From: Borislav Petkov <bp@alien8.de>
To: X86 ML <x86@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>, Borislav Petkov <bp@suse.de>,
"H. Peter Anvin" <hpa@linux.intel.com>
Subject: [PATCH] x86, CPU, AMD: Fix a shadowed variable situation
Date: Wed, 15 Jan 2014 12:52:15 +0100 [thread overview]
Message-ID: <1389786735-16751-1-git-send-email-bp@alien8.de> (raw)
From: Borislav Petkov <bp@suse.de>
Having u32 and struct cpuinfo_x86 * by the same name is not very smart,
although it was ok in this case due to the limited scope of u32 c and it
being used only once in there.
Fix this.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: H. Peter Anvin <hpa@linux.intel.com>
---
arch/x86/kernel/cpu/amd.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 6ac3a67ad471..d3153e281d72 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -799,14 +799,10 @@ static void cpu_detect_tlb_amd(struct cpuinfo_x86 *c)
}
/* Handle DTLB 2M and 4M sizes, fall back to L1 if L2 is disabled */
- if (!((eax >> 16) & mask)) {
- u32 a, b, c, d;
-
- cpuid(0x80000005, &a, &b, &c, &d);
- tlb_lld_2m[ENTRIES] = (a >> 16) & 0xff;
- } else {
+ if (!((eax >> 16) & mask))
+ tlb_lld_2m[ENTRIES] = (cpuid_eax(0x80000005) >> 16) & 0xff;
+ else
tlb_lld_2m[ENTRIES] = (eax >> 16) & mask;
- }
/* a 4M entry uses two 2M entries */
tlb_lld_4m[ENTRIES] = tlb_lld_2m[ENTRIES] >> 1;
--
1.8.5.2.192.g7794a68
next reply other threads:[~2014-01-15 11:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-15 11:52 Borislav Petkov [this message]
2014-01-15 12:25 ` [tip:x86/cleanups] x86, cpu, amd: " tip-bot for Borislav Petkov
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