On Jan 19, 2021, at 1:55 PM, Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote: > > Luk recently was working on better support of packed structs (which have > been a known issue for a while) but I doubt that will help here. I tried using packed struct attributes instead of the pragma and no luck there either: centos(~)[0]% diff -u pack.c pack2.c --- pack.c 2021-01-19 17:16:13.258512270 +0000 +++ pack2.c 2021-01-19 20:49:45.886696658 +0000 @@ -6,9 +6,8 @@ #define __le16 uint16_t #define __le32 uint32_t -#pragma pack(1) /* Run PHY Activity (0x0626) */ -struct i40e_aqc_run_phy_activity { +struct __attribute__((packed)) i40e_aqc_run_phy_activity { u8 cmd_flags; __le16 activity_id; #define I40E_AQ_RUN_PHY_ACT_ID_USR_DFND 0x10 @@ -31,7 +30,6 @@ } resp; } params; }; -#pragma pack() #define I40E_CHECK_STRUCT_LEN(n, X) enum i40e_static_assert_enum_##X \ { i40e_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } centos(~)[1]% Dan