diff options
author | Len Brown <len.brown@intel.com> | 2011-04-01 15:41:17 -0400 |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2011-05-29 03:39:16 -0400 |
commit | cdaab4a0d330f70c0e5ad8c3f7c65c2e375ea180 (patch) | |
tree | c0737c6c9106f858df5e223b168d548de1c1990e /arch | |
parent | 99c63221435963e0cee2402686ba99293c2ffa9e (diff) |
x86 idle: deprecate "no-hlt" cmdline param
We'd rather that modern machines not check if HLT works on
every entry into idle, for the benefit of machines that had
marginal electricals 15-years ago. If those machines are still running
the upstream kernel, they can use "idle=poll". The only difference
will be that they'll now invoke HLT in machine_hlt().
cc: x86@kernel.org # .39.x
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86/kernel/cpu/bugs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index c39576cb3018..525514cf33c3 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c | |||
@@ -19,6 +19,7 @@ | |||
19 | 19 | ||
20 | static int __init no_halt(char *s) | 20 | static int __init no_halt(char *s) |
21 | { | 21 | { |
22 | WARN_ONCE(1, "\"no-hlt\" is deprecated, please use \"idle=poll\"\n"); | ||
22 | boot_cpu_data.hlt_works_ok = 0; | 23 | boot_cpu_data.hlt_works_ok = 0; |
23 | return 1; | 24 | return 1; |
24 | } | 25 | } |