Hi Dongliang, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.14-rc5 next-20210809] [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/Dongliang-Mu/ipack-tpci200-fix-m... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 36a21d51725af2ce0700c6ebcb6b9594aac658a6 config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 10.3.0 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/aab1c45ab3f37910ebb6f00f951c74ee8... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Dongliang-Mu/ipack-tpci200-fix-many-double-free-issues-in-tpci200_pci_probe/20210809-223416 git checkout aab1c45ab3f37910ebb6f00f951c74ee88e25094 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/ipack/carriers/ 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 >>): In file included from include/linux/io.h:13, from include/linux/irq.h:20, from arch/ia64/include/asm/hardirq.h:19, from include/linux/hardirq.h:11, from include/linux/interrupt.h:11, from include/linux/pci.h:38, from drivers/ipack/carriers/tpci200.h:14, from drivers/ipack/carriers/tpci200.c:12: drivers/ipack/carriers/tpci200.c: In function 'tpci200_unregister': 268 | #define iounmap iounmap | ^~~~~~~ drivers/ipack/carriers/tpci200.c:91:2: note: in expansion of macro 'iounmap' 91 | iounmap(tpci200->info->pdev, tpci200->info->interface_regs); | ^~~~~~~ arch/ia64/include/asm/io.h:260:13: note: declared here 260 | extern void iounmap (volatile void __iomem *addr); | ^~~~~~~ vim +/iounmap +268 arch/ia64/include/asm/io.h ffc45571dfb4b7 include/asm-ia64/io.h Aron Griffis 2006-10-17 257 e9b0a0712148ab include/asm-ia64/io.h Bjorn Helgaas 2006-03-26 258 extern void __iomem * ioremap(unsigned long offset, unsigned long size); fded1829a24b34 arch/ia64/include/asm/io.h Christoph Hellwig 2019-08-11 259 extern void __iomem * ioremap_uc(unsigned long offset, unsigned long size); 9b50ffb0c0281b include/asm-ia64/io.h Bjorn Helgaas 2007-03-30 260 extern void iounmap (volatile void __iomem *addr); 6d5bbf00d251cc arch/ia64/include/asm/io.h Len Brown 2011-01-07 261 static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned long size) 6d5bbf00d251cc arch/ia64/include/asm/io.h Len Brown 2011-01-07 262 { 6d5bbf00d251cc arch/ia64/include/asm/io.h Len Brown 2011-01-07 263 return ioremap(phys_addr, size); 6d5bbf00d251cc arch/ia64/include/asm/io.h Len Brown 2011-01-07 264 } 0bbf47eab46975 arch/ia64/include/asm/io.h Arnd Bergmann 2018-07-25 265 #define ioremap ioremap 92281dee825f6d arch/ia64/include/asm/io.h Dan Williams 2015-08-10 266 #define ioremap_cache ioremap_cache fded1829a24b34 arch/ia64/include/asm/io.h Christoph Hellwig 2019-08-11 267 #define ioremap_uc ioremap_uc 0bbf47eab46975 arch/ia64/include/asm/io.h Arnd Bergmann 2018-07-25 @268 #define iounmap iounmap ^1da177e4c3f41 include/asm-ia64/io.h Linus Torvalds 2005-04-16 269 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org