From 1e17880371f85d3d866962e04ba3567c0654a125 Mon Sep 17 00:00:00 2001 From: Brian Gerst Date: Wed, 4 May 2016 22:44:37 -0400 Subject: [PATCH] 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 Acked-by: Andy Lutomirski Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Borislav Petkov Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1462416278-11974-3-git-send-email-brgerst@gmail.com Signed-off-by: Ingo Molnar --- 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 c84d99bfff94..983e5d3a0d27 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 -- 2.39.5