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From:   Yury Norov <yury.norov@gmail.com>
To:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        David Laight <David.Laight@ACULAB.COM>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Joe Perches <joe@perches.com>,
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        Nicholas Piggin <npiggin@gmail.com>,
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        Rasmus Villemoes <linux@rasmusvillemoes.dk>,
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        linux-kernel@vger.kernel.org
Cc:     Yury Norov <yury.norov@gmail.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Feng Tang <feng.tang@intel.com>,
        "H . Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>, x86@kernel.org
Subject: [PATCH 16/22] x86/tsc: use cpumask_weight_gt() in loop_timeout()
Date:   Tue, 10 May 2022 08:47:44 -0700
Message-Id: <20220510154750.212913-17-yury.norov@gmail.com>
In-Reply-To: <20220510154750.212913-1-yury.norov@gmail.com>
References: <20220510154750.212913-1-yury.norov@gmail.com>
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cpumask_weight_gt() is more efficient because it may stop traversing
cpumask depending on condition.

This piece is not performance-critical, but helps keeping consistency of
cpumask_weight() usage.

CC: Borislav Petkov <bp@alien8.de>
CC: Dave Hansen <dave.hansen@linux.intel.com>
CC: Feng Tang <feng.tang@intel.com>
CC: H. Peter Anvin <hpa@zytor.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: x86@kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
 arch/x86/kernel/tsc_sync.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 9452dc9664b5..2dc80e6f0a4f 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -340,7 +340,7 @@ static cycles_t check_tsc_warp(unsigned int timeout)
  */
 static inline unsigned int loop_timeout(int cpu)
 {
-	return (cpumask_weight(topology_core_cpumask(cpu)) > 1) ? 2 : 20;
+	return cpumask_weight_gt(topology_core_cpumask(cpu), 1) ? 2 : 20;
 }
 
 /*
-- 
2.32.0