-Wflex-array-member-not-at-end was introduced in GCC-14, and we are getting ready to enable it, globally. Use the `DEFINE_RAW_FLEX()` helper for an on-stack definition of a flexible structure where the size of the flexible-array member is known at compile-time, and refactor the rest of the code, accordingly. So, with these changes, fix the following warning: drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c:39:40: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx> --- This looks pretty much like the following patch for RTC: https://lore.kernel.org/linux-hardening/Z9PpPg06OK8ghNvm@kspp/ Thanks .../cros_ec_sensors/cros_ec_sensors_core.c | 27 +++++++------------ 1 file changed, 10 insertions(+), 17 deletions(-) diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c index 7751d6f69b12..760a07f64390 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c @@ -34,25 +34,18 @@ static int cros_ec_get_host_cmd_version_mask(struct cros_ec_device *ec_dev, u16 cmd_offset, u16 cmd, u32 *mask) { + DEFINE_RAW_FLEX(struct cros_ec_command, buf, data, + sizeof(struct ec_response_get_cmd_versions)); int ret; - struct { - struct cros_ec_command msg; - union { - struct ec_params_get_cmd_versions params; - struct ec_response_get_cmd_versions resp; - }; - } __packed buf = { - .msg = { - .command = EC_CMD_GET_CMD_VERSIONS + cmd_offset, - .insize = sizeof(struct ec_response_get_cmd_versions), - .outsize = sizeof(struct ec_params_get_cmd_versions) - }, - .params = {.cmd = cmd} - }; - - ret = cros_ec_cmd_xfer_status(ec_dev, &buf.msg); + + buf->command = EC_CMD_GET_CMD_VERSIONS + cmd_offset; + buf->insize = sizeof(struct ec_response_get_cmd_versions); + buf->outsize = sizeof(struct ec_params_get_cmd_versions); + ((struct ec_params_get_cmd_versions *)buf->data)->cmd = cmd; + + ret = cros_ec_cmd_xfer_status(ec_dev, buf); if (ret >= 0) - *mask = buf.resp.version_mask; + *mask = ((struct ec_response_get_cmd_versions *)buf->data)->version_mask; return ret; } -- 2.43.0
