tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/gregkh/driver-core.git debugfs_cleanup head: e647f5cb848a5cb522516fd5ca67d89d6b12bdb2 commit: 7fb9d02c8360513538f1de583da9174490553654 [187/193] debugfs: remove return value of debugfs_create_u32() config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 7fb9d02c8360513538f1de583da9174490553654 # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=arm If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/iommu/omap-iommu-debug.c: In function 'omap_iommu_debugfs_add': >> drivers/iommu/omap-iommu-debug.c:264:4: error: void value not ignored as it ought to be d = debugfs_create_u32("nr_tlb_entries", 0400, obj->debug_dir, ^ vim +264 drivers/iommu/omap-iommu-debug.c 14e0e6796 arch/arm/plat-omap/iommu-debug.c Hiroshi DOYU 2009-08-28 252 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 253 void omap_iommu_debugfs_add(struct omap_iommu *obj) 14e0e6796 arch/arm/plat-omap/iommu-debug.c Hiroshi DOYU 2009-08-28 254 { 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 255 struct dentry *d; 46451d622 drivers/iommu/omap-iommu-debug.c Ohad Ben-Cohen 2012-02-22 256 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 257 if (!iommu_debug_root) 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 258 return; 46451d622 drivers/iommu/omap-iommu-debug.c Ohad Ben-Cohen 2012-02-22 259 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 260 obj->debug_dir = debugfs_create_dir(obj->name, iommu_debug_root); 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 261 if (!obj->debug_dir) 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 262 return; 46451d622 drivers/iommu/omap-iommu-debug.c Ohad Ben-Cohen 2012-02-22 263 f18affbea drivers/iommu/omap-iommu-debug.c Geert Uytterhoeven 2018-01-02 @264 d = debugfs_create_u32("nr_tlb_entries", 0400, obj->debug_dir, f18affbea drivers/iommu/omap-iommu-debug.c Geert Uytterhoeven 2018-01-02 265 &obj->nr_tlb_entries); 14e0e6796 arch/arm/plat-omap/iommu-debug.c Hiroshi DOYU 2009-08-28 266 if (!d) 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 267 return; 14e0e6796 arch/arm/plat-omap/iommu-debug.c Hiroshi DOYU 2009-08-28 268 14e0e6796 arch/arm/plat-omap/iommu-debug.c Hiroshi DOYU 2009-08-28 269 DEBUG_ADD_FILE_RO(regs); 14e0e6796 arch/arm/plat-omap/iommu-debug.c Hiroshi DOYU 2009-08-28 270 DEBUG_ADD_FILE_RO(tlb); 3ca5db072 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 271 DEBUG_ADD_FILE_RO(pagetable); 14e0e6796 arch/arm/plat-omap/iommu-debug.c Hiroshi DOYU 2009-08-28 272 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 273 return; 46451d622 drivers/iommu/omap-iommu-debug.c Ohad Ben-Cohen 2012-02-22 274 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 275 err: 61c753526 drivers/iommu/omap-iommu-debug.c Suman Anna 2014-10-22 276 debugfs_remove_recursive(obj->debug_dir); 46451d622 drivers/iommu/omap-iommu-debug.c Ohad Ben-Cohen 2012-02-22 277 } 46451d622 drivers/iommu/omap-iommu-debug.c Ohad Ben-Cohen 2012-02-22 278 :::::: The code at line 264 was first introduced by commit :::::: f18affbea8f7aebb235bfdaf3ad4c307aa5f3d64 iommu/omap: Fix debugfs_create_*() usage :::::: TO: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> :::::: CC: Joerg Roedel <jroedel@xxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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