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: Zhenyu Wang <zhen...@linux.intel.com> Cc: Zhi Wang <zhi.wang.li...@gmail.com> Cc: Jani Nikula <jani.nik...@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.v...@intel.com> Cc: Tvrtko Ursulin <tursu...@ursulin.net> Cc: David Airlie <airl...@gmail.com> Cc: Simona Vetter <sim...@ffwll.ch> Cc: intel-gvt-...@lists.freedesktop.org Cc: intel-...@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Kees Cook <k...@kernel.org> --- drivers/gpu/drm/i915/gvt/opregion.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c index 509f9ccae3a9..f701638d3145 100644 --- a/drivers/gpu/drm/i915/gvt/opregion.c +++ b/drivers/gpu/drm/i915/gvt/opregion.c @@ -43,7 +43,7 @@ #define DEVICE_TYPE_EFP4 0x10 struct opregion_header { - u8 signature[16]; + u8 signature[16] __nonstring; u32 size; u32 opregion_ver; u8 bios_ver[32]; @@ -222,7 +222,7 @@ int intel_vgpu_init_opregion(struct intel_vgpu *vgpu) u8 *buf; struct opregion_header *header; struct vbt v; - const char opregion_signature[16] = OPREGION_SIGNATURE; + const char opregion_signature[16] __nonstring = OPREGION_SIGNATURE; gvt_dbg_core("init vgpu%d opregion\n", vgpu->id); vgpu_opregion(vgpu)->va = (void *)__get_free_pages(GFP_KERNEL | -- 2.34.1
