git: b5f46655e0ce - stable/15 - ixgbe: Avoid a signed shift while assembling the PHY ID

The branch stable/15 has been updated by kbowling:

URL: https://cgit.FreeBSD.org/src/commit/?id=b5f46655e0cebb41d67178398707cebf338060ed

commit b5f46655e0cebb41d67178398707cebf338060ed
Author:     Kevin Bowling <kbowling@FreeBSD.org>
AuthorDate: 2026-08-11 19:41:07 +0000
Commit:     Kevin Bowling <kbowling@FreeBSD.org>
CommitDate: 2026-08-25 00:30:56 +0000

    ixgbe: Avoid a signed shift while assembling the PHY ID
    
    The PHY identifier word is promoted to signed int when the cast is
    applied after the shift.  Cast the 16-bit register value first so
    identifiers with their high bit set are assembled as unsigned data.
    
    (cherry picked from commit f4bf1da7bac80cbe3ec862f395c22a3c5d176312)
---
 sys/dev/ixgbe/ixgbe_phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/ixgbe/ixgbe_phy.c b/sys/dev/ixgbe/ixgbe_phy.c
index 4913afd4e6d5..4200d0cd7f68 100644
--- a/sys/dev/ixgbe/ixgbe_phy.c
+++ b/sys/dev/ixgbe/ixgbe_phy.c
@@ -434,7 +434,7 @@ s32 ixgbe_get_phy_id(struct ixgbe_hw *hw)
 				      &phy_id_high);
 
 	if (status == IXGBE_SUCCESS) {
-		hw->phy.id = (u32)(phy_id_high << 16);
+		hw->phy.id = (u32)phy_id_high << 16;
 		status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_ID_LOW,
 					      IXGBE_MDIO_PMA_PMD_DEV_TYPE,
 					      &phy_id_low);