From: Borislav Petkov <bp@alien8.de>
To: X86 ML <x86@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 6/6] x86/cpu: Remove "noclflush"
Date: Fri, 12 Nov 2021 11:32:46 +0100 [thread overview]
Message-ID: <20211112103246.7555-7-bp@alien8.de> (raw)
In-Reply-To: <20211112103246.7555-1-bp@alien8.de>
From: Borislav Petkov <bp@suse.de>
Not really needed anymore and there's clearcpuid=.
Signed-off-by: Borislav Petkov <bp@suse.de>
---
Documentation/admin-guide/kernel-parameters.txt | 2 --
arch/x86/kernel/cpu/common.c | 8 --------
2 files changed, 10 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 3a4c3fc88bf1..5239d4ae2b91 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3348,8 +3348,6 @@
nocache [ARM]
- noclflush [BUGS=X86] Don't use the CLFLUSH instruction
-
delayacct [KNL] Enable per-task delay accounting
nodsp [SH] Disable hardware DSP at boot time.
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 7e70c54cdff5..9a8ecb388f2f 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1721,14 +1721,6 @@ void identify_secondary_cpu(struct cpuinfo_x86 *c)
update_srbds_msr();
}
-static __init int setup_noclflush(char *arg)
-{
- setup_clear_cpu_cap(X86_FEATURE_CLFLUSH);
- setup_clear_cpu_cap(X86_FEATURE_CLFLUSHOPT);
- return 1;
-}
-__setup("noclflush", setup_noclflush);
-
void print_cpu_info(struct cpuinfo_x86 *c)
{
const char *vendor = NULL;
--
2.29.2
next prev parent reply other threads:[~2021-11-12 10:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-12 10:32 [PATCH 0/6] x86/cpu: Do some janitorial work Borislav Petkov
2021-11-12 10:32 ` [PATCH 1/6] x86/cpu: Allow feature bit names from /proc/cpuinfo in clearcpuid= Borislav Petkov
2022-01-25 11:45 ` [PATCH v1.1] " Borislav Petkov
2021-11-12 10:32 ` [PATCH 2/6] x86/cpu: Remove "nosep" Borislav Petkov
2021-11-12 10:32 ` [PATCH 3/6] x86/cpu: Remove CONFIG_X86_SMAP and "nosmap" Borislav Petkov
2021-11-12 10:32 ` [PATCH 4/6] x86/cpu: Remove "nosmep" Borislav Petkov
2021-11-12 10:32 ` [PATCH 5/6] x86/cpu: Remove "noexec" Borislav Petkov
2021-11-12 10:32 ` Borislav Petkov [this message]
2021-11-15 9:03 ` [PATCH 6/6] x86/cpu: Remove "noclflush" Lai Jiangshan
2021-11-15 9:12 ` Borislav Petkov
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