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x86/entry/32: Remove GET_THREAD_INFO() from entry code 

The entry code used to cache the thread_info pointer in the EBP register,
but all the code that used it has been moved to C.  Remove the unused
code to get the pointer.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1462416278-11974-3-git-send-email-brgerst@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Brian Gerst 2016-05-04 22:44:37 -04:00 committed by Ingo Molnar
parent 092c74e420
commit 1e17880371
1 changed files with 0 additions and 3 deletions
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3
arch/x86/entry/entry_32.S
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@ -207,7 +207,6 @@
ENTRY(ret_from_fork)
pushl %eax
call schedule_tail
GET_THREAD_INFO(%ebp)
popl %eax
/* When we fork, we trace the syscall return in the child, too. */
@ -219,7 +218,6 @@ END(ret_from_fork)
ENTRY(ret_from_kernel_thread)
pushl %eax
call schedule_tail
GET_THREAD_INFO(%ebp)
popl %eax
movl PT_EBP(%esp), %eax
call *PT_EBX(%esp)
@ -247,7 +245,6 @@ ENDPROC(ret_from_kernel_thread)
ret_from_exception:
preempt_stop(CLBR_ANY)
ret_from_intr:
GET_THREAD_INFO(%ebp)
#ifdef CONFIG_VM86
movl PT_EFLAGS(%esp), %eax # mix EFLAGS and CS
movb PT_CS(%esp), %al