[xen staging] x86/traps: address violation of MISRA C Rule 8.4

[patchbot@xxxxxxx]

commit 2d93f78bfe25f695d8ffb61d110da9df293ed71b
Author:     Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
AuthorDate: Tue May 28 08:52:27 2024 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue May 28 08:52:27 2024 +0200

    x86/traps: address violation of MISRA C Rule 8.4
    
    Rule 8.4 states: "A compatible declaration shall be visible when
    an object or function with external linkage is defined".
    
    The function do_general_protection is either used is asm code
    or only within this unit, so there is no risk of this getting
    out of sync with its definition, but the function must remain
    extern.
    
    Therefore, this function is deviated using a comment-based deviation.
    No functional change.
    
    Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/traps.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/x86/traps.c b/xen/arch/x86/traps.c
index 468a036081..9906e874d5 100644
--- a/xen/arch/x86/traps.c
+++ b/xen/arch/x86/traps.c
@@ -1257,6 +1257,7 @@ void asmlinkage do_int3(struct cpu_user_regs *regs)
     pv_inject_hw_exception(X86_EXC_BP, X86_EVENT_NO_EC);
 }
 
+/* SAF-1-safe */
 void do_general_protection(struct cpu_user_regs *regs)
 {
 #ifdef CONFIG_PV
--
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