[xen staging] xen: add missing noreturn attribute

[patchbot@xxxxxxx]

commit 94b1bd05d3b98d50787e9f6c0d566a16197ad41c
Author:     Dmytro Prokopchuk1 <dmytro_prokopchuk1@xxxxxxxx>
AuthorDate: Thu Jul 24 22:53:45 2025 +0000
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxx>
CommitDate: Fri Jul 25 13:13:47 2025 -0700

    xen: add missing noreturn attribute
    
    These functions never return to their caller,
    causing a violation of MISRA C Rule 2.1:
    "A project shall not contain unreachable code".
    Add the `noreturn' attribute to fix this.
    
    No functional changes.
    
    Signed-off-by: Dmytro Prokopchuk <dmytro_prokopchuk1@xxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    Acked-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx> # 
EFI
---
 xen/arch/arm/domain.c  | 2 +-
 xen/arch/arm/setup.c   | 2 +-
 xen/arch/arm/smpboot.c | 2 +-
 xen/common/efi/boot.c  | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/xen/arch/arm/domain.c b/xen/arch/arm/domain.c
index 79a144e61b..310c578909 100644
--- a/xen/arch/arm/domain.c
+++ b/xen/arch/arm/domain.c
@@ -298,7 +298,7 @@ static void schedule_tail(struct vcpu *prev)
 extern void noreturn return_to_new_vcpu32(void);
 extern void noreturn return_to_new_vcpu64(void);
 
-static void continue_new_vcpu(struct vcpu *prev)
+static void noreturn continue_new_vcpu(struct vcpu *prev)
 {
     current->arch.actlr = READ_SYSREG(ACTLR_EL1);
     processor_vcpu_initialise(current);
diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
index 27bd3f5a6e..bb35afe56c 100644
--- a/xen/arch/arm/setup.c
+++ b/xen/arch/arm/setup.c
@@ -306,7 +306,7 @@ void __init init_pdx(void)
 size_t __read_mostly dcache_line_bytes;
 
 /* C entry point for boot CPU */
-void asmlinkage __init start_xen(unsigned long fdt_paddr)
+void asmlinkage __init noreturn start_xen(unsigned long fdt_paddr)
 {
     size_t fdt_size;
     const char *cmdline;
diff --git a/xen/arch/arm/smpboot.c b/xen/arch/arm/smpboot.c
index 73de7503e9..7f3cfa812e 100644
--- a/xen/arch/arm/smpboot.c
+++ b/xen/arch/arm/smpboot.c
@@ -315,7 +315,7 @@ smp_prepare_cpus(void)
 }
 
 /* Boot the current CPU */
-void asmlinkage start_secondary(void)
+void asmlinkage noreturn start_secondary(void)
 {
     unsigned int cpuid = init_data.cpuid;
 
diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c
index df29444220..4b60bd719e 100644
--- a/xen/common/efi/boot.c
+++ b/xen/common/efi/boot.c
@@ -285,7 +285,7 @@ static bool __init match_guid(const EFI_GUID *guid1, const 
EFI_GUID *guid2)
 }
 
 /* generic routine for printing error messages */
-static void __init PrintErrMesg(const CHAR16 *mesg, EFI_STATUS ErrCode)
+static void __init noreturn PrintErrMesg(const CHAR16 *mesg, EFI_STATUS 
ErrCode)
 {
     StdOut = StdErr;
     PrintErr(mesg);
--
generated by git-patchbot for /home/xen/git/xen.git#staging