linux-kernel - [PATCH] x86/kvm: Remove the rest of do_async_page

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Date:   Sun,  1 Mar 2020 07:21:37 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        kvm list <kvm@...r.kernel.org>,
        Paolo Bonzini <pbonzini@...hat.com>
Cc:     Andy Lutomirski <luto@...nel.org>,
        kbuild test robot <lkp@...el.com>
Subject: [PATCH] x86/kvm: Remove the rest of do_async_page_fault

I failed to remove the 32-bit asm stub, causing a build failure.  Remove
it.

Fixes: "x86/kvm: Handle async page faults directly through do_page_fault()"
Reported-by: kbuild test robot <lkp@...el.com>
Signed-off-by: Andy Lutomirski <luto@...nel.org>
---

This should probably be folded in to avoid breaking bisection if that's
still convenient.

 arch/x86/entry/entry_32.S | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 7e0560442538..9b5288268aee 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -1698,14 +1698,6 @@ SYM_CODE_START(general_protection)
 	jmp	common_exception
 SYM_CODE_END(general_protection)
 
-#ifdef CONFIG_KVM_GUEST
-SYM_CODE_START(async_page_fault)
-	ASM_CLAC
-	pushl	$do_async_page_fault
-	jmp	common_exception_read_cr2
-SYM_CODE_END(async_page_fault)
-#endif
-
 SYM_CODE_START(rewind_stack_do_exit)
 	/* Prevent any naive code from trying to unwind to our caller. */
 	xorl	%ebp, %ebp
-- 
2.24.1