tree: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master head: 1ce1cd8208ad6060e4fcf6e09068c8954687c127 commit: 1ce1cd8208ad6060e4fcf6e09068c8954687c127 [83/83] hwrng: Enable COMPILE_TEST for more drivers config: s390-randconfig-r015-20230801 (https://download.01.org/0day-ci/archive/20230804/202308042049.8R2tNRoo-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230804/202308042049.8R2tNRoo-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308042049.8R2tNRoo-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/char/hw_random/xgene-rng.c:110:2: error: call to undeclared function 'writel'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 110 | writel(fro_val, ctx->csr_base + RNG_FRODETUNE); | ^ >> drivers/char/hw_random/xgene-rng.c:120:8: error: call to undeclared function 'readl'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 120 | val = readl(ctx->csr_base + RNG_INTR_STS_ACK); | ^ drivers/char/hw_random/xgene-rng.c:196:2: error: call to undeclared function 'writel'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 196 | writel(val, ctx->csr_base + RNG_INTR_STS_ACK); | ^ drivers/char/hw_random/xgene-rng.c:215:9: error: call to undeclared function 'readl'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 215 | val = readl(ctx->csr_base + RNG_INTR_STS_ACK); | ^ drivers/char/hw_random/xgene-rng.c:230:13: error: call to undeclared function 'readl'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 230 | data[i] = readl(ctx->csr_base + RNG_INOUT_0 + i * 4); | ^ drivers/char/hw_random/xgene-rng.c:233:2: error: call to undeclared function 'writel'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 233 | writel(READY_MASK, ctx->csr_base + RNG_INTR_STS_ACK); | ^ drivers/char/hw_random/xgene-rng.c:242:2: error: call to undeclared function 'writel'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 242 | writel(0x00000000, ctx->csr_base + RNG_CONTROL); | ^ drivers/char/hw_random/xgene-rng.c:280:18: error: call to undeclared function 'readl'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 280 | ctx->revision = readl(ctx->csr_base + RNG_EIP_REV); | ^ 8 errors generated. vim +/writel +110 drivers/char/hw_random/xgene-rng.c a91ae4eba9f9977 Feng Kan 2014-08-22 104 a91ae4eba9f9977 Feng Kan 2014-08-22 105 /* a91ae4eba9f9977 Feng Kan 2014-08-22 106 * Initialize or reinit free running oscillators (FROs) a91ae4eba9f9977 Feng Kan 2014-08-22 107 */ a91ae4eba9f9977 Feng Kan 2014-08-22 108 static void xgene_rng_init_fro(struct xgene_rng_dev *ctx, u32 fro_val) a91ae4eba9f9977 Feng Kan 2014-08-22 109 { a91ae4eba9f9977 Feng Kan 2014-08-22 @110 writel(fro_val, ctx->csr_base + RNG_FRODETUNE); a91ae4eba9f9977 Feng Kan 2014-08-22 111 writel(0x00000000, ctx->csr_base + RNG_ALARMMASK); a91ae4eba9f9977 Feng Kan 2014-08-22 112 writel(0x00000000, ctx->csr_base + RNG_ALARMSTOP); a91ae4eba9f9977 Feng Kan 2014-08-22 113 writel(0xFFFFFFFF, ctx->csr_base + RNG_FROENABLE); a91ae4eba9f9977 Feng Kan 2014-08-22 114 } a91ae4eba9f9977 Feng Kan 2014-08-22 115 a91ae4eba9f9977 Feng Kan 2014-08-22 116 static void xgene_rng_chk_overflow(struct xgene_rng_dev *ctx) a91ae4eba9f9977 Feng Kan 2014-08-22 117 { a91ae4eba9f9977 Feng Kan 2014-08-22 118 u32 val; a91ae4eba9f9977 Feng Kan 2014-08-22 119 a91ae4eba9f9977 Feng Kan 2014-08-22 @120 val = readl(ctx->csr_base + RNG_INTR_STS_ACK); a91ae4eba9f9977 Feng Kan 2014-08-22 121 if (val & MONOBIT_FAIL_MASK) a91ae4eba9f9977 Feng Kan 2014-08-22 122 /* a91ae4eba9f9977 Feng Kan 2014-08-22 123 * LFSR detected an out-of-bounds number of 1s after a91ae4eba9f9977 Feng Kan 2014-08-22 124 * checking 20,000 bits (test T1 as specified in the a91ae4eba9f9977 Feng Kan 2014-08-22 125 * AIS-31 standard) a91ae4eba9f9977 Feng Kan 2014-08-22 126 */ a91ae4eba9f9977 Feng Kan 2014-08-22 127 dev_err(ctx->dev, "test monobit failure error 0x%08X\n", val); a91ae4eba9f9977 Feng Kan 2014-08-22 128 if (val & POKER_FAIL_MASK) a91ae4eba9f9977 Feng Kan 2014-08-22 129 /* a91ae4eba9f9977 Feng Kan 2014-08-22 130 * LFSR detected an out-of-bounds value in at least one a91ae4eba9f9977 Feng Kan 2014-08-22 131 * of the 16 poker_count_X counters or an out of bounds sum a91ae4eba9f9977 Feng Kan 2014-08-22 132 * of squares value after checking 20,000 bits (test T2 as a91ae4eba9f9977 Feng Kan 2014-08-22 133 * specified in the AIS-31 standard) a91ae4eba9f9977 Feng Kan 2014-08-22 134 */ a91ae4eba9f9977 Feng Kan 2014-08-22 135 dev_err(ctx->dev, "test poker failure error 0x%08X\n", val); a91ae4eba9f9977 Feng Kan 2014-08-22 136 if (val & LONG_RUN_FAIL_MASK) a91ae4eba9f9977 Feng Kan 2014-08-22 137 /* a91ae4eba9f9977 Feng Kan 2014-08-22 138 * LFSR detected a sequence of 34 identical bits a91ae4eba9f9977 Feng Kan 2014-08-22 139 * (test T4 as specified in the AIS-31 standard) a91ae4eba9f9977 Feng Kan 2014-08-22 140 */ a91ae4eba9f9977 Feng Kan 2014-08-22 141 dev_err(ctx->dev, "test long run failure error 0x%08X\n", val); a91ae4eba9f9977 Feng Kan 2014-08-22 142 if (val & RUN_FAIL_MASK) a91ae4eba9f9977 Feng Kan 2014-08-22 143 /* a91ae4eba9f9977 Feng Kan 2014-08-22 144 * LFSR detected an outof-bounds value for at least one a91ae4eba9f9977 Feng Kan 2014-08-22 145 * of the running counters after checking 20,000 bits a91ae4eba9f9977 Feng Kan 2014-08-22 146 * (test T3 as specified in the AIS-31 standard) a91ae4eba9f9977 Feng Kan 2014-08-22 147 */ a91ae4eba9f9977 Feng Kan 2014-08-22 148 dev_err(ctx->dev, "test run failure error 0x%08X\n", val); a91ae4eba9f9977 Feng Kan 2014-08-22 149 if (val & NOISE_FAIL_MASK) a91ae4eba9f9977 Feng Kan 2014-08-22 150 /* LFSR detected a sequence of 48 identical bits */ a91ae4eba9f9977 Feng Kan 2014-08-22 151 dev_err(ctx->dev, "noise failure error 0x%08X\n", val); a91ae4eba9f9977 Feng Kan 2014-08-22 152 if (val & STUCK_OUT_MASK) a91ae4eba9f9977 Feng Kan 2014-08-22 153 /* a91ae4eba9f9977 Feng Kan 2014-08-22 154 * Detected output data registers generated same value twice a91ae4eba9f9977 Feng Kan 2014-08-22 155 * in a row a91ae4eba9f9977 Feng Kan 2014-08-22 156 */ a91ae4eba9f9977 Feng Kan 2014-08-22 157 dev_err(ctx->dev, "stuck out failure error 0x%08X\n", val); a91ae4eba9f9977 Feng Kan 2014-08-22 158 a91ae4eba9f9977 Feng Kan 2014-08-22 159 if (val & SHUTDOWN_OFLO_MASK) { a91ae4eba9f9977 Feng Kan 2014-08-22 160 u32 frostopped; a91ae4eba9f9977 Feng Kan 2014-08-22 161 a91ae4eba9f9977 Feng Kan 2014-08-22 162 /* FROs shut down after a second error event. Try recover. */ a91ae4eba9f9977 Feng Kan 2014-08-22 163 if (++ctx->failure_cnt == 1) { a91ae4eba9f9977 Feng Kan 2014-08-22 164 /* 1st time, just recover */ a91ae4eba9f9977 Feng Kan 2014-08-22 165 ctx->failure_ts = jiffies; a91ae4eba9f9977 Feng Kan 2014-08-22 166 frostopped = readl(ctx->csr_base + RNG_ALARMSTOP); a91ae4eba9f9977 Feng Kan 2014-08-22 167 xgene_rng_init_fro(ctx, frostopped); a91ae4eba9f9977 Feng Kan 2014-08-22 168 a91ae4eba9f9977 Feng Kan 2014-08-22 169 /* a91ae4eba9f9977 Feng Kan 2014-08-22 170 * We must start a timer to clear out this error a91ae4eba9f9977 Feng Kan 2014-08-22 171 * in case the system timer wrap around a91ae4eba9f9977 Feng Kan 2014-08-22 172 */ a91ae4eba9f9977 Feng Kan 2014-08-22 173 xgene_rng_start_timer(ctx); a91ae4eba9f9977 Feng Kan 2014-08-22 174 } else { a91ae4eba9f9977 Feng Kan 2014-08-22 175 /* 2nd time failure in lesser than 1 minute? */ a91ae4eba9f9977 Feng Kan 2014-08-22 176 if (time_after(ctx->failure_ts + 60 * HZ, jiffies)) { a91ae4eba9f9977 Feng Kan 2014-08-22 177 dev_err(ctx->dev, a91ae4eba9f9977 Feng Kan 2014-08-22 178 "FRO shutdown failure error 0x%08X\n", a91ae4eba9f9977 Feng Kan 2014-08-22 179 val); a91ae4eba9f9977 Feng Kan 2014-08-22 180 } else { a91ae4eba9f9977 Feng Kan 2014-08-22 181 /* 2nd time failure after 1 minutes, recover */ a91ae4eba9f9977 Feng Kan 2014-08-22 182 ctx->failure_ts = jiffies; a91ae4eba9f9977 Feng Kan 2014-08-22 183 ctx->failure_cnt = 1; a91ae4eba9f9977 Feng Kan 2014-08-22 184 /* a91ae4eba9f9977 Feng Kan 2014-08-22 185 * We must start a timer to clear out this a91ae4eba9f9977 Feng Kan 2014-08-22 186 * error in case the system timer wrap a91ae4eba9f9977 Feng Kan 2014-08-22 187 * around a91ae4eba9f9977 Feng Kan 2014-08-22 188 */ a91ae4eba9f9977 Feng Kan 2014-08-22 189 xgene_rng_start_timer(ctx); a91ae4eba9f9977 Feng Kan 2014-08-22 190 } a91ae4eba9f9977 Feng Kan 2014-08-22 191 frostopped = readl(ctx->csr_base + RNG_ALARMSTOP); a91ae4eba9f9977 Feng Kan 2014-08-22 192 xgene_rng_init_fro(ctx, frostopped); a91ae4eba9f9977 Feng Kan 2014-08-22 193 } a91ae4eba9f9977 Feng Kan 2014-08-22 194 } a91ae4eba9f9977 Feng Kan 2014-08-22 195 /* Clear them all */ a91ae4eba9f9977 Feng Kan 2014-08-22 196 writel(val, ctx->csr_base + RNG_INTR_STS_ACK); a91ae4eba9f9977 Feng Kan 2014-08-22 197 } a91ae4eba9f9977 Feng Kan 2014-08-22 198 :::::: The code at line 110 was first introduced by commit :::::: a91ae4eba9f9977863b57f2ac61e2e8e780375a8 hwrng: xgene - add support for APM X-Gene SoC RNG support :::::: TO: Feng Kan <fkan@xxxxxxx> :::::: CC: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
