[xen staging] x86/current: Annotate get_cpu_info() as attr_const

[patchbot@xxxxxxx]

commit b2c0dc44b37516b758c38de04c61ad295ac0dff2
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Tue Aug 12 11:25:36 2025 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Thu Aug 14 21:49:27 2025 +0100

    x86/current: Annotate get_cpu_info() as attr_const
    
    The result of this calculation will always be identical, even across context
    switch in x86.  Tell the compiler.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/include/asm/current.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/include/asm/current.h 
b/xen/arch/x86/include/asm/current.h
index a7c9473428..fd30422707 100644
--- a/xen/arch/x86/include/asm/current.h
+++ b/xen/arch/x86/include/asm/current.h
@@ -83,7 +83,7 @@ static inline struct cpu_info 
*get_cpu_info_from_stack(unsigned long sp)
     return (struct cpu_info *)((sp | (STACK_SIZE - 1)) + 1) - 1;
 }
 
-static inline struct cpu_info *get_cpu_info(void)
+static inline attr_const struct cpu_info *get_cpu_info(void)
 {
 #ifdef __clang__
     /* Clang complains that sp in the else case is not initialised. */
--
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