e0ad5f1de226..44195514b19e 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -298,7 +298,7 @@ static cpu_set_t bind_to_node(int target_node)
 
 	CPU_ZERO(&mask);
 
-	if (target_node == NUMA_NO_NODE) {
+	if (target_node == -1) {
 		for (cpu = 0; cpu < g->p.nr_cpus; cpu++)
 			CPU_SET(cpu, &mask);
 	} else {
@@ -339,7 +339,7 @@ static void bind_to_memnode(int node)
 	unsigned long nodemask;
 	int ret;
 
-	if (node == NUMA_NO_NODE)
+	if (node == -1)
 		return;
 
 	BUG_ON(g->p.nr_nodes > (int)sizeof(nodemask)*8);
@@ -1363,7 +1363,7 @@ static void init_thread_data(void)
 		int cpu;
 
 		/* Allow all nodes by default: */
-		td->bind_node = NUMA_NO_NODE;
+		td->bind_node = -1;
 
 		/* Allow all CPUs by default: */
 		CPU_ZERO(&td->bind_cpumask);
-- 
2.19.1

-- 
Cheers,
Stephen Rothwell

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