Hi, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-3.14.y head: 96f343e0621a0d5afa9c2a34e2aee69f33b6eb5c commit: 3711edaf01a01818f2aed9f21efe29b9818134b9 [4656/4754] compiler-gcc: integrate the various compiler-gcc[345].h files config: i386-defconfig (attached as .config) compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430 reproduce: git checkout 3711edaf01a01818f2aed9f21efe29b9818134b9 # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): >> drivers/acpi/dock.c:54:36: warning: 'dock_device_ids' defined but not used [-Wunused-const-variable=] static const struct acpi_device_id dock_device_ids[] = { ^~~~~~~~~~~~~~~ -- >> net/ipv4/arp.c:152:31: warning: 'arp_broken_ops' defined but not used [-Wunused-const-variable=] static const struct neigh_ops arp_broken_ops = { ^~~~~~~~~~~~~~ -- net/netfilter/nfnetlink.c: In function 'nfnetlink_rcv': >> net/netfilter/nfnetlink.c:364:14: warning: unused variable 'net' [-Wunused-variable] struct net *net = sock_net(skb->sk); ^~~ vim +/dock_device_ids +54 drivers/acpi/dock.c a192a958 Len Brown 2009-07-28 38 #define PREFIX "ACPI: " a192a958 Len Brown 2009-07-28 39 7cda93e0 Len Brown 2007-02-12 40 #define ACPI_DOCK_DRIVER_DESCRIPTION "ACPI Dock Station Driver" c8f7a62c Len Brown 2006-07-09 41 f52fd66d Len Brown 2007-02-12 42 ACPI_MODULE_NAME("dock"); c8f7a62c Len Brown 2006-07-09 43 MODULE_AUTHOR("Kristen Carlson Accardi"); 7cda93e0 Len Brown 2007-02-12 44 MODULE_DESCRIPTION(ACPI_DOCK_DRIVER_DESCRIPTION); c8f7a62c Len Brown 2006-07-09 45 MODULE_LICENSE("GPL"); c8f7a62c Len Brown 2006-07-09 46 90ab5ee9 Rusty Russell 2012-01-13 47 static bool immediate_undock = 1; a0cd35fd Kristen Carlson Accardi 2007-05-09 48 module_param(immediate_undock, bool, 0644); a0cd35fd Kristen Carlson Accardi 2007-05-09 49 MODULE_PARM_DESC(immediate_undock, "1 (default) will cause the driver to " a0cd35fd Kristen Carlson Accardi 2007-05-09 50 "undock immediately when the undock button is pressed, 0 will cause" a0cd35fd Kristen Carlson Accardi 2007-05-09 51 " the driver to wait for userspace to write the undock sysfs file " a0cd35fd Kristen Carlson Accardi 2007-05-09 52 " before undocking"); a0cd35fd Kristen Carlson Accardi 2007-05-09 53 a340af14 Frank Seidel 2007-12-07 @54 static const struct acpi_device_id dock_device_ids[] = { a340af14 Frank Seidel 2007-12-07 55 {"LNXDOCK", 0}, a340af14 Frank Seidel 2007-12-07 56 {"", 0}, a340af14 Frank Seidel 2007-12-07 57 }; a340af14 Frank Seidel 2007-12-07 58 MODULE_DEVICE_TABLE(acpi, dock_device_ids); a340af14 Frank Seidel 2007-12-07 59 c8f7a62c Len Brown 2006-07-09 60 struct dock_station { c8f7a62c Len Brown 2006-07-09 61 acpi_handle handle; c8f7a62c Len Brown 2006-07-09 62 unsigned long last_dock_time; :::::: The code at line 54 was first introduced by commit :::::: a340af14b4c08a53c5f7d821d8bd910e17403384 ACPI: Add autoload info to dock driver :::::: TO: Frank Seidel <fseidel@xxxxxxx> :::::: CC: Len Brown <len.brown@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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