Please ignore this revision of the patch, there was a small merge conflict on my end. On Thu, Apr 21, 2016 at 2:15 PM, kbuild test robot <lkp@xxxxxxxxx> wrote: > Hi, > > [auto build test WARNING on hid/for-next] > [also build test WARNING on v4.6-rc4 next-20160421] > [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] > > url: https://github.com/0day-ci/linux/commits/roderick-gaikai-com/HID-uhid-Fixes-a-bug-with-userspace-bluetooth-stacks-which-causes-hangs-during-certain-operations/20160422-050505 > base: https://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git for-next > config: x86_64-randconfig-x003-201616 (attached as .config) > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > All warnings (new ones prefixed by >>): > > In file included from arch/x86/include/asm/atomic.h:4:0, > from include/linux/atomic.h:4, > from drivers/hid/uhid.c:13: > drivers/hid/uhid.c: In function 'uhid_event_from_user': > drivers/hid/uhid.c:403:6: error: implicit declaration of function 'is_compat_task' [-Werror=implicit-function-declaration] > if (is_compat_task()) { > ^ > include/linux/compiler.h:151:30: note: in definition of macro '__trace_if' > if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ > ^ >>> drivers/hid/uhid.c:403:2: note: in expansion of macro 'if' > if (is_compat_task()) { > ^ > cc1: some warnings being treated as errors > > vim +/if +403 drivers/hid/uhid.c > > 387 __u8 phys[64]; > 388 __u8 uniq[64]; > 389 > 390 compat_uptr_t rd_data; > 391 __u16 rd_size; > 392 > 393 __u16 bus; > 394 __u32 vendor; > 395 __u32 product; > 396 __u32 version; > 397 __u32 country; > 398 } __attribute__((__packed__)); > 399 > 400 static int uhid_event_from_user(const char __user *buffer, size_t len, > 401 struct uhid_event *event) > 402 { > > 403 if (is_compat_task()) { > 404 u32 type; > 405 > 406 if (get_user(type, buffer)) > 407 return -EFAULT; > 408 > 409 if (type == UHID_CREATE) { > 410 /* > 411 * This is our messed up request with compat pointer. > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation -- Roderick Colenbrander Manager of Software Engineering Gaikai, a Sony Computer Entertainment Company roderick@xxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html