[vfs:misc.compat 18/20] net/compat.c:324:27: error: incompatible type for argument 2 of 'copy_to_user'

[vfs:misc.compat 18/20] net/compat.c:324:27: error: incompatible type for argument 2 of 'copy_to_user'

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 1673 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git misc.compat
head:   bc73ff4b6ab8549dcb1a6b253b4afeae3e2f8b32
commit: e89802c72a15385e22af7acd747fc1204dbf2827 [18/20] get_compat_bpf_fprog(): don't copyin field-by-field
config: x86_64-randconfig-x006-201726 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        git checkout e89802c72a15385e22af7acd747fc1204dbf2827
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   net/compat.c: In function 'get_compat_bpf_fprog':
>> net/compat.c:324:27: error: incompatible type for argument 2 of 'copy_to_user'
     if (copy_to_user(kfprog, f, sizeof(struct sock_fprog)))
                              ^
   In file included from include/net/checksum.h:25:0,
                    from include/linux/skbuff.h:31,
                    from include/linux/icmpv6.h:4,
                    from net/compat.c:19:
   include/linux/uaccess.h:164:1: note: expected 'const void *' but argument is of type 'struct sock_fprog'
    copy_to_user(void __user *to, const void *from, unsigned long n)
    ^~~~~~~~~~~~

vim +/copy_to_user +324 net/compat.c

   318	
   319		if (copy_from_user(&f32, fprog32, sizeof(*fprog32)))
   320			return NULL;
   321		memset(&f, 0, sizeof(f));
   322		f.len = f32.len;
   323		f.filter = compat_ptr(f32.filter);
 > 324		if (copy_to_user(kfprog, f, sizeof(struct sock_fprog)))
   325			return NULL;
   326	
   327		return kfprog;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 28605 bytes --]