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Subject[congwang:sk_data_ready 6/7] drivers/infiniband/sw/siw/siw_cm.c:80:20: error: incompatible function pointer types assigning to 'int (*)(struct sock *)' from 'void (struct sock *)'
tree:   https://github.com/congwang/linux.git sk_data_ready
head: 88034d522dc85744321dba24fc073608055add77
commit: 40fdf7067e658744944a0eeeaf6371220a42b34a [6/7] net: make ->sk_data_ready() return int
config: riscv-randconfig-r036-20220501 (https://download.01.org/0day-ci/archive/20220503/202205031550.1bsjlTlO-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 363b3a645a1e30011cc8da624f13dac5fd915628)
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
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://github.com/congwang/linux/commit/40fdf7067e658744944a0eeeaf6371220a42b34a
git remote add congwang https://github.com/congwang/linux.git
git fetch --no-tags congwang sk_data_ready
git checkout 40fdf7067e658744944a0eeeaf6371220a42b34a
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/infiniband/sw/siw/ net/smc/

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

All errors (new ones prefixed by >>):

>> drivers/infiniband/sw/siw/siw_cm.c:80:20: error: incompatible function pointer types assigning to 'int (*)(struct sock *)' from 'void (struct sock *)' [-Werror,-Wincompatible-function-pointer-types]
sk->sk_data_ready = siw_qp_llp_data_ready;
^ ~~~~~~~~~~~~~~~~~~~~~
1 error generated.
--
>> drivers/infiniband/sw/siw/siw_qp.c:93:5: error: conflicting types for 'siw_qp_llp_data_ready'
int siw_qp_llp_data_ready(struct sock *sk)
^
drivers/infiniband/sw/siw/siw.h:528:6: note: previous declaration is here
void siw_qp_llp_data_ready(struct sock *sk);
^
1 error generated.
--
>> net/smc/af_smc.c:762:39: error: incompatible function pointer types passing 'int (*)(struct sock *)' to parameter of type 'void (*)(struct sock *)' [-Werror,-Wincompatible-function-pointer-types]
smc_fback_forward_wakeup(smc, clcsk, smc->clcsk_data_ready);
^~~~~~~~~~~~~~~~~~~~~
net/smc/af_smc.c:724:17: note: passing argument to parameter 'clcsock_callback' here
void (*clcsock_callback)(struct sock *sk))
^
>> net/smc/af_smc.c:819:24: error: incompatible function pointer types assigning to 'int (*)(struct sock *)' from 'void (struct sock *)' [-Werror,-Wincompatible-function-pointer-types]
clcsk->sk_data_ready = smc_fback_data_ready;
^ ~~~~~~~~~~~~~~~~~~~~
2 errors generated.


vim +80 drivers/infiniband/sw/siw/siw_cm.c

6c52fdc244b5cc Bernard Metzler 2019-06-20 71
6c52fdc244b5cc Bernard Metzler 2019-06-20 72 static void siw_qp_socket_assoc(struct siw_cep *cep, struct siw_qp *qp)
6c52fdc244b5cc Bernard Metzler 2019-06-20 73 {
6c52fdc244b5cc Bernard Metzler 2019-06-20 74 struct socket *s = cep->sock;
6c52fdc244b5cc Bernard Metzler 2019-06-20 75 struct sock *sk = s->sk;
6c52fdc244b5cc Bernard Metzler 2019-06-20 76
6c52fdc244b5cc Bernard Metzler 2019-06-20 77 write_lock_bh(&sk->sk_callback_lock);
6c52fdc244b5cc Bernard Metzler 2019-06-20 78
6c52fdc244b5cc Bernard Metzler 2019-06-20 79 qp->attrs.sk = s;
6c52fdc244b5cc Bernard Metzler 2019-06-20 @80 sk->sk_data_ready = siw_qp_llp_data_ready;
6c52fdc244b5cc Bernard Metzler 2019-06-20 81 sk->sk_write_space = siw_qp_llp_write_space;
6c52fdc244b5cc Bernard Metzler 2019-06-20 82
6c52fdc244b5cc Bernard Metzler 2019-06-20 83 write_unlock_bh(&sk->sk_callback_lock);
6c52fdc244b5cc Bernard Metzler 2019-06-20 84 }
6c52fdc244b5cc Bernard Metzler 2019-06-20 85

:::::: The code at line 80 was first introduced by commit
:::::: 6c52fdc244b5ccc468006fd65a504d4ee33743c7 rdma/siw: connection management

:::::: TO: Bernard Metzler <bmt@zurich.ibm.com>
:::::: CC: Jason Gunthorpe <jgg@mellanox.com>

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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