Hi Tetsuo, I love your patch! Perhaps something to improve:
[auto build test WARNING on tip/locking/core] [also build test WARNING on v4.18-rc4 next-20180709] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Tetsuo-Handa/locking-rwsem-Convert-the-other-sem-count-to-atomic_long_t/20180710-141553 config: parisc-c3000_defconfig (attached as .config) compiler: hppa-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 # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=parisc All warnings (new ones prefixed by >>): In file included from include/linux/notifier.h:15:0, from include/linux/memory_hotplug.h:7, from include/linux/mmzone.h:777, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:22, from include/linux/module.h:13, from drivers/usb/core/hcd-pci.c:7: include/linux/rwsem.h:87:2: warning: missing braces around initializer [-Wmissing-braces] { __RWSEM_INIT_COUNT(name), \ ^ include/linux/rwsem.h:94:29: note: in expansion of macro '__RWSEM_INITIALIZER' struct rw_semaphore name = __RWSEM_INITIALIZER(name) ^~~~~~~~~~~~~~~~~~~ >> drivers/usb/core/hcd-pci.c:31:8: note: in expansion of macro 'DECLARE_RWSEM' static DECLARE_RWSEM(companions_rwsem); ^~~~~~~~~~~~~ vim +/DECLARE_RWSEM +31 drivers/usb/core/hcd-pci.c ^1da177e4 Linus Torvalds 2005-04-16 @7 #include <linux/module.h> ^1da177e4 Linus Torvalds 2005-04-16 8 #include <linux/pci.h> 21b1861fb David Brownell 2005-11-23 9 #include <linux/usb.h> 27729aadd Eric Lescouet 2010-04-24 10 #include <linux/usb/hcd.h> 21b1861fb David Brownell 2005-11-23 11 ^1da177e4 Linus Torvalds 2005-04-16 12 #include <asm/io.h> ^1da177e4 Linus Torvalds 2005-04-16 13 #include <asm/irq.h> 21b1861fb David Brownell 2005-11-23 14 21b1861fb David Brownell 2005-11-23 15 #ifdef CONFIG_PPC_PMAC 21b1861fb David Brownell 2005-11-23 16 #include <asm/machdep.h> 21b1861fb David Brownell 2005-11-23 17 #include <asm/pmac_feature.h> 21b1861fb David Brownell 2005-11-23 18 #include <asm/prom.h> 21b1861fb David Brownell 2005-11-23 19 #endif 5f827ea3c David Brownell 2005-09-22 20 5f827ea3c David Brownell 2005-09-22 21 #include "usb.h" ^1da177e4 Linus Torvalds 2005-04-16 22 ^1da177e4 Linus Torvalds 2005-04-16 23 c6053ecff David Brownell 2005-04-18 24 /* PCI-based HCs are common, but plenty of non-PCI HCs are used too */ ^1da177e4 Linus Torvalds 2005-04-16 25 05768918b Alan Stern 2013-03-28 26 /* 05768918b Alan Stern 2013-03-28 27 * Coordinate handoffs between EHCI and companion controllers 05768918b Alan Stern 2013-03-28 28 * during EHCI probing and system resume. 6d19c009c Alan Stern 2010-02-12 29 */ 6d19c009c Alan Stern 2010-02-12 30 05768918b Alan Stern 2013-03-28 @31 static DECLARE_RWSEM(companions_rwsem); 6d19c009c Alan Stern 2010-02-12 32 :::::: The code at line 31 was first introduced by commit :::::: 05768918b9a122ce21bd55950df5054ff6c57f28 USB: improve port transitions when EHCI starts up :::::: TO: Alan Stern <st...@rowland.harvard.edu> :::::: CC: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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