tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git debugfs_cleanup head: d8de692bccca02a757f4d4c2de9805b561497014 commit: 19410727eb72c71fd3c6c0398e3e8e8ac236f696 [51/61] opp: no need to check return value of debugfs_create functions config: sh-allmodconfig (attached as .config) compiler: sh4-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 19410727eb72c71fd3c6c0398e3e8e8ac236f696 # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=sh All warnings (new ones prefixed by >>): drivers/opp/debugfs.c: In function 'opp_debug_create_supplies': >> drivers/opp/debugfs.c:66:9: warning: 'return' with a value, in function returning void return true; ^~~~ drivers/opp/debugfs.c:38:13: note: declared here static void opp_debug_create_supplies(struct dev_pm_opp *opp, ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/opp/debugfs.c: In function 'opp_list_debug_create_link': drivers/opp/debugfs.c:123:23: warning: unused variable 'dev' [-Wunused-variable] const struct device *dev = opp_dev->dev; ^~~ vim +/return +66 drivers/opp/debugfs.c deaa5146 drivers/base/power/opp/debugfs.c Viresh Kumar 2015-11-11 37 19410727 drivers/opp/debugfs.c Greg Kroah-Hartman 2019-01-03 38 static void opp_debug_create_supplies(struct dev_pm_opp *opp, dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 39 struct opp_table *opp_table, dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 40 struct dentry *pdentry) dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 41 { dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 42 struct dentry *d; 1fae788e drivers/base/power/opp/debugfs.c Viresh Kumar 2017-05-23 43 int i; dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 44 1fae788e drivers/base/power/opp/debugfs.c Viresh Kumar 2017-05-23 45 for (i = 0; i < opp_table->regulator_count; i++) { d741029a drivers/opp/debugfs.c Arvind Yadav 2017-09-21 46 char name[15]; d741029a drivers/opp/debugfs.c Arvind Yadav 2017-09-21 47 d741029a drivers/opp/debugfs.c Arvind Yadav 2017-09-21 48 snprintf(name, sizeof(name), "supply-%d", i); dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 49 dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 50 /* Create per-opp directory */ dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 51 d = debugfs_create_dir(name, pdentry); dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 52 19410727 drivers/opp/debugfs.c Greg Kroah-Hartman 2019-01-03 53 debugfs_create_ulong("u_volt_target", S_IRUGO, d, 19410727 drivers/opp/debugfs.c Greg Kroah-Hartman 2019-01-03 54 &opp->supplies[i].u_volt); dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 55 19410727 drivers/opp/debugfs.c Greg Kroah-Hartman 2019-01-03 56 debugfs_create_ulong("u_volt_min", S_IRUGO, d, 19410727 drivers/opp/debugfs.c Greg Kroah-Hartman 2019-01-03 57 &opp->supplies[i].u_volt_min); dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 58 19410727 drivers/opp/debugfs.c Greg Kroah-Hartman 2019-01-03 59 debugfs_create_ulong("u_volt_max", S_IRUGO, d, 19410727 drivers/opp/debugfs.c Greg Kroah-Hartman 2019-01-03 60 &opp->supplies[i].u_volt_max); dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 61 19410727 drivers/opp/debugfs.c Greg Kroah-Hartman 2019-01-03 62 debugfs_create_ulong("u_amp", S_IRUGO, d, 19410727 drivers/opp/debugfs.c Greg Kroah-Hartman 2019-01-03 63 &opp->supplies[i].u_amp); 1fae788e drivers/base/power/opp/debugfs.c Viresh Kumar 2017-05-23 64 } dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 65 dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 @66 return true; dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 67 } dfbe4678 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 68 :::::: The code at line 66 was first introduced by commit :::::: dfbe4678d709e25e0f36e6b6333e2a7a67aefb7e PM / OPP: Add infrastructure to manage multiple regulators :::::: TO: Viresh Kumar <viresh.kumar@xxxxxxxxxx> :::::: CC: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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