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[tip:x86/asm] x86/entry/32: Remove GET_THREAD_INFO() from entry code

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Commit-ID:  1e17880371f85d3d866962e04ba3567c0654a125
Gitweb:     http://git.kernel.org/tip/1e17880371f85d3d866962e04ba3567c0654a125
Author:     Brian Gerst <brgerst@gmail.com>
AuthorDate: Wed, 4 May 2016 22:44:37 -0400
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Thu, 5 May 2016 08:37:30 +0200

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>
---
 arch/x86/entry/entry_32.S | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index c84d99b..983e5d3 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -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

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[PATCH 0/3] Misc x86 cleanups Brian Gerst <brgerst@gmail.com> - 2016-05-05 04:50 +0200
  [PATCH 1/3] x86: Don't save/restore EFLAGS on task switch Brian Gerst <brgerst@gmail.com> - 2016-05-05 04:50 +0200
    Re: [PATCH 1/3] x86: Don't save/restore EFLAGS on task switch Andy Lutomirski <luto@amacapital.net> - 2016-05-05 05:30 +0200
    [tip:x86/asm] x86/entry, sched/x86: Don't save/restore EFLAGS on  task switch tip-bot for Brian Gerst <tipbot@zytor.com> - 2016-05-05 11:40 +0200
  [PATCH 2/3] x86-32: Remove GET_THREAD_INFO from entry code Brian Gerst <brgerst@gmail.com> - 2016-05-05 04:50 +0200
    Re: [PATCH 2/3] x86-32: Remove GET_THREAD_INFO from entry code Andy Lutomirski <luto@amacapital.net> - 2016-05-05 05:30 +0200
    [tip:x86/asm] x86/entry/32: Remove GET_THREAD_INFO() from entry  code tip-bot for Brian Gerst <tipbot@zytor.com> - 2016-05-05 11:40 +0200
  [PATCH 3/3] x86-32: Remove asmlinkage_protect Brian Gerst <brgerst@gmail.com> - 2016-05-05 04:50 +0200
    Re: [PATCH 3/3] x86-32: Remove asmlinkage_protect Andy Lutomirski <luto@amacapital.net> - 2016-05-05 05:30 +0200
    [tip:x86/asm] x86/entry/32: Remove asmlinkage_protect() tip-bot for Brian Gerst <tipbot@zytor.com> - 2016-05-05 11:40 +0200

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