Re: [Intel-wired-lan] [PATCH 4/4] igc: drop checksum constant cast to u16 in comparisons

[Simon Horman]

On Tue, Jun 24, 2025 at 09:31:08PM +0200, Jacek Kowalski wrote:
> Signed-off-by: Jacek Kowalski <ja...@jacekk.info>
> Suggested-by: Simon Horman <ho...@kernel.org>
> ---
>  drivers/net/ethernet/intel/igc/igc_nvm.c | 2 +-

I think we should add this:

diff --git a/drivers/net/ethernet/intel/igc/igc_nvm.c 
b/drivers/net/ethernet/intel/igc/igc_nvm.c
index c4fb35071636..a47b8d39238c 100644
--- a/drivers/net/ethernet/intel/igc/igc_nvm.c
+++ b/drivers/net/ethernet/intel/igc/igc_nvm.c
@@ -155,7 +155,7 @@ s32 igc_update_nvm_checksum(struct igc_hw *hw)
                }
                checksum += nvm_data;
        }
-       checksum = (u16)NVM_SUM - checksum;
+       checksum = NVM_SUM - checksum;
        ret_val = hw->nvm.ops.write(hw, NVM_CHECKSUM_REG, 1, &checksum);
        if (ret_val)
                hw_dbg("NVM Write Error while updating checksum.\n");