[xen staging] xen/x86: Address two misc MISRA 17.7 violations

[patchbot@xxxxxxx]

commit 58b3437bae50b835a3a9a04fe5e8d31cd115d6a3
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Tue May 21 16:22:08 2024 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue May 28 17:26:39 2024 +0100

    xen/x86: Address two misc MISRA 17.7 violations
    
    Neither text_poke() nor watchdog_setup() have their return value consulted.
    Switch them to being void.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    Release-acked-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
---
 xen/arch/x86/alternative.c | 4 ++--
 xen/arch/x86/nmi.c         | 5 ++---
 xen/include/xen/watchdog.h | 2 +-
 3 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/xen/arch/x86/alternative.c b/xen/arch/x86/alternative.c
index 2e7ba6e0b8..7824053c9d 100644
--- a/xen/arch/x86/alternative.c
+++ b/xen/arch/x86/alternative.c
@@ -155,10 +155,10 @@ void init_or_livepatch add_nops(void *insns, unsigned int 
len)
  * "noinline" to cause control flow change and thus invalidate I$ and
  * cause refetch after modification.
  */
-static void *init_or_livepatch noinline
+static void init_or_livepatch noinline
 text_poke(void *addr, const void *opcode, size_t len)
 {
-    return memcpy(addr, opcode, len);
+    memcpy(addr, opcode, len);
 }
 
 extern void *const __initdata_cf_clobber_start[];
diff --git a/xen/arch/x86/nmi.c b/xen/arch/x86/nmi.c
index f6329cb027..9793fa2316 100644
--- a/xen/arch/x86/nmi.c
+++ b/xen/arch/x86/nmi.c
@@ -464,12 +464,12 @@ bool watchdog_enabled(void)
     return !atomic_read(&watchdog_disable_count);
 }
 
-int __init watchdog_setup(void)
+void __init watchdog_setup(void)
 {
     unsigned int cpu;
 
     /*
-     * Activate periodic heartbeats. We cannot do this earlier during 
+     * Activate periodic heartbeats. We cannot do this earlier during
      * setup because the timer infrastructure is not available.
      */
     for_each_online_cpu ( cpu )
@@ -477,7 +477,6 @@ int __init watchdog_setup(void)
     register_cpu_notifier(&cpu_nmi_nfb);
 
     watchdog_enable();
-    return 0;
 }
 
 /* Returns false if this was not a watchdog NMI, true otherwise */
diff --git a/xen/include/xen/watchdog.h b/xen/include/xen/watchdog.h
index 86fde0884a..4c2840bd91 100644
--- a/xen/include/xen/watchdog.h
+++ b/xen/include/xen/watchdog.h
@@ -12,7 +12,7 @@
 #ifdef CONFIG_WATCHDOG
 
 /* Try to set up a watchdog. */
-int watchdog_setup(void);
+void watchdog_setup(void);
 
 /* Enable the watchdog. */
 void watchdog_enable(void);
--
generated by git-patchbot for /home/xen/git/xen.git#staging