From: kernel test robot <lkp@intel.com>
To: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
Masahiro Yamada <yamada.masahiro@socionext.com>
Subject: include/linux/spinlock.h:393:9: sparse: sparse: context imbalance in 'req_done' - unexpected unlock
Date: Mon, 6 Jul 2020 17:29:27 +0800 [thread overview]
Message-ID: <202007061708.CatIBqxs%lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: dcb7fd82c75ee2d6e6f9d8cc71c52519ed52e258
commit: 80591e61a0f7e88deaada69844e4a31280c4a38f kbuild: tell sparse about the $ARCH
date: 8 months ago
config: nios2-randconfig-s032-20200706 (attached as .config)
compiler: nios2-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.2-14-g8fce3d7a-dirty
git checkout 80591e61a0f7e88deaada69844e4a31280c4a38f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=nios2
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
drivers/usb/gadget/udc/pxa27x_udc.c:2093:20: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [assigned] [usertype] wValue @@ got int config @@
drivers/usb/gadget/udc/pxa27x_udc.c:2093:20: sparse: expected restricted __le16 [assigned] [usertype] wValue
drivers/usb/gadget/udc/pxa27x_udc.c:2093:20: sparse: got int config
drivers/usb/gadget/udc/pxa27x_udc.c:2122:20: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [assigned] [usertype] wValue @@ got int alt @@
drivers/usb/gadget/udc/pxa27x_udc.c:2122:20: sparse: expected restricted __le16 [assigned] [usertype] wValue
drivers/usb/gadget/udc/pxa27x_udc.c:2122:20: sparse: got int alt
drivers/usb/gadget/udc/pxa27x_udc.c:2123:20: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [assigned] [usertype] wIndex @@ got int iface @@
drivers/usb/gadget/udc/pxa27x_udc.c:2123:20: sparse: expected restricted __le16 [assigned] [usertype] wIndex
drivers/usb/gadget/udc/pxa27x_udc.c:2123:20: sparse: got int iface
drivers/usb/gadget/udc/pxa27x_udc.c:2306:17: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __le16 [usertype] wMaxPacketSize @@ got unsigned int @@
drivers/usb/gadget/udc/pxa27x_udc.c:2306:17: sparse: expected restricted __le16 [usertype] wMaxPacketSize
drivers/usb/gadget/udc/pxa27x_udc.c:2306:17: sparse: got unsigned int
drivers/usb/gadget/udc/pxa27x_udc.c:2307:17: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __le16 [usertype] wMaxPacketSize @@ got unsigned int @@
drivers/usb/gadget/udc/pxa27x_udc.c:2307:17: sparse: expected restricted __le16 [usertype] wMaxPacketSize
drivers/usb/gadget/udc/pxa27x_udc.c:2307:17: sparse: got unsigned int
drivers/usb/gadget/udc/pxa27x_udc.c:2308:17: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __le16 [usertype] wMaxPacketSize @@ got unsigned int @@
drivers/usb/gadget/udc/pxa27x_udc.c:2308:17: sparse: expected restricted __le16 [usertype] wMaxPacketSize
drivers/usb/gadget/udc/pxa27x_udc.c:2308:17: sparse: got unsigned int
drivers/usb/gadget/udc/pxa27x_udc.c:2309:17: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __le16 [usertype] wMaxPacketSize @@ got unsigned int @@
drivers/usb/gadget/udc/pxa27x_udc.c:2309:17: sparse: expected restricted __le16 [usertype] wMaxPacketSize
drivers/usb/gadget/udc/pxa27x_udc.c:2309:17: sparse: got unsigned int
drivers/usb/gadget/udc/pxa27x_udc.c:2310:17: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __le16 [usertype] wMaxPacketSize @@ got unsigned int @@
drivers/usb/gadget/udc/pxa27x_udc.c:2310:17: sparse: expected restricted __le16 [usertype] wMaxPacketSize
drivers/usb/gadget/udc/pxa27x_udc.c:2310:17: sparse: got unsigned int
drivers/usb/gadget/udc/pxa27x_udc.c:2311:17: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __le16 [usertype] wMaxPacketSize @@ got unsigned int @@
drivers/usb/gadget/udc/pxa27x_udc.c:2311:17: sparse: expected restricted __le16 [usertype] wMaxPacketSize
drivers/usb/gadget/udc/pxa27x_udc.c:2311:17: sparse: got unsigned int
>> include/linux/spinlock.h:393:9: sparse: sparse: context imbalance in 'req_done' - unexpected unlock
vim +/req_done +393 include/linux/spinlock.h
c2f21ce2e31286a Thomas Gleixner 2009-12-02 390
3490565b633c705 Denys Vlasenko 2015-07-13 391 static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
c2f21ce2e31286a Thomas Gleixner 2009-12-02 392 {
c2f21ce2e31286a Thomas Gleixner 2009-12-02 @393 raw_spin_unlock_irqrestore(&lock->rlock, flags);
c2f21ce2e31286a Thomas Gleixner 2009-12-02 394 }
c2f21ce2e31286a Thomas Gleixner 2009-12-02 395
:::::: The code at line 393 was first introduced by commit
:::::: c2f21ce2e31286a0a32f8da0a7856e9ca1122ef3 locking: Implement new raw_spinlock
:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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