tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git debugfs_cleanup head: 3991c968605e239dcbd501054f0b45cb2639816c commit: 3991c968605e239dcbd501054f0b45cb2639816c [40/40] ib: cxgb4: no need to check return value of debugfs_create functions config: x86_64-randconfig-x019-201900 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: git checkout 3991c968605e239dcbd501054f0b45cb2639816c # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/infiniband/hw/cxgb4/device.c: In function 'setup_debugfs': >> drivers/infiniband/hw/cxgb4/device.c:740:9: warning: 'return' with a value, in function returning void return 0; ^ drivers/infiniband/hw/cxgb4/device.c:723:13: note: declared here static void setup_debugfs(struct c4iw_dev *devp) ^~~~~~~~~~~~~ vim +/return +740 drivers/infiniband/hw/cxgb4/device.c 793dad94e Vipul Pandya 2012-12-10 722 3991c9686 Greg Kroah-Hartman 2019-01-02 723 static void setup_debugfs(struct c4iw_dev *devp) cfdda9d76 Steve Wise 2010-04-21 724 { e59b4e918 David Howells 2015-01-21 725 debugfs_create_file_size("qps", S_IWUSR, devp->debugfs_root, e59b4e918 David Howells 2015-01-21 726 (void *)devp, &qp_debugfs_fops, 4096); 9e8d1fa34 Steve Wise 2010-09-10 727 e59b4e918 David Howells 2015-01-21 728 debugfs_create_file_size("stags", S_IWUSR, devp->debugfs_root, e59b4e918 David Howells 2015-01-21 729 (void *)devp, &stag_debugfs_fops, 4096); 8d81ef34b Vipul Pandya 2012-05-18 730 e59b4e918 David Howells 2015-01-21 731 debugfs_create_file_size("stats", S_IWUSR, devp->debugfs_root, e59b4e918 David Howells 2015-01-21 732 (void *)devp, &stats_debugfs_fops, 4096); 8d81ef34b Vipul Pandya 2012-05-18 733 e59b4e918 David Howells 2015-01-21 734 debugfs_create_file_size("eps", S_IWUSR, devp->debugfs_root, e59b4e918 David Howells 2015-01-21 735 (void *)devp, &ep_debugfs_fops, 4096); 793dad94e Vipul Pandya 2012-12-10 736 e59b4e918 David Howells 2015-01-21 737 if (c4iw_wr_log) e59b4e918 David Howells 2015-01-21 738 debugfs_create_file_size("wr_log", S_IWUSR, devp->debugfs_root, e59b4e918 David Howells 2015-01-21 739 (void *)devp, &wr_log_debugfs_fops, 4096); cfdda9d76 Steve Wise 2010-04-21 @740 return 0; cfdda9d76 Steve Wise 2010-04-21 741 } cfdda9d76 Steve Wise 2010-04-21 742 :::::: The code at line 740 was first introduced by commit :::::: cfdda9d764362ab77b11a410bb928400e6520d57 RDMA/cxgb4: Add driver for Chelsio T4 RNIC :::::: TO: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx> :::::: CC: Roland Dreier <rolandd@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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