-Wflex-array-member-not-at-end was introduced in GCC-14, and we are getting ready to enable it, globally.
Use the new TRAILING_OVERLAP() helper to fix the following warning: drivers/platform/chrome/cros_ec.c:106:40: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] This helper creates a union between a flexible-array member (FAM) and a set of members that would otherwise follow it. This overlays the trailing members onto the FAM while preserving the original memory layout. Signed-off-by: Gustavo A. R. Silva <gustavo...@kernel.org> --- Changes in v2: - Use the new TRAILING_OVERLAP() helper instead of DEFINE_RAW_FLEX(). v1: - Link: https://lore.kernel.org/linux-hardening/Z-apE0ZmckBjRDyx@kspp/ drivers/platform/chrome/cros_ec.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/platform/chrome/cros_ec.c b/drivers/platform/chrome/cros_ec.c index fd58781a2fb7..b1730362e399 100644 --- a/drivers/platform/chrome/cros_ec.c +++ b/drivers/platform/chrome/cros_ec.c @@ -102,14 +102,13 @@ EXPORT_SYMBOL(cros_ec_irq_thread); static int cros_ec_sleep_event(struct cros_ec_device *ec_dev, u8 sleep_event) { int ret; - struct { - struct cros_ec_command msg; + TRAILING_OVERLAP(struct cros_ec_command, msg, data, union { struct ec_params_host_sleep_event req0; struct ec_params_host_sleep_event_v1 req1; struct ec_response_host_sleep_event_v1 resp1; } u; - } __packed buf; + ) __packed buf; memset(&buf, 0, sizeof(buf)); -- 2.43.0
