[U-Boot] [BUG] net: nfs: -Werror=address-of-packed-member

[Heinrich Schuchardt]

Hello Joe,

GCC 9.2.1 (of Debian Bullseye) produces the warnings below when building
pine64-lts_defconfig. Is it really necessary to define struct rpc_t as
packed? The structure is composed out of uint32_t only. So shouldn't it
be naturally packed without the attribute?

net/nfs.c: In function ‘rpc_req’:
net/nfs.c:199:18: error: taking address of packed member of ‘struct
rpc_t’ may result in an unaligned pointer value
[-Werror=address-of-packed-member]
   199 |  p = (uint32_t *)&(rpc_pkt.u.call.data);
       |                  ^~~~~~~~~~~~~~~~~~~~~~
net/nfs.c: In function ‘nfs_readlink_reply’:
net/nfs.c:631:46: error: taking address of packed member of ‘struct
rpc_t’ may result in an unaligned pointer value
[-Werror=address-of-packed-member]
   631 |    nfs3_get_attributes_offset(rpc_pkt.u.reply.data);
       |                               ~~~~~~~~~~~~~~~^~~~~
   LD      drivers/block/built-in.o
net/nfs.c: In function ‘nfs_read_reply’:
net/nfs.c:692:46: error: taking address of packed member of ‘struct
rpc_t’ may result in an unaligned pointer value
[-Werror=address-of-packed-member]
   692 |    nfs3_get_attributes_offset(rpc_pkt.u.reply.data);
       |                               ~~~~~~~~~~~~~~~^~~~~

Best regards

Heinrich