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| author | Pingfan Liu <kernelfans@gmail.com> | 2019-07-16 16:40:24 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-07-22 11:30:18 +0200 |
| commit | 69732102426b1c55a257386841fb80ec1f425d32 (patch) | |
| tree | 5b6a6361e1adb9719bbd55389769d352eda09890 /arch/x86/kernel/smpboot.c | |
| parent | 5f9e832c137075045d15cd6899ab0505cfb2ca4b (diff) | |
| download | linux-69732102426b1c55a257386841fb80ec1f425d32.tar.gz linux-69732102426b1c55a257386841fb80ec1f425d32.tar.bz2 linux-69732102426b1c55a257386841fb80ec1f425d32.zip | |
x86/realmode: Remove trampoline_status
There is no reader of trampoline_status, it's only written.
It turns out that after commit ce4b1b16502b ("x86/smpboot: Initialize
secondary CPU only if master CPU will wait for it"), trampoline_status is
not needed any more.
Signed-off-by: Pingfan Liu <kernelfans@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/1563266424-3472-1-git-send-email-kernelfans@gmail.com
Diffstat (limited to 'arch/x86/kernel/smpboot.c')
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index fdbd47ceb84d..497e9b7077c1 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1023,8 +1023,6 @@ int common_cpu_up(unsigned int cpu, struct task_struct *idle) static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle, int *cpu0_nmi_registered) { - volatile u32 *trampoline_status = - (volatile u32 *) __va(real_mode_header->trampoline_status); /* start_ip had better be page-aligned! */ unsigned long start_ip = real_mode_header->trampoline_start; @@ -1116,9 +1114,6 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle, } } - /* mark "stuck" area as not stuck */ - *trampoline_status = 0; - if (x86_platform.legacy.warm_reset) { /* * Cleanup possible dangling ends... |