tree: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge head: 34ae5d53ec5963e3f2967fcd12bae44decbfc4c0 commit: 07cebb5e726d519b7de0373ade62465c2ebdd355 [126/127] PM / domains: Return 0 on error from of_genpd_opp_to_performance_state() config: x86_64-randconfig-x019-201820 (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: git checkout 07cebb5e726d519b7de0373ade62465c2ebdd355 # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/base/power/domain.c: In function 'of_genpd_opp_to_performance_state': >> drivers/base/power/domain.c:2434:47: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long int' [-Wformat=] dev_err(dev, "Failed to find required OPP: %d\n", PTR_ERR(opp)); ~^ ~~~~~~~~~~~~ %ld vim +2434 drivers/base/power/domain.c 2399 2400 /** 2401 * of_genpd_opp_to_performance_state- Gets performance state of device's 2402 * power domain corresponding to a DT node's "required-opps" property. 2403 * 2404 * @dev: Device for which the performance-state needs to be found. 2405 * @opp_node: DT node where the "required-opps" property is present. This can be 2406 * the device node itself (if it doesn't have an OPP table) or a node 2407 * within the OPP table of a device (if device has an OPP table). 2408 * @state: Pointer to return performance state. 2409 * 2410 * Returns performance state corresponding to the "required-opps" property of 2411 * a DT node. This calls platform specific genpd->opp_to_performance_state() 2412 * callback to translate power domain OPP to performance state. 2413 * 2414 * Returns performance state on success and 0 on failure. 2415 */ 2416 unsigned int of_genpd_opp_to_performance_state(struct device *dev, 2417 struct device_node *opp_node) 2418 { 2419 struct generic_pm_domain *genpd; 2420 struct dev_pm_opp *opp; 2421 int state = 0; 2422 2423 genpd = dev_to_genpd(dev); 2424 if (IS_ERR(genpd)) 2425 return 0; 2426 2427 if (unlikely(!genpd->set_performance_state)) 2428 return 0; 2429 2430 genpd_lock(genpd); 2431 2432 opp = of_dev_pm_opp_find_required_opp(&genpd->dev, opp_node); 2433 if (IS_ERR(opp)) { > 2434 dev_err(dev, "Failed to find required OPP: %d\n", PTR_ERR(opp)); 2435 goto unlock; 2436 } 2437 2438 state = genpd->opp_to_performance_state(genpd, opp); 2439 dev_pm_opp_put(opp); 2440 2441 unlock: 2442 genpd_unlock(genpd); 2443 2444 return state; 2445 } 2446 EXPORT_SYMBOL_GPL(of_genpd_opp_to_performance_state); 2447 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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