From: Andi Kleen <ak@suse.de>
Date: Sat, 25 Mar 2006 15:31:49 +0000 (+0100)
Subject: [PATCH] x86_64: Remove bogus special case in AMD core parsing.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0085979006fd55ec7c2f721bdaa9af130a08d62a;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[PATCH] x86_64: Remove bogus special case in AMD core parsing.

No need to restrict to power of two here.

TBD needs more double checking

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index db70090a08f..a57eec8311a 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -946,8 +946,6 @@ static int __init init_amd(struct cpuinfo_x86 *c)
 
 	if (c->extended_cpuid_level >= 0x80000008) {
 		c->x86_max_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
-		if (c->x86_max_cores & (c->x86_max_cores - 1))
-			c->x86_max_cores = 1;
 
 		amd_detect_cmp(c);
 	}