diff options
| author | Kevin Bowling <kbowling@FreeBSD.org> | 2026-08-11 19:00:51 +0000 |
|---|---|---|
| committer | Kevin Bowling <kbowling@FreeBSD.org> | 2026-08-11 20:59:32 +0000 |
| commit | a86d65b2c99bab3fe46389b3b51ad27956dccfe9 (patch) | |
| tree | 2b92c3d0f5823e03017770e64d152278f4c3d1f1 | |
| parent | a09034d561cbb3792ecc0146b41d4794ab3bda37 (diff) | |
e1000: 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/e1000/e1000_mac.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/e1000/e1000_mac.c b/sys/dev/e1000/e1000_mac.c index eb2c29d153dc..46e91773c126 100644 --- a/sys/dev/e1000/e1000_mac.c +++ b/sys/dev/e1000/e1000_mac.c @@ -611,7 +611,7 @@ void e1000_update_mc_addr_list_generic(struct e1000_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 += (ETHER_ADDR_LEN); } |