[PATCH 2/3] Revert "UAPI: ethtool: Use __struct_group() in struct ethtool_link_settings"

[Kees Cook]

This reverts commit 43d3487035e9a86fad952de4240a518614240d43. We cannot
use tagged struct groups in UAPI because C++ will throw syntax errors
even under "extern C".

Signed-off-by: Kees Cook <k...@kernel.org>
---
Cc: "Gustavo A. R. Silva" <gustavo...@kernel.org>
---
 include/uapi/linux/ethtool.h | 33 +++++++++++++++------------------
 1 file changed, 15 insertions(+), 18 deletions(-)

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index fc1f54b065f9..c405ed63acfa 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -2511,24 +2511,21 @@ enum ethtool_reset_flags {
  *     autonegotiation; 0 if unknown or not applicable.  Read-only.
  */
 struct ethtool_link_settings {
-       /* New members MUST be added within the __struct_group() macro below. */
-       __struct_group(ethtool_link_settings_hdr, hdr, /* no attrs */,
-               __u32   cmd;
-               __u32   speed;
-               __u8    duplex;
-               __u8    port;
-               __u8    phy_address;
-               __u8    autoneg;
-               __u8    mdio_support;
-               __u8    eth_tp_mdix;
-               __u8    eth_tp_mdix_ctrl;
-               __s8    link_mode_masks_nwords;
-               __u8    transceiver;
-               __u8    master_slave_cfg;
-               __u8    master_slave_state;
-               __u8    rate_matching;
-               __u32   reserved[7];
-       );
+       __u32   cmd;
+       __u32   speed;
+       __u8    duplex;
+       __u8    port;
+       __u8    phy_address;
+       __u8    autoneg;
+       __u8    mdio_support;
+       __u8    eth_tp_mdix;
+       __u8    eth_tp_mdix_ctrl;
+       __s8    link_mode_masks_nwords;
+       __u8    transceiver;
+       __u8    master_slave_cfg;
+       __u8    master_slave_state;
+       __u8    rate_matching;
+       __u32   reserved[7];
        __u32   link_mode_masks[];
        /* layout of link_mode_masks fields:
         * __u32 map_supported[link_mode_masks_nwords];
-- 
2.34.1