Commit 
16e47624e76b43db ("cxgb4: Add new scheme to update T4/T5 firmware")
introduced below coccinelle warning.
>> drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:994:2-8: Replace memcpy with
   struct assignment
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
                }
 
                /* Installed successfully, update the cached header too. */
-               memcpy(card_fw, fs_fw, sizeof(*card_fw));
+               *card_fw = *fs_fw;
                card_fw_usable = 1;
                *reset = 0;     /* already reset as part of load_fw */
        }