[jlayton:ceph-fscrypt 57/57] net/ceph/messenger_v2.c:1787:5: error: incomplete definition of type 'struct cepn_connection'

From: kernel test robot
Date: Fri Feb 11 2022 - 02:06:38 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git ceph-fscrypt
head: adf69efebc954db1aa7af7b93febbc2a1b51dc6c
commit: adf69efebc954db1aa7af7b93febbc2a1b51dc6c [57/57] libceph: define a structure to track SPARSE_READ reply processing
config: i386-randconfig-a015 (https://download.01.org/0day-ci/archive/20220211/202202111558.NeRjba8E-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project f6685f774697c85d6a352dcea013f46a99f9fe31)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git/commit/?id=adf69efebc954db1aa7af7b93febbc2a1b51dc6c
git remote add jlayton https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git
git fetch --no-tags jlayton ceph-fscrypt
git checkout adf69efebc954db1aa7af7b93febbc2a1b51dc6c
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash net/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

net/ceph/messenger_v2.c:1783:37: warning: declaration of 'struct cepn_connection' will not be visible outside of this function [-Wvisibility]
static int prepare_read_data(struct cepn_connection *con)
^
>> net/ceph/messenger_v2.c:1787:5: error: incomplete definition of type 'struct cepn_connection'
con->in_data_crc = -1;
~~~^
net/ceph/messenger_v2.c:1783:37: note: forward declaration of 'struct cepn_connection'
static int prepare_read_data(struct cepn_connection *con)
^
net/ceph/messenger_v2.c:1788:47: error: incomplete definition of type 'struct cepn_connection'
ret = prepare_read_data_len(con, data_len(con->in_msg));
~~~^
net/ceph/messenger_v2.c:1783:37: note: forward declaration of 'struct cepn_connection'
static int prepare_read_data(struct cepn_connection *con)
^
net/ceph/messenger_v2.c:1790:6: error: incomplete definition of type 'struct cepn_connection'
con->v2.in_state = IN_S_PREPARE_READ_DATA_CONT;
~~~^
net/ceph/messenger_v2.c:1783:37: note: forward declaration of 'struct cepn_connection'
static int prepare_read_data(struct cepn_connection *con)
^
>> net/ceph/messenger_v2.c:1842:24: error: use of undeclared identifier 'iter'
if (!iov_iter_is_bvec(iter))
^
>> net/ceph/messenger_v2.c:1881:10: error: implicit declaration of function 'handle_epilogue' [-Werror,-Wimplicit-function-declaration]
return handle_epilogue(con);
^
net/ceph/messenger_v2.c:1881:10: note: did you mean 'decode_epilogue'?
net/ceph/messenger_v2.c:573:12: note: 'decode_epilogue' declared here
static int decode_epilogue(void *p, u32 *front_crc, u32 *middle_crc,
^
net/ceph/messenger_v2.c:1898:24: error: use of undeclared identifier 'iter'
if (!iov_iter_is_kvec(iter))
^
>> net/ceph/messenger_v2.c:1951:28: error: incompatible pointer types passing 'struct ceph_connection *' to parameter of type 'struct cepn_connection *' [-Werror,-Wincompatible-pointer-types]
return prepare_read_data(con);
^~~
net/ceph/messenger_v2.c:1783:54: note: passing argument to parameter 'con' here
static int prepare_read_data(struct cepn_connection *con)
^
net/ceph/messenger_v2.c:2938:12: error: static declaration of 'handle_epilogue' follows non-static declaration
static int handle_epilogue(struct ceph_connection *con)
^
net/ceph/messenger_v2.c:1881:10: note: previous implicit declaration is here
return handle_epilogue(con);
^
net/ceph/messenger_v2.c:3012:28: error: incompatible pointer types passing 'struct ceph_connection *' to parameter of type 'struct cepn_connection *' [-Werror,-Wincompatible-pointer-types]
ret = prepare_read_data(con);
^~~
net/ceph/messenger_v2.c:1783:54: note: passing argument to parameter 'con' here
static int prepare_read_data(struct cepn_connection *con)
^
>> net/ceph/messenger_v2.c:3014:8: error: use of undeclared identifier 'IN_S_PREPARE_READ_SPARSE_DATA'
case IN_S_PREPARE_READ_SPARSE_DATA:
^
1 warning and 10 errors generated.

vim +1787 net/ceph/messenger_v2.c

1782
1783 static int prepare_read_data(struct cepn_connection *con)
1784 {
1785 int ret;
1786
> 1787 con->in_data_crc = -1;
1788 ret = prepare_read_data_len(con, data_len(con->in_msg));
1789 if (ret == 0)
1790 con->v2.in_state = IN_S_PREPARE_READ_DATA_CONT;
1791 return ret;
1792 }
1793
1794 static void prepare_read_data_cont(struct ceph_connection *con)
1795 {
1796 struct bio_vec bv;
1797
1798 if (ceph_test_opt(from_msgr(con->msgr), RXBOUNCE)) {
1799 con->in_data_crc = crc32c(con->in_data_crc,
1800 page_address(con->bounce_page),
1801 con->v2.in_bvec.bv_len);
1802
1803 get_bvec_at(&con->v2.in_cursor, &bv);
1804 memcpy_to_page(bv.bv_page, bv.bv_offset,
1805 page_address(con->bounce_page),
1806 con->v2.in_bvec.bv_len);
1807 } else {
1808 con->in_data_crc = ceph_crc32c_page(con->in_data_crc,
1809 con->v2.in_bvec.bv_page,
1810 con->v2.in_bvec.bv_offset,
1811 con->v2.in_bvec.bv_len);
1812 }
1813
1814 ceph_msg_data_advance(&con->v2.in_cursor, con->v2.in_bvec.bv_len);
1815 if (con->v2.in_cursor.total_resid) {
1816 get_bvec_at(&con->v2.in_cursor, &bv);
1817 if (ceph_test_opt(from_msgr(con->msgr), RXBOUNCE)) {
1818 bv.bv_page = con->bounce_page;
1819 bv.bv_offset = 0;
1820 }
1821 set_in_bvec(con, &bv);
1822 WARN_ON(con->v2.in_state != IN_S_PREPARE_READ_DATA_CONT);
1823 return;
1824 }
1825
1826 /*
1827 * We've read all data. Prepare to read epilogue.
1828 */
1829 reset_in_kvecs(con);
1830 add_in_kvec(con, con->v2.in_buf, CEPH_EPILOGUE_PLAIN_LEN);
1831 con->v2.in_state = IN_S_HANDLE_EPILOGUE;
1832 }
1833
1834 static int prepare_sparse_read_data_cont(struct ceph_connection *con)
1835 {
1836 int ret;
1837 struct bio_vec bv;
1838 char *buf = NULL;
1839 struct iov_iter *in_iter = &con->v2.in_iter;
1840 u64 off = 0, len = 0;
1841
> 1842 if (!iov_iter_is_bvec(iter))
1843 return -EIO;
1844
1845 if (ceph_test_opt(from_msgr(con->msgr), RXBOUNCE)) {
1846 con->in_data_crc = crc32c(con->in_data_crc,
1847 page_address(con->bounce_page),
1848 con->v2.in_bvec.bv_len);
1849
1850 get_bvec_at(&con->v2.in_cursor, &bv);
1851 memcpy_to_page(bv.bv_page, bv.bv_offset,
1852 page_address(con->bounce_page),
1853 con->v2.in_bvec.bv_len);
1854 } else {
1855 con->in_data_crc = ceph_crc32c_page(con->in_data_crc,
1856 con->v2.in_bvec.bv_page,
1857 con->v2.in_bvec.bv_offset,
1858 con->v2.in_bvec.bv_len);
1859 }
1860
1861 if (con->v2.in_cursor.total_resid) {
1862 get_bvec_at(&con->v2.in_cursor, &bv);
1863 if (ceph_test_opt(from_msgr(con->msgr), RXBOUNCE)) {
1864 bv.bv_page = con->bounce_page;
1865 bv.bv_offset = 0;
1866 }
1867 set_in_bvec(con, &bv);
1868 WARN_ON(con->v2.in_state != IN_S_PREPARE_SPARSE_DATA_CONT);
1869 return 0;
1870 }
1871
1872 /* get next extent */
1873 ret = con->ops->sparse_read(con, &off, &len, &buf);
1874 if (ret <= 0) {
1875 if (ret < 0)
1876 return ret;
1877
1878 reset_in_kvecs(con);
1879 add_in_kvec(con, con->v2.in_buf, CEPH_EPILOGUE_PLAIN_LEN);
1880 con->v2.in_state = IN_S_HANDLE_EPILOGUE;
> 1881 return handle_epilogue(con);
1882 }
1883
1884 ret = prepare_read_data_len(con, off + len);
1885 if (!ret)
1886 ceph_msg_data_advance(&con->v2.in_cursor, off);
1887 return ret;
1888 }
1889
1890 static int prepare_sparse_read_header(struct ceph_connection *con)
1891 {
1892 int ret;
1893 struct bio_vec bv;
1894 char *buf = NULL;
1895 struct iov_iter *in_iter = &con->v2.in_iter;
1896 u64 off = 0, len = 0;
1897
1898 if (!iov_iter_is_kvec(iter))
1899 return -EIO;
1900
1901 /* On first call, we have no kvec so don't compute crc */
1902 if (con->v2.in_kvec_cnt) {
1903 WARN_ON_ONCE(con->v2.in_kvec_cnt > 1);
1904 con->in_data_crc = crc32c(con->in_data_crc,
1905 con->v2.in_kvecs[0].iov_base,
1906 con->v2.in_kvecs[0].iov_len);
1907 }
1908
1909 ret = con->ops->sparse_read(con, &off, &len, &buf);
1910 if (ret < 0)
1911 return ret;
1912
1913 /* No actual data? */
1914 if (WARN_ON_ONCE(!ret))
1915 return -EIO;
1916
1917 if (!buf) {
1918 ret = prepare_read_data_len(con, off + len);
1919 if (!ret) {
1920 ceph_msg_data_advance(&con->v2.in_cursor, off);
1921 con->v2.in_state = IN_S_PREPARE_SPARSE_DATA_CONT;
1922 }
1923 return ret;
1924 }
1925
1926 WARN_ON_ONCE(con->v2.in_state != IN_S_PREPARE_SPARSE_DATA_HDR);
1927 reset_in_kvecs(con);
1928 add_in_kvec(con, buf, len);
1929 return 0;
1930 }
1931
1932 static int prepare_sparse_read_data(struct ceph_connection *con)
1933 {
1934 if (WARN_ON_ONCE(!con->ops->sparse_read))
1935 return -EOPNOTSUPP;
1936
1937 if (!con_secure(con))
1938 con->in_data_crc = -1;
1939
1940 reset_in_kvecs(con);
1941 con->v2.in_state = IN_S_PREPARE_SPARSE_DATA_HDR;
1942 return prepare_sparse_read_header(con);
1943 }
1944
1945 static int prepare_read_tail_plain(struct ceph_connection *con)
1946 {
1947 struct ceph_msg *msg = con->in_msg;
1948
1949 if (!front_len(msg) && !middle_len(msg)) {
1950 WARN_ON(!data_len(msg));
> 1951 return prepare_read_data(con);
1952 }
1953
1954 reset_in_kvecs(con);
1955 if (front_len(msg)) {
1956 add_in_kvec(con, msg->front.iov_base, front_len(msg));
1957 WARN_ON(msg->front.iov_len != front_len(msg));
1958 }
1959 if (middle_len(msg)) {
1960 add_in_kvec(con, msg->middle->vec.iov_base, middle_len(msg));
1961 WARN_ON(msg->middle->vec.iov_len != middle_len(msg));
1962 }
1963
1964 if (data_len(msg)) {
1965 if (msg->sparse_read)
1966 con->v2.in_state = IN_S_PREPARE_SPARSE_DATA;
1967 else
1968 con->v2.in_state = IN_S_PREPARE_READ_DATA;
1969 } else {
1970 add_in_kvec(con, con->v2.in_buf, CEPH_EPILOGUE_PLAIN_LEN);
1971 con->v2.in_state = IN_S_HANDLE_EPILOGUE;
1972 }
1973 return 0;
1974 }
1975

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

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