lkml.org 
[lkml]   [2021]   [Nov]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 6/6] x86/cpu: Remove "noclflush"
Date
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
\
 
 \ /
  Last update: 2021-11-12 11:33    [W:0.127 / U:0.348 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site