tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 72cf0b07418a9c8349aa9137194b1ccba6e54a9d commit: 9012d011660ea5cf2a623e1de207a2bc0ca6936d compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING date: 4 days ago config: s390-allyesconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 9012d011660ea5cf2a623e1de207a2bc0ca6936d # save the attached .config to linux build tree GCC_VERSION=7.2.0 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 >>): In file included from arch/s390//crypto/prng.c:29:0: arch/s390/include/asm/cpacf.h: In function 'cpacf_query_func': arch/s390/include/asm/cpacf.h:170:2: warning: asm operand 3 probably doesn't match constraints asm volatile( ^~~ >> arch/s390/include/asm/cpacf.h:170:2: error: impossible constraint in 'asm' vim +/asm +170 arch/s390/include/asm/cpacf.h 69c0e360 Martin Schwidefsky 2016-08-18 154 c7d4d259 Martin Schwidefsky 2016-03-17 155 /** c7d4d259 Martin Schwidefsky 2016-03-17 156 * cpacf_query() - check if a specific CPACF function is available c7d4d259 Martin Schwidefsky 2016-03-17 157 * @opcode: the opcode of the crypto instruction c7d4d259 Martin Schwidefsky 2016-03-17 158 * @func: the function code to test for c7d4d259 Martin Schwidefsky 2016-03-17 159 * c7d4d259 Martin Schwidefsky 2016-03-17 160 * Executes the query function for the given crypto instruction @opcode c7d4d259 Martin Schwidefsky 2016-03-17 161 * and checks if @func is available c7d4d259 Martin Schwidefsky 2016-03-17 162 * c7d4d259 Martin Schwidefsky 2016-03-17 163 * Returns 1 if @func is available for @opcode, 0 otherwise c7d4d259 Martin Schwidefsky 2016-03-17 164 */ 69c0e360 Martin Schwidefsky 2016-08-18 165 static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) c7d4d259 Martin Schwidefsky 2016-03-17 166 { c7d4d259 Martin Schwidefsky 2016-03-17 167 register unsigned long r0 asm("0") = 0; /* query function */ 69c0e360 Martin Schwidefsky 2016-08-18 168 register unsigned long r1 asm("1") = (unsigned long) mask; c7d4d259 Martin Schwidefsky 2016-03-17 169 c7d4d259 Martin Schwidefsky 2016-03-17 @170 asm volatile( 1afd43e0 David Hildenbrand 2016-05-18 171 " spm 0\n" /* pckmo doesn't change the cc */ b112a2df Jason J. Herne 2017-02-21 172 /* Parameter regs are ignored, but must be nonzero and unique */ b112a2df Jason J. Herne 2017-02-21 173 "0: .insn rrf,%[opc] << 16,2,4,6,0\n" c7d4d259 Martin Schwidefsky 2016-03-17 174 " brc 1,0b\n" /* handle partial completion */ 69c0e360 Martin Schwidefsky 2016-08-18 175 : "=m" (*mask) c7d4d259 Martin Schwidefsky 2016-03-17 176 : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) c7d4d259 Martin Schwidefsky 2016-03-17 177 : "cc"); c7d4d259 Martin Schwidefsky 2016-03-17 178 } c7d4d259 Martin Schwidefsky 2016-03-17 179 :::::: The code at line 170 was first introduced by commit :::::: c7d4d259b7477866376435155eb0ccdaee880677 s390/crypto: cleanup and move the header with the cpacf definitions :::::: TO: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> :::::: CC: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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