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From: Andrew Jones <ajones@ventanamicro.com>
To: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: paul.walmsley@sifive.com, palmer@dabbelt.com,
	charlie@rivosinc.com, jesse@rivosinc.com,
	Anup Patel <apatel@ventanamicro.com>
Subject: [PATCH 4/9] riscv: Change check_unaligned_access_speed_all_cpus to void
Date: Fri,  7 Feb 2025 17:19:44 +0100	[thread overview]
Message-ID: <20250207161939.46139-15-ajones@ventanamicro.com> (raw)
In-Reply-To: <20250207161939.46139-11-ajones@ventanamicro.com>

The return value of check_unaligned_access_speed_all_cpus() is always
zero, so make the function void so we don't need to concern ourselves
with it. The change also allows us to tidy up
check_unaligned_access_all_cpus() a bit.

Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
---
 arch/riscv/kernel/unaligned_access_speed.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/arch/riscv/kernel/unaligned_access_speed.c b/arch/riscv/kernel/unaligned_access_speed.c
index 02b485dc4bc4..780f1c5f512a 100644
--- a/arch/riscv/kernel/unaligned_access_speed.c
+++ b/arch/riscv/kernel/unaligned_access_speed.c
@@ -218,7 +218,7 @@ static int riscv_offline_cpu(unsigned int cpu)
 }
 
 /* Measure unaligned access speed on all CPUs present at boot in parallel. */
-static int __init check_unaligned_access_speed_all_cpus(void)
+static void __init check_unaligned_access_speed_all_cpus(void)
 {
 	unsigned int cpu;
 	unsigned int cpu_count = num_possible_cpus();
@@ -226,7 +226,7 @@ static int __init check_unaligned_access_speed_all_cpus(void)
 
 	if (!bufs) {
 		pr_warn("Allocation failure, not measuring misaligned performance\n");
-		return 0;
+		return;
 	}
 
 	/*
@@ -261,12 +261,10 @@ static int __init check_unaligned_access_speed_all_cpus(void)
 	}
 
 	kfree(bufs);
-	return 0;
 }
 #else /* CONFIG_RISCV_PROBE_UNALIGNED_ACCESS */
-static int __init check_unaligned_access_speed_all_cpus(void)
+static void __init check_unaligned_access_speed_all_cpus(void)
 {
-	return 0;
 }
 #endif
 
@@ -403,10 +401,10 @@ static int __init vec_check_unaligned_access_speed_all_cpus(void *unused __alway
 
 static int __init check_unaligned_access_all_cpus(void)
 {
-	bool all_cpus_emulated;
 	int cpu;
 
-	all_cpus_emulated = check_unaligned_access_emulated_all_cpus();
+	if (!check_unaligned_access_emulated_all_cpus())
+		check_unaligned_access_speed_all_cpus();
 
 	if (!has_vector()) {
 		for_each_online_cpu(cpu)
@@ -417,9 +415,6 @@ static int __init check_unaligned_access_all_cpus(void)
 			    NULL, "vec_check_unaligned_access_speed_all_cpus");
 	}
 
-	if (!all_cpus_emulated)
-		return check_unaligned_access_speed_all_cpus();
-
 	return 0;
 }
 
-- 
2.48.1


  parent reply	other threads:[~2025-02-07 16:20 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-07 16:19 [PATCH 0/9] riscv: Unaligned access speed probing fixes and skipping Andrew Jones
2025-02-07 16:19 ` [PATCH 1/9] riscv: Annotate unaligned access init functions Andrew Jones
2025-02-13 12:59   ` Alexandre Ghiti
2025-02-07 16:19 ` [PATCH 2/9] riscv: Fix riscv_online_cpu_vec Andrew Jones
2025-02-07 16:47   ` Clément Léger
2025-02-07 17:08     ` Andrew Jones
2025-02-07 17:43       ` Clément Léger
2025-02-07 18:08         ` Andrew Jones
2025-02-13 13:02   ` Alexandre Ghiti
2025-02-07 16:19 ` [PATCH 3/9] riscv: Fix check_unaligned_access_all_cpus Andrew Jones
2025-02-13 13:12   ` Alexandre Ghiti
2025-02-07 16:19 ` Andrew Jones [this message]
2025-02-07 16:42   ` [PATCH 4/9] riscv: Change check_unaligned_access_speed_all_cpus to void Clément Léger
2025-02-13 13:15   ` Alexandre Ghiti
2025-02-07 16:19 ` [PATCH 5/9] riscv: Fix set up of cpu hotplug callbacks Andrew Jones
2025-02-07 16:44   ` Clément Léger
2025-02-13 13:25   ` Alexandre Ghiti
2025-02-13 13:33   ` Alexandre Ghiti
2025-02-07 16:19 ` [PATCH 6/9] riscv: Fix set up of vector cpu hotplug callback Andrew Jones
2025-02-07 17:36   ` Clément Léger
2025-02-07 18:15     ` Andrew Jones
2025-02-13 13:28   ` Alexandre Ghiti
2025-02-07 16:19 ` [PATCH 7/9] riscv: Prepare for unaligned access type table lookups Andrew Jones
2025-02-08  1:22   ` Charlie Jenkins
2025-02-10  9:43     ` Andrew Jones
2025-02-10 17:10       ` Charlie Jenkins
2025-02-10 10:16     ` Anup Patel
2025-02-10 11:07       ` Clément Léger
2025-02-10 14:06         ` Andrew Jones
2025-02-10 14:20           ` Clément Léger
2025-02-10 17:20             ` Charlie Jenkins
2025-02-10 20:42               ` Clément Léger
2025-02-10 20:53                 ` Charlie Jenkins
2025-02-10 20:57                   ` Clément Léger
2025-02-10 21:13                     ` Charlie Jenkins
2025-02-11  4:26                     ` Anup Patel
2025-02-11  8:37                       ` Clément Léger
2025-02-11 18:09                       ` Palmer Dabbelt
2025-02-10 17:19       ` Charlie Jenkins
2025-02-10 20:37         ` Clément Léger
2025-02-11  9:04           ` Andrew Jones
2025-02-07 16:19 ` [PATCH 8/9] riscv: Implement check_unaligned_access_table Andrew Jones
2025-02-07 16:19 ` [PATCH 9/9] riscv: Add Ventana unaligned access table entries Andrew Jones
2025-02-08  7:59 ` [PATCH 0/9] riscv: Unaligned access speed probing fixes and skipping Anup Patel
2025-02-10  9:26   ` Andrew Jones
2025-02-10  9:58     ` Anup Patel
2025-02-10 11:01       ` Andrew Jones

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