[xen master] xen/spinlock: fix use of 0 as a null pointer constant

[patchbot@xxxxxxx]

commit 8e74432dd335ce5f2fd83a33b5243c08c7c55c86
Author:     Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
AuthorDate: Thu Oct 5 10:45:20 2023 +0200
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Oct 31 16:10:14 2023 +0000

    xen/spinlock: fix use of 0 as a null pointer constant
    
    The constant 0 is used as a null pointer constant, in
    violation of MISRA C:2012 Rule 11.9, in builds with
    CONFIG_DEBUG_LOCK_PROFILE defined.
    
    Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/include/xen/spinlock.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/include/xen/spinlock.h b/xen/include/xen/spinlock.h
index e7a1c1aa89..16d933ae7e 100644
--- a/xen/include/xen/spinlock.h
+++ b/xen/include/xen/spinlock.h
@@ -94,7 +94,7 @@ struct lock_profile_qhead {
     int32_t                   idx;     /* index for printout */
 };
 
-#define _LOCK_PROFILE(name) { 0, #name, &name, 0, 0, 0, 0, 0 }
+#define _LOCK_PROFILE(name) { NULL, #name, &name, 0, 0, 0, 0, 0 }
 #define _LOCK_PROFILE_PTR(name)                                               \
     static struct lock_profile * const __lock_profile_##name                  \
     __used_section(".lockprofile.data") =                                     \
--
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