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SubjectRe: [PATCH v2 1/2] clk: qcom: rpmh: skip undefined clocks when registering
Hi Taniya,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on clk/clk-next]
[also build test WARNING on v5.5-rc5 next-20191220]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Taniya-Das/Add-support-for-IPA-clock-for-SC7180/20200106-201629
base: https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
config: mips-allmodconfig (attached as .config)
compiler: mips-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
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=mips

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

drivers/clk//qcom/clk-rpmh.c: In function 'clk_rpmh_probe':
>> drivers/clk//qcom/clk-rpmh.c:441:3: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
const char *name = hw_clks[i]->init->name;
^~~~~

vim +441 drivers/clk//qcom/clk-rpmh.c

419
420 static int clk_rpmh_probe(struct platform_device *pdev)
421 {
422 struct clk_hw **hw_clks;
423 struct clk_rpmh *rpmh_clk;
424 const struct clk_rpmh_desc *desc;
425 int ret, i;
426
427 desc = of_device_get_match_data(&pdev->dev);
428 if (!desc)
429 return -ENODEV;
430
431 hw_clks = desc->clks;
432
433 for (i = 0; i < desc->num_clks; i++) {
434 u32 res_addr;
435 size_t aux_data_len;
436 const struct bcm_db *data;
437
438 if (!hw_clks[i])
439 continue;
440
> 441 const char *name = hw_clks[i]->init->name;
442
443 rpmh_clk = to_clk_rpmh(hw_clks[i]);
444 res_addr = cmd_db_read_addr(rpmh_clk->res_name);
445 if (!res_addr) {
446 dev_err(&pdev->dev, "missing RPMh resource address for %s\n",
447 rpmh_clk->res_name);
448 return -ENODEV;
449 }
450
451 data = cmd_db_read_aux_data(rpmh_clk->res_name, &aux_data_len);
452 if (IS_ERR(data)) {
453 ret = PTR_ERR(data);
454 dev_err(&pdev->dev,
455 "error reading RPMh aux data for %s (%d)\n",
456 rpmh_clk->res_name, ret);
457 return ret;
458 }
459
460 /* Convert unit from Khz to Hz */
461 if (aux_data_len == sizeof(*data))
462 rpmh_clk->unit = le32_to_cpu(data->unit) * 1000ULL;
463
464 rpmh_clk->res_addr += res_addr;
465 rpmh_clk->dev = &pdev->dev;
466
467 ret = devm_clk_hw_register(&pdev->dev, hw_clks[i]);
468 if (ret) {
469 dev_err(&pdev->dev, "failed to register %s\n", name);
470 return ret;
471 }
472 }
473
474 /* typecast to silence compiler warning */
475 ret = devm_of_clk_add_hw_provider(&pdev->dev, of_clk_rpmh_hw_get,
476 (void *)desc);
477 if (ret) {
478 dev_err(&pdev->dev, "Failed to add clock provider\n");
479 return ret;
480 }
481
482 dev_dbg(&pdev->dev, "Registered RPMh clocks\n");
483
484 return 0;
485 }
486

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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