tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   94db6b12c18d7cf7c5726dbe816c2248494a778d
commit: 3590918b5d07aa5e4702f753c375adb4868d3abd [4221/6614] net: ethernet: renesas: Add support for "Ethernet Switch"
config: csky-randconfig-c004-20221109
compiler: csky-linux-gcc (GCC) 12.1.0

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

cocci warnings: (new ones prefixed by >>)
>> drivers/net/ethernet/renesas/rswitch.c:1369:5-8: Unneeded variable: "ret". Return "NETDEV_TX_OK" on line 1374

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