diff options
| author | Kevin Bowling <kbowling@FreeBSD.org> | 2026-08-11 19:27:35 +0000 |
|---|---|---|
| committer | Kevin Bowling <kbowling@FreeBSD.org> | 2026-08-11 20:59:32 +0000 |
| commit | 275ca86f6abffc4ee6e52a6daab06f5e5c21aa05 (patch) | |
| tree | 21dc705b449b8cd30b72ed1c0779d422691d6ccf | |
| parent | b1da641d23a95c4e7f61b7a546938ec8fceb47e7 (diff) | |
igc: Avoid a signed multicast bitmap shift
The multicast hash bit can be 31. Use an unsigned value so setting the
bit cannot shift a signed integer into its sign bit.
MFC after: 2 weeks
| -rw-r--r-- | sys/dev/igc/igc_mac.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/igc/igc_mac.c b/sys/dev/igc/igc_mac.c index 2afba299e147..6a00867c7a8e 100644 --- a/sys/dev/igc/igc_mac.c +++ b/sys/dev/igc/igc_mac.c @@ -387,7 +387,7 @@ void igc_update_mc_addr_list_generic(struct igc_hw *hw, hash_reg = (hash_value >> 5) & (hw->mac.mta_reg_count - 1); hash_bit = hash_value & 0x1F; - hw->mac.mta_shadow[hash_reg] |= (1 << hash_bit); + hw->mac.mta_shadow[hash_reg] |= 1U << hash_bit; mc_addr_list += (ETH_ADDR_LEN); } |