[PATCH 01/20] exit/doublefault: Remove apparently bogus comment about rewind_stack_do_exit

[Eric W. Biederman]

I do not see panic calling rewind_stack_do_exit anywhere, nor can I
find anywhere in the history where doublefault_shim has called
rewind_stack_do_exit.  So I don't think this comment was ever actually
correct.

Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Fixes: 7d8d8cfdee9a ("x86/doublefault/32: Rewrite the x86_32 #DF handler and unify with 64-bit")
Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
---
 arch/x86/kernel/doublefault_32.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c
index d1d49e3d536b..3b58d8703094 100644
--- a/arch/x86/kernel/doublefault_32.c
+++ b/arch/x86/kernel/doublefault_32.c
@@ -77,9 +77,6 @@ asmlinkage noinstr void __noreturn doublefault_shim(void)
 	 * some way to reconstruct CR3.  We could make a credible guess based
 	 * on cpu_tlbstate, but that would be racy and would not account for
 	 * PTI.
-	 *
-	 * Instead, don't bother.  We can return through
-	 * rewind_stack_do_exit() instead.
 	 */
 	panic("cannot return from double fault\n");
 }
-- 
2.20.1