BOOTLOADER_LABEL_SIZE
BUILD_BUG_ON(PTE_INFO_SIZE > BOOTLOADER_LABEL_SIZE);
buf = kmalloc(BOOTLOADER_LABEL_SIZE + 1, GFP_KERNEL);
wfx_sram_buf_read(wdev, WFX_BOOTLOADER_LABEL, buf, BOOTLOADER_LABEL_SIZE);
buf[BOOTLOADER_LABEL_SIZE] = 0;