[xen staging] x86/boot: Drop stale comment about zeroing the stack

[patchbot@xxxxxxx]

commit e1c8a3dc8aeee26e7d483669ca34fceb8e80d933
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Mon Sep 16 12:56:06 2024 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Mon Sep 23 15:46:58 2024 +0100

    x86/boot: Drop stale comment about zeroing the stack
    
    This used to be true, but was altered by commit 37786b23b027 ("x86/cet: 
Remove
    writeable mapping of the BSPs shadow stack") which moved cpu0_stack into
    .init.bss.stack_aligned.
    
    Fixes: 37786b23b027 ("x86/cet: Remove writeable mapping of the BSPs shadow 
stack")
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/boot/head.S | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/xen/arch/x86/boot/head.S b/xen/arch/x86/boot/head.S
index 12bbb97f33..cfc5a7b47d 100644
--- a/xen/arch/x86/boot/head.S
+++ b/xen/arch/x86/boot/head.S
@@ -652,11 +652,7 @@ trampoline_setup:
         cmpb    $0, sym_esi(efi_platform)
         jnz     1f
 
-        /*
-         * Initialise the BSS.
-         *
-         * !!! WARNING - also zeroes the current stack !!!
-         */
+        /* Initialise the BSS. */
         lea     sym_esi(__bss_start), %edi
         lea     sym_esi(__bss_end), %ecx
         sub     %edi,%ecx
--
generated by git-patchbot for /home/xen/git/xen.git#staging