Messages in this thread Patch in this message | | | Date | Sat, 16 Nov 2019 12:02:40 -0000 | From | "tip-bot2 for Thomas Gleixner" <> | Subject | [tip: x86/asm] x86/entry/64: Remove pointless jump in paranoid_exit |
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The following commit has been merged into the x86/asm branch of tip:
Commit-ID: 45c08383141794a7e9b26f35d491b74f33ac469e Gitweb: https://git.kernel.org/tip/45c08383141794a7e9b26f35d491b74f33ac469e Author: Thomas Gleixner <tglx@linutronix.de> AuthorDate: Wed, 23 Oct 2019 14:27:07 +02:00 Committer: Thomas Gleixner <tglx@linutronix.de> CommitterDate: Sat, 16 Nov 2019 12:55:55 +01:00
x86/entry/64: Remove pointless jump in paranoid_exit
Jump directly to restore_regs_and_return_to_kernel instead of making a pointless extra jump through .Lparanoid_exit_restore
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20191023123117.779277679@linutronix.de
--- arch/x86/entry/entry_64.S | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index d58c012..76942cb 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -1273,12 +1273,11 @@ SYM_CODE_START_LOCAL(paranoid_exit) /* Always restore stashed CR3 value (see paranoid_entry) */ RESTORE_CR3 scratch_reg=%rbx save_reg=%r14 SWAPGS_UNSAFE_STACK - jmp .Lparanoid_exit_restore + jmp restore_regs_and_return_to_kernel .Lparanoid_exit_no_swapgs: TRACE_IRQS_IRETQ_DEBUG /* Always restore stashed CR3 value (see paranoid_entry) */ RESTORE_CR3 scratch_reg=%rbx save_reg=%r14 -.Lparanoid_exit_restore: jmp restore_regs_and_return_to_kernel SYM_CODE_END(paranoid_exit)
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