generic: routerboot sysfs: move tag_show_u32()

[openwrt/staging/noltari.git] / target / linux / generic / files / drivers / platform / mikrotik / routerboot.c

diff --git a/target/linux/generic/files/drivers/platform/mikrotik/routerboot.c b/target/linux/generic/files/drivers/platform/mikrotik/routerboot.c
index f496dd7e0c766b2ae08e3daaf687c836742eb174..47e4471f8e3108d8b9d04a1b465a1b8cfa44c382 100644 (file)
--- a/target/linux/generic/files/drivers/platform/mikrotik/routerboot.c
+++ b/target/linux/generic/files/drivers/platform/mikrotik/routerboot.c
@@ -191,6 +191,25 @@ ssize_t routerboot_tag_show_string(const u8 *pld, u16 pld_len, char *buf)
        return scnprintf(buf, pld_len+1, "%s\n", pld);
 }
 
+ssize_t routerboot_tag_show_u32s(const u8 *pld, u16 pld_len, char *buf)
+{
+       char *out = buf;
+       u32 data;       // cpu-endian
+
+       /* Caller ensures pld_len > 0 */
+       if (pld_len % sizeof(data))
+               return -EINVAL;
+
+       data = *(u32 *)pld;
+
+       do {
+               out += sprintf(out, "0x%08x\n", data);
+               data++;
+       } while ((pld_len -= sizeof(data)));
+
+       return out - buf;
+}
+
 module_init(routerboot_init);
 module_exit(routerboot_exit);