From: Gustavo A. R. Silva Date: Mon, 11 Aug 2025 13:27:22 +0000 (+0900) Subject: platform/chrome: cros_ec: Avoid -Wflex-array-member-not-at-end warning X-Git-Tag: v6.18-rc1~171^2~6 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8abbbbb588f1f1bf95ae56c1531a17520ce487e2;p=thirdparty%2Fkernel%2Flinux.git platform/chrome: cros_ec: Avoid -Wflex-array-member-not-at-end warning -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 Link: https://lore.kernel.org/r/aJnvuv334M7TljoB@kspp Signed-off-by: Tzung-Bi Shih --- diff --git a/drivers/platform/chrome/cros_ec.c b/drivers/platform/chrome/cros_ec.c index fd58781a2fb7d..b1730362e399c 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));