net: txgbe: remove unused buffer in txgbe_calc_eeprom_checksum

Half a year passed since commit 049fe5365324c ("net: txgbe: Add operations
to interact with firmware") was submitted, the buffer in
txgbe_calc_eeprom_checksum was not used. So remove it and the related
branch codes.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306200242.FXsHokaJ-lkp@intel.com/
Reviewed-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230620062519.1575298-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c
index ebc46f3..12405d7 100644 (file)
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c
@@ -160,34 +160,24 @@ int txgbe_read_pba_string(struct wx *wx, u8 *pba_num, u32 pba_num_size)
 static int txgbe_calc_eeprom_checksum(struct wx *wx, u16 *checksum)
 {
        u16 *eeprom_ptrs = NULL;
-       u32 buffer_size = 0;
-       u16 *buffer = NULL;
        u16 *local_buffer;
        int status;
        u16 i;
 
        wx_init_eeprom_params(wx);
 
-       if (!buffer) {
-               eeprom_ptrs = kvmalloc_array(TXGBE_EEPROM_LAST_WORD, sizeof(u16),
-                                            GFP_KERNEL);
-               if (!eeprom_ptrs)
-                       return -ENOMEM;
-               /* Read pointer area */
-               status = wx_read_ee_hostif_buffer(wx, 0,
-                                                 TXGBE_EEPROM_LAST_WORD,
-                                                 eeprom_ptrs);
-               if (status != 0) {
-                       wx_err(wx, "Failed to read EEPROM image\n");
-                       kvfree(eeprom_ptrs);
-                       return status;
-               }
-               local_buffer = eeprom_ptrs;
-       } else {
-               if (buffer_size < TXGBE_EEPROM_LAST_WORD)
-                       return -EFAULT;
-               local_buffer = buffer;
+       eeprom_ptrs = kvmalloc_array(TXGBE_EEPROM_LAST_WORD, sizeof(u16),
+                                    GFP_KERNEL);
+       if (!eeprom_ptrs)
+               return -ENOMEM;
+       /* Read pointer area */
+       status = wx_read_ee_hostif_buffer(wx, 0, TXGBE_EEPROM_LAST_WORD, eeprom_ptrs);
+       if (status != 0) {
+               wx_err(wx, "Failed to read EEPROM image\n");
+               kvfree(eeprom_ptrs);
+               return status;
        }
+       local_buffer = eeprom_ptrs;
 
        for (i = 0; i < TXGBE_EEPROM_LAST_WORD; i++)
                if (i != wx->eeprom.sw_region_offset + TXGBE_EEPROM_CHECKSUM)