tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: fca4fe890ea0352f7e9e4bf33ffed287946ff59e commit: d2f92ddb1db2552c436c218a6211cf16444d8a54 [2520/4050] lib/zlib: add zlib_deflate_dfltcc_enabled() function config: s390-randconfig-a001-20191217 (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 d2f92ddb1db2552c436c218a6211cf16444d8a54 # 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 a3b396f93d1695 Mikhail Zaslonko 2019-12-11 102 a3b396f93d1695 Mikhail Zaslonko 2019-12-11 103 static inline int is_dfltcc_enabled(void) a3b396f93d1695 Mikhail Zaslonko 2019-12-11 104 { a3b396f93d1695 Mikhail Zaslonko 2019-12-11 105 uint64_t facilities[(DFLTCC_FACILITY / 64) + 1]; a3b396f93d1695 Mikhail Zaslonko 2019-12-11 106 register char r0 __asm__("r0"); a3b396f93d1695 Mikhail Zaslonko 2019-12-11 107 51dcec093ebdfe Mikhail Zaslonko 2019-12-11 108 /* Check for kernel dfltcc command line parameter */ 51dcec093ebdfe Mikhail Zaslonko 2019-12-11 109 if (zlib_dfltcc_support == ZLIB_DFLTCC_DISABLED) 51dcec093ebdfe Mikhail Zaslonko 2019-12-11 110 return 0; 51dcec093ebdfe Mikhail Zaslonko 2019-12-11 111 a3b396f93d1695 Mikhail Zaslonko 2019-12-11 112 memset(facilities, 0, sizeof(facilities)); a3b396f93d1695 Mikhail Zaslonko 2019-12-11 113 r0 = sizeof(facilities) / sizeof(facilities[0]) - 1; a3b396f93d1695 Mikhail Zaslonko 2019-12-11 @114 __asm__ volatile("stfle %[facilities]\n" a3b396f93d1695 Mikhail Zaslonko 2019-12-11 115 : [facilities] "=Q" (facilities) a3b396f93d1695 Mikhail Zaslonko 2019-12-11 116 , [r0] "+r" (r0) a3b396f93d1695 Mikhail Zaslonko 2019-12-11 117 : a3b396f93d1695 Mikhail Zaslonko 2019-12-11 118 : "cc"); a3b396f93d1695 Mikhail Zaslonko 2019-12-11 119 return is_bit_set((const char *)facilities, DFLTCC_FACILITY); a3b396f93d1695 Mikhail Zaslonko 2019-12-11 120 } a3b396f93d1695 Mikhail Zaslonko 2019-12-11 121 :::::: The code at line 114 was first introduced by commit :::::: a3b396f93d16954b6e5c5e8e8f5ebbc27f8c30cc 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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