Hi Steven, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 98ac9a608dc79ba8a20cee77fe959a6dfccdaa63 commit: 1685ddbe35cd4637f7f841d5f9755dd0470bd68d MIPS: Octeon: Changes to support readq()/writeq() usage. date: 9 weeks ago config: mips-cavium_octeon_defconfig (attached as .config) compiler: mips64-linux-gnuabi64-gcc (Debian 5.4.0-6) 5.4.0 20160609 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 1685ddbe35cd4637f7f841d5f9755dd0470bd68d # save the attached .config to linux build tree make.cross ARCH=mips All errors (new ones prefixed by >>): In file included from arch/mips/include/asm/io.h:32:0, from arch/mips/include/asm/page.h:176, from arch/mips/vdso/vdso.h:26, from arch/mips/vdso/gettimeofday.c:11: arch/mips/include/asm/mach-cavium-octeon/mangle-port.h: In function '__should_swizzle_bits': >> arch/mips/include/asm/mach-cavium-octeon/mangle-port.h:19:40: error: right >> shift count >= width of type [-Werror=shift-count-overflow] unsigned long did = ((unsigned long)a >> 40) & 0xff; ^ cc1: all warnings being treated as errors vim +19 arch/mips/include/asm/mach-cavium-octeon/mangle-port.h 13 #ifdef __BIG_ENDIAN 14 15 static inline bool __should_swizzle_bits(volatile void *a) 16 { 17 extern const bool octeon_should_swizzle_table[]; 18 > 19 unsigned long did = ((unsigned long)a >> 40) & 0xff; 20 return octeon_should_swizzle_table[did]; 21 } 22 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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