Hi Andy, I love your patch! Perhaps something to improve: [auto build test WARNING on herbert-cryptodev-2.6/master] [also build test WARNING on herbert-crypto-2.6/master linux/master linus/master v5.17-rc4 next-20220215] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Andy-Shevchenko/crypto-cavium-ni... base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20220216/202202160202.jG0FQRzi-lk...) compiler: alpha-linux-gcc (GCC) 11.2.0 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://github.com/0day-ci/linux/commit/51e27f6f33d377023ec5e097d18acb18f... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Andy-Shevchenko/crypto-cavium-nitrox-don-t-cast-parameter-in-bit-operations/20220216-000941 git checkout 51e27f6f33d377023ec5e097d18acb18f992f551 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=alpha SHELL=/bin/bash drivers/crypto/cavium/nitrox/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/crypto/cavium/nitrox/nitrox_mbx.c: In function 'nitrox_pf2vf_mbox_handler': drivers/crypto/cavium/nitrox/nitrox_mbx.c:126:9: error: implicit declaration of function 'DEFINE_BITMAP'; did you mean 'DEFINE_IDA'? [-Werror=implicit-function-declaration] 126 | DEFINE_BITMAP(csr, 64); | ^~~~~~~~~~~~~ | DEFINE_IDA drivers/crypto/cavium/nitrox/nitrox_mbx.c:126:23: error: 'csr' undeclared (first use in this function) 126 | DEFINE_BITMAP(csr, 64); | ^~~ drivers/crypto/cavium/nitrox/nitrox_mbx.c:126:23: note: each undeclared identifier is reported only once for each function it appears in 127 | u64 value, reg_addr; | ^~~ cc1: some warnings being treated as errors vim +127 drivers/crypto/cavium/nitrox/nitrox_mbx.c cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 121 cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 122 void nitrox_pf2vf_mbox_handler(struct nitrox_device *ndev) cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 123 { cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 124 struct nitrox_vfdev *vfdev; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 125 struct pf2vf_work *pfwork; 51e27f6f33d377 Andy Shevchenko 2022-02-15 126 DEFINE_BITMAP(csr, 64); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 @127 u64 value, reg_addr; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 128 u32 i; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 129 int vfno; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 130 cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 131 /* loop for VF(0..63) */ cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 132 reg_addr = NPS_PKT_MBOX_INT_LO; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 133 value = nitrox_read_csr(ndev, reg_addr); 51e27f6f33d377 Andy Shevchenko 2022-02-15 134 bitmap_from_u64(csr, value); 51e27f6f33d377 Andy Shevchenko 2022-02-15 135 for_each_set_bit(i, csr, BITS_PER_TYPE(csr)) { cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 136 /* get the vfno from ring */ cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 137 vfno = RING_TO_VFNO(i, ndev->iov.max_vf_queues); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 138 vfdev = ndev->iov.vfdev + vfno; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 139 vfdev->ring = i; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 140 /* fill the vf mailbox data */ cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 141 vfdev->msg.value = pf2vf_read_mbox(ndev, vfdev->ring); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 142 pfwork = kzalloc(sizeof(*pfwork), GFP_ATOMIC); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 143 if (!pfwork) cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 144 continue; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 145 cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 146 pfwork->vfdev = vfdev; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 147 pfwork->ndev = ndev; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 148 INIT_WORK(&pfwork->pf2vf_resp, pf2vf_resp_handler); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 149 queue_work(ndev->iov.pf2vf_wq, &pfwork->pf2vf_resp); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 150 /* clear the corresponding vf bit */ cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 151 nitrox_write_csr(ndev, reg_addr, BIT_ULL(i)); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 152 } cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 153 cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 154 /* loop for VF(64..127) */ cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 155 reg_addr = NPS_PKT_MBOX_INT_HI; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 156 value = nitrox_read_csr(ndev, reg_addr); 51e27f6f33d377 Andy Shevchenko 2022-02-15 157 bitmap_from_u64(csr, value); 51e27f6f33d377 Andy Shevchenko 2022-02-15 158 for_each_set_bit(i, csr, BITS_PER_TYPE(csr)) { cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 159 /* get the vfno from ring */ cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 160 vfno = RING_TO_VFNO(i + 64, ndev->iov.max_vf_queues); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 161 vfdev = ndev->iov.vfdev + vfno; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 162 vfdev->ring = (i + 64); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 163 /* fill the vf mailbox data */ cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 164 vfdev->msg.value = pf2vf_read_mbox(ndev, vfdev->ring); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 165 cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 166 pfwork = kzalloc(sizeof(*pfwork), GFP_ATOMIC); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 167 if (!pfwork) cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 168 continue; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 169 cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 170 pfwork->vfdev = vfdev; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 171 pfwork->ndev = ndev; cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 172 INIT_WORK(&pfwork->pf2vf_resp, pf2vf_resp_handler); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 173 queue_work(ndev->iov.pf2vf_wq, &pfwork->pf2vf_resp); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 174 /* clear the corresponding vf bit */ cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 175 nitrox_write_csr(ndev, reg_addr, BIT_ULL(i)); cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 176 } cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 177 } cf718eaa8f9b2c Srikanth, Jampala 2018-12-04 178 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org