[kbuild-all] [sashal-linux-stable:queue-4.9 100/170] drivers/tty/serial/stm32-usart.c:180:34: error: use of undeclared identifier 'USART_CR_TC'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-4.9 head: 397027034d454e3ad94e49e88938860ee15d7de6 commit: 2d843653785d83e84dd658e7ca9643ae0a42aaa5 [100/170] serial: stm32: fix tx_empty condition config: powerpc-randconfig-r014-20210512 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a0fed635fe1701470062495a6ffee1c608f3f1bc) 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 powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c... git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git git fetch --no-tags sashal-linux-stable queue-4.9 git checkout 2d843653785d83e84dd658e7ca9643ae0a42aaa5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): unsigned int get_paca_psize(unsigned long addr) ^ arch/powerpc/mm/hash_utils_64.c:1101:1: note: declare 'static' if the function is not intended to be used outside of this translation unit unsigned int get_paca_psize(unsigned long addr) ^ static arch/powerpc/mm/hash_utils_64.c:1422:5: error: no previous prototype for function '__hash_page' [-Werror,-Wmissing-prototypes] int __hash_page(unsigned long ea, unsigned long msr, unsigned long trap, ^ arch/powerpc/mm/hash_utils_64.c:1422:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __hash_page(unsigned long ea, unsigned long msr, unsigned long trap, ^ static arch/powerpc/mm/hash_utils_64.c:1479:6: error: no previous prototype for function 'hash_preload' [-Werror,-Wmissing-prototypes] void hash_preload(struct mm_struct *mm, unsigned long ea, ^ arch/powerpc/mm/hash_utils_64.c:1479:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void hash_preload(struct mm_struct *mm, unsigned long ea, ^ static arch/powerpc/mm/hash_utils_64.c:1688:6: error: no previous prototype for function 'low_hash_fault' [-Werror,-Wmissing-prototypes] void low_hash_fault(struct pt_regs *regs, unsigned long address, int rc) ^ arch/powerpc/mm/hash_utils_64.c:1688:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void low_hash_fault(struct pt_regs *regs, unsigned long address, int rc) ^ static arch/powerpc/mm/hash_utils_64.c:1705:6: error: no previous prototype for function 'hpte_insert_repeating' [-Werror,-Wmissing-prototypes] long hpte_insert_repeating(unsigned long hash, unsigned long vpn, ^ arch/powerpc/mm/hash_utils_64.c:1705:1: note: declare 'static' if the function is not intended to be used outside of this translation unit long hpte_insert_repeating(unsigned long hash, unsigned long vpn, ^ static 5 errors generated. -- stm32_set_bits(port, ofs->icr, USART_CR_TC); ^ 1 error generated. vim +/USART_CR_TC +180 drivers/tty/serial/stm32-usart.c 48a6092fb41fab Maxime Coquelin 2015-06-10 160 3489187204eb75 Alexandre TORGUE 2016-09-15 161 static void stm32_tx_dma_complete(void *arg) 3489187204eb75 Alexandre TORGUE 2016-09-15 162 { 3489187204eb75 Alexandre TORGUE 2016-09-15 163 struct uart_port *port = arg; 3489187204eb75 Alexandre TORGUE 2016-09-15 164 struct stm32_port *stm32port = to_stm32_port(port); 3489187204eb75 Alexandre TORGUE 2016-09-15 165 struct stm32_usart_offsets *ofs = &stm32port->info->ofs; 3489187204eb75 Alexandre TORGUE 2016-09-15 166 unsigned int isr; 3489187204eb75 Alexandre TORGUE 2016-09-15 167 int ret; 3489187204eb75 Alexandre TORGUE 2016-09-15 168 3489187204eb75 Alexandre TORGUE 2016-09-15 169 ret = readl_relaxed_poll_timeout_atomic(port->membase + ofs->isr, 3489187204eb75 Alexandre TORGUE 2016-09-15 170 isr, 3489187204eb75 Alexandre TORGUE 2016-09-15 171 (isr & USART_SR_TC), 3489187204eb75 Alexandre TORGUE 2016-09-15 172 10, 100000); 3489187204eb75 Alexandre TORGUE 2016-09-15 173 3489187204eb75 Alexandre TORGUE 2016-09-15 174 if (ret) 3489187204eb75 Alexandre TORGUE 2016-09-15 175 dev_err(port->dev, "terminal count not set\n"); 3489187204eb75 Alexandre TORGUE 2016-09-15 176 3489187204eb75 Alexandre TORGUE 2016-09-15 177 if (ofs->icr == UNDEF_REG) 3489187204eb75 Alexandre TORGUE 2016-09-15 178 stm32_clr_bits(port, ofs->isr, USART_SR_TC); 3489187204eb75 Alexandre TORGUE 2016-09-15 179 else 3489187204eb75 Alexandre TORGUE 2016-09-15 @180 stm32_set_bits(port, ofs->icr, USART_CR_TC); 3489187204eb75 Alexandre TORGUE 2016-09-15 181 3489187204eb75 Alexandre TORGUE 2016-09-15 182 stm32_clr_bits(port, ofs->cr3, USART_CR3_DMAT); 3489187204eb75 Alexandre TORGUE 2016-09-15 183 stm32port->tx_dma_busy = false; 3489187204eb75 Alexandre TORGUE 2016-09-15 184 3489187204eb75 Alexandre TORGUE 2016-09-15 185 /* Let's see if we have pending data to send */ 3489187204eb75 Alexandre TORGUE 2016-09-15 186 stm32_transmit_chars(port); 3489187204eb75 Alexandre TORGUE 2016-09-15 187 } 3489187204eb75 Alexandre TORGUE 2016-09-15 188 :::::: The code at line 180 was first introduced by commit :::::: 3489187204eb75e5635d8836babfd0a18be613f4 serial: stm32: adding dma support :::::: TO: Alexandre TORGUE <alexandre.torgue(a)st.com&gt; :::::: CC: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org