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Message-Id: <20160127180739.608538883@linuxfoundation.org>
Date: Wed, 27 Jan 2016 10:15:47 -0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Yang Shi <yang.shi@...aro.org>,
Will Deacon <will.deacon@....com>,
Catalin Marinas <catalin.marinas@....com>
Subject: [PATCH 3.14 59/59] arm64: restore bogomips information in /proc/cpuinfo
3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yang Shi <yang.shi@...aro.org>
commit 92e788b749862ebe9920360513a718e5dd4da7a9 upstream.
As previously reported, some userspace applications depend on bogomips
showed by /proc/cpuinfo. Although there is much less legacy impact on
aarch64 than arm, it does break libvirt.
This patch reverts commit 326b16db9f69 ("arm64: delay: don't bother
reporting bogomips in /proc/cpuinfo"), but with some tweak due to
context change and without the pr_info().
Fixes: 326b16db9f69 ("arm64: delay: don't bother reporting bogomips in /proc/cpuinfo")
Signed-off-by: Yang Shi <yang.shi@...aro.org>
Acked-by: Will Deacon <will.deacon@....com>
Cc: <stable@...r.kernel.org> # 3.12+
Signed-off-by: Catalin Marinas <catalin.marinas@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
arch/arm64/kernel/setup.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -446,6 +446,10 @@ static int c_show(struct seq_file *m, vo
seq_printf(m, "processor\t: %d\n", i);
#endif
+ seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
+ loops_per_jiffy / (500000UL/HZ),
+ loops_per_jiffy / (5000UL/HZ) % 100);
+
/*
* Dump out the common processor features in a single line.
* Userspace should read the hwcaps with getauxval(AT_HWCAP)
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