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From:   Yury Norov <yury.norov@gmail.com>
To:     Yury Norov <yury.norov@gmail.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Rasmus Villemoes <linux@rasmusvillemoes.dk>,
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        David Laight <David.Laight@aculab.com>,
        Joe Perches <joe@perches.com>, Dennis Zhou <dennis@kernel.org>,
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        Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
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        "K. Y. Srinivasan" <kys@microsoft.com>,
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        Stephen Hemminger <sthemmin@microsoft.com>,
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        linux-hyperv@vger.kernel.org
Subject: [PATCH 43/54] drivers/hv: replace cpumask_weight with cpumask_weight_eq
Date:   Sun, 23 Jan 2022 10:39:14 -0800
Message-Id: <20220123183925.1052919-44-yury.norov@gmail.com>
In-Reply-To: <20220123183925.1052919-1-yury.norov@gmail.com>
References: <20220123183925.1052919-1-yury.norov@gmail.com>
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init_vp_index() calls cpumask_weight() to compare the weights of cpumasks
We can do it more efficiently with cpumask_weight_eq because conditional
cpumask_weight may stop traversing the cpumask earlier (at least one), as
soon as condition is met.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
 drivers/hv/channel_mgmt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 60375879612f..7420a5fd47b5 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -762,8 +762,8 @@ static void init_vp_index(struct vmbus_channel *channel)
 		}
 		alloced_mask = &hv_context.hv_numa_map[numa_node];
 
-		if (cpumask_weight(alloced_mask) ==
-		    cpumask_weight(cpumask_of_node(numa_node))) {
+		if (cpumask_weight_eq(alloced_mask,
+			    cpumask_weight(cpumask_of_node(numa_node)))) {
 			/*
 			 * We have cycled through all the CPUs in the node;
 			 * reset the alloced map.
-- 
2.30.2