int cxl_enumerate_cmds()

in core/mbox.c [577:626]

• 38 lines of code
• 7 McCabe index (conditional complexity)

int cxl_enumerate_cmds(struct cxl_dev_state *cxlds)
{
	struct cxl_mbox_get_supported_logs *gsl;
	struct device *dev = cxlds->dev;
	struct cxl_mem_command *cmd;
	int i, rc;

	gsl = cxl_get_gsl(cxlds);
	if (IS_ERR(gsl))
		return PTR_ERR(gsl);

	rc = -ENOENT;
	for (i = 0; i < le16_to_cpu(gsl->entries); i++) {
		u32 size = le32_to_cpu(gsl->entry[i].size);
		uuid_t uuid = gsl->entry[i].uuid;
		u8 *log;

		dev_dbg(dev, "Found LOG type %pU of size %d", &uuid, size);

		if (!uuid_equal(&uuid, &log_uuid[CEL_UUID]))
			continue;

		log = kvmalloc(size, GFP_KERNEL);
		if (!log) {
			rc = -ENOMEM;
			goto out;
		}

		rc = cxl_xfer_log(cxlds, &uuid, size, log);
		if (rc) {
			kvfree(log);
			goto out;
		}

		cxl_walk_cel(cxlds, size, log);
		kvfree(log);

		/* In case CEL was bogus, enable some default commands. */
		cxl_for_each_cmd(cmd)
			if (cmd->flags & CXL_CMD_FLAG_FORCE_ENABLE)
				set_bit(cmd->info.id, cxlds->enabled_cmds);

		/* Found the required CEL */
		rc = 0;
	}

out:
	kvfree(gsl);
	return rc;
}