linux-kernel - [PATCH 2/4] Revert "sched/topology: Introduce for_each_numa_hop

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Message-Id: <20230925020528.777578-3-yury.norov@gmail.com>
Date:   Sun, 24 Sep 2023 19:05:26 -0700
From:   Yury Norov <yury.norov@...il.com>
To:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org
Cc:     Yury Norov <yury.norov@...il.com>,
        Tariq Toukan <ttoukan.linux@...il.com>,
        Valentin Schneider <vschneid@...hat.com>,
        Maher Sanalla <msanalla@...dia.com>,
        Ingo Molnar <mingo@...nel.org>, Mel Gorman <mgorman@...e.de>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Pawel Chmielewski <pawel.chmielewski@...el.com>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Yury Norov <ynorov@...dia.com>
Subject: [PATCH 2/4] Revert "sched/topology: Introduce for_each_numa_hop_mask()"

Now that the only user of for_each_numa_hop_mask() is switched to using
cpumask_local_spread(), for_each_numa_hop_mask() is a dead code. Thus,
revert commit 06ac01721f7d ("sched/topology: Introduce
for_each_numa_hop_mask()").

Signed-off-by: Yury Norov <yury.norov@...il.com>
Signed-off-by: Yury Norov <ynorov@...dia.com>
---
 include/linux/topology.h | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/include/linux/topology.h b/include/linux/topology.h
index fea32377f7c7..344c2362755a 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -261,22 +261,4 @@ sched_numa_hop_mask(unsigned int node, unsigned int hops)
 }
 #endif	/* CONFIG_NUMA */
 
-/**
- * for_each_numa_hop_mask - iterate over cpumasks of increasing NUMA distance
- *                          from a given node.
- * @mask: the iteration variable.
- * @node: the NUMA node to start the search from.
- *
- * Requires rcu_lock to be held.
- *
- * Yields cpu_online_mask for @node == NUMA_NO_NODE.
- */
-#define for_each_numa_hop_mask(mask, node)				       \
-	for (unsigned int __hops = 0;					       \
-	     mask = (node != NUMA_NO_NODE || __hops) ?			       \
-		     sched_numa_hop_mask(node, __hops) :		       \
-		     cpu_online_mask,					       \
-	     !IS_ERR_OR_NULL(mask);					       \
-	     __hops++)
-
 #endif /* _LINUX_TOPOLOGY_H */
-- 
2.39.2