ixgbe: fix ixgbe_orom_civd_info struct layout

JIRA: https://issues.redhat.com/browse/RHEL-117603

commit ed913b3
Author: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Date:   Thu Jul 31 14:45:33 2025 +0200

    ixgbe: fix ixgbe_orom_civd_info struct layout

    The current layout of struct ixgbe_orom_civd_info causes incorrect data
    storage due to compiler-inserted padding. This results in issues when
    writing OROM data into the structure.

    Add the __packed attribute to ensure the structure layout matches the
    expected binary format without padding.

    Fixes: 70db078 ("ixgbe: read the OROM version information")
    Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
    Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
    Reviewed-by: Simon Horman <horms@kernel.org>
    Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
    Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

Signed-off-by: CKI Backport Bot <cki-ci-bot+cki-gitlab-backport-bot@redhat.com>

Author: CKI Backport Bot

drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c

@@ -3094,7 +3094,7 @@ static int ixgbe_get_orom_ver_info(struct ixgbe_hw *hw,
 	if (err)
 		return err;
 
-	combo_ver = le32_to_cpu(civd.combo_ver);
+	combo_ver = get_unaligned_le32(&civd.combo_ver);
 
 	orom->major = (u8)FIELD_GET(IXGBE_OROM_VER_MASK, combo_ver);
 	orom->patch = (u8)FIELD_GET(IXGBE_OROM_VER_PATCH_MASK, combo_ver);

drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h

@@ -1136,7 +1136,7 @@ struct ixgbe_orom_civd_info {
 	__le32 combo_ver;	/* Combo Image Version number */
 	u8 combo_name_len;	/* Length of the unicode combo image version string, max of 32 */
 	__le16 combo_name[32];	/* Unicode string representing the Combo Image version */
-};
+} __packed;
 
 /* Function specific capabilities */
 struct ixgbe_hw_func_caps {