tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15 head: 1183ce490adb103e5e569b8ebd74c50c885ddc05 commit: e7cc160039f02d71ef5a3b16038d325ad76ab59e [132/872] clocking-wizard: Support higher frequency accuracy config: x86_64-randconfig-a002-20220207 (https://download.01.org/0day-ci/archive/20220208/202202081516.4zYCwhp4-lk...) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e8bff9ae54a55b4dbfeb6ba55f723abbd81bf494) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/Xilinx/linux-xlnx/commit/e7cc160039f02d71ef5a3b16038d3... git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.15 git checkout e7cc160039f02d71ef5a3b16038d325ad76ab59e # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): reg = FIELD_PREP(WZRD_CLKOUT_DIVIDE_MASK, clockout0_div) | ^ d = FIELD_GET(WZRD_DIVCLK_DIVIDE_MASK, reg); ^ 2 errors generated. vim +/FIELD_PREP +309 drivers/clk/clk-xlnx-clock-wizard.c 286 287 static int clk_wzrd_dynamic_all_nolock(struct clk_hw *hw, unsigned long rate, 288 unsigned long parent_rate) 289 { 290 struct clk_wzrd_divider *divider = to_clk_wzrd_divider(hw); 291 u32 reg, pre; 292 u32 value; 293 int err; 294 u64 vco_freq, rate_div, f, clockout0_div; 295 296 err = clk_wzrd_get_divisors(hw, rate, parent_rate); 297 if (err) 298 pr_err("failed to get divisors\n"); 299 300 vco_freq = DIV_ROUND_CLOSEST((parent_rate * divider->valuem), divider->valued); 301 rate_div = DIV_ROUND_CLOSEST((vco_freq * WZRD_FRAC_POINTS), rate); 302 303 clockout0_div = rate_div / WZRD_FRAC_POINTS; 304 305 pre = DIV_ROUND_CLOSEST((vco_freq * WZRD_FRAC_POINTS), rate); 306 f = (u32)(pre - (clockout0_div * WZRD_FRAC_POINTS)); 307 f = f & WZRD_CLKOUT_FRAC_MASK; 308 310 FIELD_PREP(WZRD_CLKOUT0_FRAC_MASK, f); 311 312 writel(reg, divider->base + WZRD_CLK_CFG_REG(2)); 313 /* Set divisor and clear phase offset */ 314 reg = FIELD_PREP(WZRD_CLKFBOUT_MULT_MASK, divider->valuem) | 315 FIELD_PREP(WZRD_DIVCLK_DIVIDE_MASK, divider->valued); 316 writel(reg, divider->base + WZRD_CLK_CFG_REG(0)); 317 writel(divider->valueo, divider->base + WZRD_CLK_CFG_REG(2)); 318 writel(0, divider->base + WZRD_CLK_CFG_REG(3)); 319 /* Check status register */ 320 err = readl_poll_timeout(divider->base + WZRD_DR_STATUS_REG_OFFSET, value, 321 value & WZRD_DR_LOCK_BIT_MASK, 322 WZRD_USEC_POLL, WZRD_TIMEOUT_POLL); 323 if (err) 324 return -ETIMEDOUT; 325 326 /* Initiate reconfiguration */ 327 writel(WZRD_DR_BEGIN_DYNA_RECONF, 328 divider->base + WZRD_DR_INIT_REG_OFFSET); 329 330 /* Check status register */ 331 err = readl_poll_timeout(divider->base + WZRD_DR_STATUS_REG_OFFSET, value, 332 value & WZRD_DR_LOCK_BIT_MASK, 333 WZRD_USEC_POLL, WZRD_TIMEOUT_POLL); 334 if (err) 335 return -ETIMEDOUT; 336 337 return 0; 338 } 339 340 static int clk_wzrd_dynamic_all(struct clk_hw *hw, unsigned long rate, 341 unsigned long parent_rate) 342 { 343 struct clk_wzrd_divider *divider = to_clk_wzrd_divider(hw); 344 unsigned long flags = 0; 345 int ret; 346 347 if (divider->lock) 348 spin_lock_irqsave(divider->lock, flags); 349 else 350 __acquire(divider->lock); 351 352 ret = clk_wzrd_dynamic_all_nolock(hw, rate, parent_rate); 353 354 if (divider->lock) 355 spin_unlock_irqrestore(divider->lock, flags); 356 else 357 __release(divider->lock); 358 359 return ret; 360 } 361 362 static unsigned long clk_wzrd_recalc_rate_all(struct clk_hw *hw, 363 unsigned long parent_rate) 364 { 365 struct clk_wzrd_divider *divider = to_clk_wzrd_divider(hw); 366 u32 m, d, o, div, reg, f; 367 368 reg = readl(divider->base + WZRD_CLK_CFG_REG(0)); 370 m = FIELD_GET(WZRD_CLKFBOUT_MULT_MASK, reg); 371 reg = readl(divider->base + WZRD_CLK_CFG_REG(2)); 372 o = FIELD_GET(WZRD_DIVCLK_DIVIDE_MASK, reg); 373 f = FIELD_GET(WZRD_CLKOUT0_FRAC_MASK, reg); 374 375 div = DIV_ROUND_CLOSEST(d * (WZRD_FRAC_POINTS * o + f), WZRD_FRAC_POINTS); 376 return divider_recalc_rate(hw, parent_rate * m, div, divider->table, 377 divider->flags, divider->width); 378 } 379 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org