Hi Aditya, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1c23f9e627a7b412978b4e852793c5e3c3efc555 commit: 3e58e839150db0857dfcb3a0bb3d4af4c6ac1abf scripts: kernel-doc: add warning for comment not following kernel-doc syntax date: 1 year, 5 months ago config: mips-randconfig-r016-20220821 (https://download.01.org/0day-ci/archive/20220822/202208221854.8ASrzjKa-lkp@xxxxxxxxx/config) compiler: mips-linux-gcc (GCC) 12.1.0 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e58e839150db0857dfcb3a0bb3d4af4c6ac1abf git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 3e58e839150db0857dfcb3a0bb3d4af4c6ac1abf # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> arch/mips/pci/pci-ar2315.c:6: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Both AR2315 and AR2316 chips have PCI interface unit, which supports DMA vim +6 arch/mips/pci/pci-ar2315.c 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 @6 * Both AR2315 and AR2316 chips have PCI interface unit, which supports DMA 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 7 * and interrupt. PCI interface supports MMIO access method, but does not 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 8 * seem to support I/O ports. 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 9 * 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 10 * Read/write operation in the region 0x80000000-0xBFFFFFFF causes 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 11 * a memory read/write command on the PCI bus. 30 LSBs of address on 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 12 * the bus are taken from memory read/write request and 2 MSBs are 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 13 * determined by PCI unit configuration. 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 14 * 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 15 * To work with the configuration space instead of memory is necessary set 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 16 * the CFG_SEL bit in the PCI_MISC_CONFIG register. 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 17 * 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 18 * Devices on the bus can perform DMA requests via chip BAR1. PCI host 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 19 * controller BARs are programmend as if an external device is programmed. 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 20 * Which means that during configuration, IDSEL pin of the chip should be 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 21 * asserted. 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 22 * 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 23 * We know (and support) only one board that uses the PCI interface - 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 24 * Fonera 2.0g (FON2202). It has a USB EHCI controller connected to the 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 25 * AR2315 PCI bus. IDSEL pin of USB controller is connected to AD[13] line 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 26 * and IDSEL pin of AR2315 is connected to AD[16] line. 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 27 */ 3ed7a2a702dc0f Sergey Ryazanov 2014-10-29 28 :::::: The code at line 6 was first introduced by commit :::::: 3ed7a2a702dc0f5bc44d67f27a1a289356b5dc42 MIPS: ath25: add AR2315 PCI host controller driver :::::: TO: Sergey Ryazanov <ryazanov.s.a@xxxxxxxxx> :::::: CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://01.org/lkp
