[alibaba-cloud:ck-4.19.91 54/100] include/linux/socket.h:380:38: warning: 'struct file' declared inside parameter list will not be visible outside of this definition or declaration

[alibaba-cloud:ck-4.19.91 54/100] include/linux/socket.h:380:38: warning: 'struct file' declared inside parameter list will not be visible outside of this definition or declaration

[kbuild test robot]

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tree:   https://github.com/alibaba/cloud-kernel.git ck-4.19.91
head:   536f70b41d6fc5fc46f50c4caa012c4439160180
commit: d7d134b731d896b5f97303bb86f44c699023856d [54/100] net: add __sys_accept4_file() helper
config: parisc-randconfig-a001-20200211 (attached as .config)
compiler: hppa-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout d7d134b731d896b5f97303bb86f44c699023856d
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=parisc 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   In file included from include/linux/compat.h:15:0,
                    from drivers/hid/uhid.c:14:
>> include/linux/socket.h:380:38: warning: 'struct file' declared inside parameter list will not be visible outside of this definition or declaration
    extern int __sys_accept4_file(struct file *file, unsigned file_flags,
                                         ^~~~

vim +380 include/linux/socket.h

   353	
   354	/* The __sys_...msg variants allow MSG_CMSG_COMPAT iff
   355	 * forbid_cmsg_compat==false
   356	 */
   357	extern long __sys_recvmsg(int fd, struct user_msghdr __user *msg,
   358				  unsigned int flags, bool forbid_cmsg_compat);
   359	extern long __sys_sendmsg(int fd, struct user_msghdr __user *msg,
   360				  unsigned int flags, bool forbid_cmsg_compat);
   361	extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
   362				  unsigned int flags, struct timespec *timeout);
   363	extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg,
   364				  unsigned int vlen, unsigned int flags,
   365				  bool forbid_cmsg_compat);
   366	extern long __sys_sendmsg_sock(struct socket *sock,
   367				       struct user_msghdr __user *msg,
   368				       unsigned int flags);
   369	extern long __sys_recvmsg_sock(struct socket *sock,
   370				       struct user_msghdr __user *msg,
   371				       unsigned int flags);
   372	
   373	/* helpers which do the actual work for syscalls */
   374	extern int __sys_recvfrom(int fd, void __user *ubuf, size_t size,
   375				  unsigned int flags, struct sockaddr __user *addr,
   376				  int __user *addr_len);
   377	extern int __sys_sendto(int fd, void __user *buff, size_t len,
   378				unsigned int flags, struct sockaddr __user *addr,
   379				int addr_len);
 > 380	extern int __sys_accept4_file(struct file *file, unsigned file_flags,
   381				struct sockaddr __user *upeer_sockaddr,
   382				 int __user *upeer_addrlen, int flags);
   383	extern int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr,
   384				 int __user *upeer_addrlen, int flags);
   385	extern int __sys_socket(int family, int type, int protocol);
   386	extern int __sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
   387	extern int __sys_connect(int fd, struct sockaddr __user *uservaddr,
   388				 int addrlen);
   389	extern int __sys_listen(int fd, int backlog);
   390	extern int __sys_getsockname(int fd, struct sockaddr __user *usockaddr,
   391				     int __user *usockaddr_len);
   392	extern int __sys_getpeername(int fd, struct sockaddr __user *usockaddr,
   393				     int __user *usockaddr_len);
   394	extern int __sys_socketpair(int family, int type, int protocol,
   395				    int __user *usockvec);
   396	extern int __sys_shutdown(int fd, int how);
   397	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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