tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 9f8535c5f75f0e23359962527dbfd31478b2cf16 commit: 6d68070ee31a360759ae6e0a6829602b68106c0d [4341/4896] lib/zlib: add zlib_deflate_dfltcc_enabled() function config: s390-randconfig-a001-20191222 (attached as .config) compiler: s390-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 6d68070ee31a360759ae6e0a6829602b68106c0d # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=s390 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): lib/zlib_deflate/../zlib_dfltcc/dfltcc_util.h: Assembler messages: >> lib/zlib_deflate/../zlib_dfltcc/dfltcc_util.h:114: Error: Unrecognized opcode: `stfle' vim +114 lib/zlib_deflate/../zlib_dfltcc/dfltcc_util.h bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 102 bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 103 static inline int is_dfltcc_enabled(void) bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 104 { bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 105 uint64_t facilities[(DFLTCC_FACILITY / 64) + 1]; bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 106 register char r0 __asm__("r0"); bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 107 a3b0e9e374737b Mikhail Zaslonko 2019-12-18 108 /* Check for kernel dfltcc command line parameter */ a3b0e9e374737b Mikhail Zaslonko 2019-12-18 109 if (zlib_dfltcc_support == ZLIB_DFLTCC_DISABLED) a3b0e9e374737b Mikhail Zaslonko 2019-12-18 110 return 0; a3b0e9e374737b Mikhail Zaslonko 2019-12-18 111 bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 112 memset(facilities, 0, sizeof(facilities)); bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 113 r0 = sizeof(facilities) / sizeof(facilities[0]) - 1; bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 @114 __asm__ volatile("stfle %[facilities]\n" bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 115 : [facilities] "=Q" (facilities) bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 116 , [r0] "+r" (r0) bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 117 : bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 118 : "cc"); bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 119 return is_bit_set((const char *)facilities, DFLTCC_FACILITY); bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 120 } bcb6b8aba4b81f Mikhail Zaslonko 2019-12-18 121 :::::: The code at line 114 was first introduced by commit :::::: bcb6b8aba4b81f43f6cfa308a9e616bb4acfef7e lib/zlib: add s390 hardware support for kernel zlib_deflate :::::: TO: Mikhail Zaslonko <zaslonko@xxxxxxxxxxxxx> :::::: CC: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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