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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-08-28 08:47:38 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-29 12:07:24 +0200 |
| commit | 1dd439fe97e1a32cbb980c180f1bcb54bb6a2a55 (patch) | |
| tree | 03c75d95515bd478a7f74367f2f8f557a2a02139 /arch/x86/kernel/setup_percpu.c | |
| parent | x86/idt: Unify gate_struct handling for 32/64-bit kernels (diff) | |
| download | linux-1dd439fe97e1a32cbb980c180f1bcb54bb6a2a55.tar.xz linux-1dd439fe97e1a32cbb980c180f1bcb54bb6a2a55.zip | |
x86/percpu: Use static initializer for GDT entry
The IDT cleanup is about to remove pack_descriptor(). The GDT setup for the
per-cpu storage can be achieved with the static initializer as well. Replace
it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064957.954214927@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/setup_percpu.c')
| -rw-r--r-- | arch/x86/kernel/setup_percpu.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 10edd1e69a68..6e8fcb6f7e1e 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -155,13 +155,10 @@ static void __init pcpup_populate_pte(unsigned long addr) static inline void setup_percpu_segment(int cpu) { #ifdef CONFIG_X86_32 - struct desc_struct gdt; + struct desc_struct d = GDT_ENTRY_INIT(0x8092, per_cpu_offset(cpu), + 0xFFFFF); - pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF, - 0x2 | DESCTYPE_S, 0x8); - gdt.s = 1; - write_gdt_entry(get_cpu_gdt_rw(cpu), - GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); + write_gdt_entry(get_cpu_gdt_rw(cpu), GDT_ENTRY_PERCPU, &d, DESCTYPE_S); #endif } |