linux-kernel - [PATCH] x86/cpu: Move identify_cpu_without

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Date: Tue, 21 May 2024 15:48:23 +0300
From: Nikolay Borisov <nik.borisov@...e.com>
To: x86@...nel.org
Cc: linux-kernel@...r.kernel.org,
	Nikolay Borisov <nik.borisov@...e.com>
Subject: [PATCH] x86/cpu: Move identify_cpu_without_cpuid() into main branch

No point in duplicating if (!have_cpuid_p()) check. Simply move
identify_cpu_without_cpuid() into the else branch. No functional
changes.

Signed-off-by: Nikolay Borisov <nik.borisov@...e.com>
---
 arch/x86/kernel/cpu/common.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 2b170da84f97..69265c0acaea 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1578,9 +1578,6 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
 	memset(&c->x86_capability, 0, sizeof(c->x86_capability));
 	c->extended_cpuid_level = 0;
 
-	if (!have_cpuid_p())
-		identify_cpu_without_cpuid(c);
-
 	/* cyrix could have cpuid enabled via c_identify()*/
 	if (have_cpuid_p()) {
 		cpu_detect(c);
@@ -1601,6 +1598,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
 		if (this_cpu->c_bsp_init)
 			this_cpu->c_bsp_init(c);
 	} else {
+		identify_cpu_without_cpuid(c);
 		setup_clear_cpu_cap(X86_FEATURE_CPUID);
 		get_cpu_address_sizes(c);
 		cpu_init_topology(c);
-- 
2.34.1