From: Kees Cook <k...@kernel.org> [ Upstream commit 1c3dfc7c6b0f551fdca3f7c1f1e4c73be8adb17d ]
When a character array without a terminating NUL character has a static initializer, GCC 15's -Wunterminated-string-initialization will only warn if the array lacks the "nonstring" attribute[1]. Mark the arrays with __nonstring to and correctly identify the char array as "not a C string" and thereby eliminate the warning. Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117178 [1] Cc: Juergen Gross <jgr...@suse.com> Cc: Stefano Stabellini <sstabell...@kernel.org> Cc: Oleksandr Tyshchenko <oleksandr_tyshche...@epam.com> Cc: xen-devel@lists.xenproject.org Signed-off-by: Kees Cook <k...@kernel.org> Acked-by: Juergen Gross <jgr...@suse.com> Message-ID: <20250310222234.work.473-k...@kernel.org> Signed-off-by: Juergen Gross <jgr...@suse.com> Signed-off-by: Sasha Levin <sas...@kernel.org> --- include/xen/interface/xen-mca.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/xen/interface/xen-mca.h b/include/xen/interface/xen-mca.h index 7483a78d24251..20a3b320d1a58 100644 --- a/include/xen/interface/xen-mca.h +++ b/include/xen/interface/xen-mca.h @@ -371,7 +371,7 @@ struct xen_mce { #define XEN_MCE_LOG_LEN 32 struct xen_mce_log { - char signature[12]; /* "MACHINECHECK" */ + char signature[12] __nonstring; /* "MACHINECHECK" */ unsigned len; /* = XEN_MCE_LOG_LEN */ unsigned next; unsigned flags; -- 2.39.5
