[linux-next:master] BUILD REGRESSION c3f7b3be172b39d90b4c5cb87a2231cc6c2c8dcf

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tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
branch HEAD: c3f7b3be172b39d90b4c5cb87a2231cc6c2c8dcf  Add linux-next specific files for 20210803

Error/Warning reports:

https://lore.kernel.org/linux-mm/202108040605.i3mJiObA-lkp@xxxxxxxxx

Error/Warning in current branch:

../../drivers/virtio/virtio_ring.c:1277:36: error: 'head_flags' may be used uninitialized in this function [-Werror=maybe-uninitialized]
../../drivers/virtio/virtio_ring.c:578:29: error: 'prev' may be used uninitialized in this function [-Werror=maybe-uninitialized]
./linux/../../../include/linux/vringh.h:50:2: error: unknown type name 'spinlock_t'
drivers/firmware/efi/sysfb_efi.c:190:35: warning: unused variable 'efifb_dmi_system_table' [-Wunused-const-variable]
drivers/firmware/efi/sysfb_efi.c:240:35: warning: unused variable 'efifb_dmi_swap_width_height' [-Wunused-const-variable]
drivers/firmware/efi/sysfb_efi.c:331:39: warning: unused variable 'efifb_fwnode_ops' [-Wunused-const-variable]
drivers/gpu/drm/tegra/uapi.c:284:5: warning: no previous prototype for 'tegra_drm_ioctl_gem_create' [-Wmissing-prototypes]
drivers/gpu/drm/tegra/uapi.c:301:5: warning: no previous prototype for 'tegra_drm_ioctl_gem_mmap' [-Wmissing-prototypes]
kernel/user.c:141:28: error: 'struct user_struct' has no member named 'epoll_watches'
kernel/user.c:141:30: error: 'struct user_struct' has no member named 'epoll_watches'; did you mean 'nr_watches'?
main.c:117:50: error: 'ret' undeclared (first use in this function)
usr/include/linux/if_ether.h:172:1: error: packed attribute is unnecessary for 'ethhdr' [-Werror=packed]

possible Error/Warning in current branch:

arch/parisc/math-emu/decode_exc.c:49:14: error: expected identifier before numeric constant
drivers/clk/renesas/rzg2l-cpg.c:303 rzg2l_cpg_register_core_clk() warn: passing zero to 'PTR_ERR'
drivers/gpu/drm/msm/msm_ringbuffer.c:54:36: sparse: sparse: symbol 'msm_sched_ops' was not declared. Should it be static?
drivers/gpu/drm/nouveau/dispnv50/disp.c:1665:52: error: 'struct nouveau_connector' has no member named 'backlight'
drivers/gpu/drm/nouveau/dispnv50/disp.c:1665:54: error: no member named 'backlight' in 'struct nouveau_connector'
drivers/gpu/drm/nouveau/dispnv50/disp.c:1670:28: error: incomplete definition of type 'struct nouveau_backlight'
drivers/gpu/drm/nouveau/dispnv50/disp.c:1670:28: error: invalid use of undefined type 'struct nouveau_backlight'
drivers/gpu/host1x/fence.c:168:5: warning: no previous prototype for 'host1x_fence_create_fd' [-Wmissing-prototypes]
drivers/net/can/usb/peak_usb/pcan_usb.c:523 pcan_usb_decode_error() error: we previously assumed 'cf' could be null (see line 503)
drivers/of/fdt.c:196:4: warning: Value stored to 'pprev' is never read [clang-analyzer-deadcode.DeadStores]
fs/btrfs/ioctl.c:2421:3: warning: Value stored to 'dirid' is never read [clang-analyzer-deadcode.DeadStores]
fs/btrfs/lzo.c:382:6: warning: Branch condition evaluates to a garbage value [clang-analyzer-core.uninitialized.Branch]
include/linux/printk.h:380:5: error: expected '}' before '.' token
kernel/bpf/syscall.o: warning: objtool: map_lookup_elem()+0x29f: unreachable instruction
mm/debug_vm_pgtable.o: warning: objtool: pte_advanced_tests()+0x333: unreachable instruction
net/ipv4/ip_output.o: warning: objtool: ip_generic_getfrag()+0x108: unreachable instruction
net/ipv4/raw.o: warning: objtool: raw_send_hdrinc()+0x6ae: unreachable instruction
net/ipv4/udp.o: warning: objtool: udplite_getfrag()+0x47: unreachable instruction
net/ipv6/ioam6.o: warning: objtool: ioam6_genl_dumpns()+0x355: unreachable instruction
net/ipv6/raw.o: warning: objtool: rawv6_send_hdrinc()+0x5e8: unreachable instruction
net/netfilter/ipset/ip_set_hash_ipportnet.c:249:29: warning: variable 'port_to' is uninitialized when used here [-Wuninitialized]
net/netfilter/ipset/ip_set_hash_ipportnet.c:249:39: warning: variable 'port' is uninitialized when used here [-Wuninitialized]
net/netlink/af_netlink.o: warning: objtool: netlink_sendmsg()+0x541: unreachable instruction

Error/Warning ids grouped by kconfigs:

gcc_recent_errors
|-- alpha-buildonly-randconfig-r003-20210802
|   `-- kernel-user.c:error:struct-user_struct-has-no-member-named-epoll_watches
|-- arm-allmodconfig
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_create
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_mmap
|   `-- drivers-gpu-host1x-fence.c:warning:no-previous-prototype-for-host1x_fence_create_fd
|-- arm-allyesconfig
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_create
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_mmap
|   `-- drivers-gpu-host1x-fence.c:warning:no-previous-prototype-for-host1x_fence_create_fd
|-- arm-defconfig
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_create
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_mmap
|   `-- drivers-gpu-host1x-fence.c:warning:no-previous-prototype-for-host1x_fence_create_fd
|-- arm64-allyesconfig
|   |-- drivers-gpu-drm-msm-msm_ringbuffer.c:sparse:sparse:symbol-msm_sched_ops-was-not-declared.-Should-it-be-static
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_create
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_mmap
|   `-- drivers-gpu-host1x-fence.c:warning:no-previous-prototype-for-host1x_fence_create_fd
|-- arm64-defconfig
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_create
|   |-- drivers-gpu-drm-tegra-uapi.c:warning:no-previous-prototype-for-tegra_drm_ioctl_gem_mmap
|   `-- drivers-gpu-host1x-fence.c:warning:no-previous-prototype-for-host1x_fence_create_fd
|-- h8300-h8300h-sim_defconfig
|   `-- kernel-user.c:error:struct-user_struct-has-no-member-named-epoll_watches
|-- h8300-randconfig-m031-20210803
|   `-- drivers-clk-renesas-rzg2l-cpg.c-rzg2l_cpg_register_core_clk()-warn:passing-zero-to-PTR_ERR
|-- ia64-randconfig-r015-20210803
|   `-- kernel-user.c:error:struct-user_struct-has-no-member-named-epoll_watches
|-- mips-randconfig-s032-20210803
|   |-- drivers-gpu-drm-nouveau-dispnv50-disp.c:error:invalid-use-of-undefined-type-struct-nouveau_backlight
|   `-- drivers-gpu-drm-nouveau-dispnv50-disp.c:error:struct-nouveau_connector-has-no-member-named-backlight
|-- parisc-allyesconfig
|   |-- arch-parisc-math-emu-decode_exc.c:error:expected-identifier-before-numeric-constant
|   `-- include-linux-printk.h:error:expected-before-.-token
|-- parisc-randconfig-m031-20210803
|   `-- drivers-net-can-usb-peak_usb-pcan_usb.c-pcan_usb_decode_error()-error:we-previously-assumed-cf-could-be-null-(see-line-)
|-- riscv-buildonly-randconfig-r002-20210802
|   `-- kernel-user.c:error:struct-user_struct-has-no-member-named-epoll_watches
|-- riscv-buildonly-randconfig-r005-20210802
|   `-- kernel-user.c:error:struct-user_struct-has-no-member-named-epoll_watches
|-- riscv-nommu_k210_defconfig
|   `-- kernel-user.c:error:struct-user_struct-has-no-member-named-epoll_watches
|-- riscv-nommu_virt_defconfig
|   `-- kernel-user.c:error:struct-user_struct-has-no-member-named-epoll_watches
|-- sh-randconfig-s032-20210803
|   `-- arch-sh-kernel-traps_32.c:sparse:sparse:incorrect-type-in-initializer-(different-address-spaces)-expected-unsigned-short-const-noderef-__user-__gu_addr-got-unsigned-short
|-- sparc64-buildonly-randconfig-r004-20210802
|   `-- kernel-user.c:error:struct-user_struct-has-no-member-named-epoll_watches
`-- x86_64-rhel-8.3-kselftests
    |-- drivers-virtio-virtio_ring.c:error:head_flags-may-be-used-uninitialized-in-this-function
    |-- drivers-virtio-virtio_ring.c:error:prev-may-be-used-uninitialized-in-this-function
    |-- linux-..-..-..-include-linux-vringh.h:error:unknown-type-name-spinlock_t
    |-- main.c:error:ret-undeclared-(first-use-in-this-function)
    `-- usr-include-linux-if_ether.h:error:packed-attribute-is-unnecessary-for-ethhdr

clang_recent_errors
|-- x86_64-randconfig-a002-20210804
|   |-- drivers-firmware-efi-sysfb_efi.c:warning:unused-variable-efifb_dmi_swap_width_height
|   |-- drivers-firmware-efi-sysfb_efi.c:warning:unused-variable-efifb_dmi_system_table
|   `-- drivers-firmware-efi-sysfb_efi.c:warning:unused-variable-efifb_fwnode_ops
|-- x86_64-randconfig-a006-20210804
|   |-- drivers-gpu-drm-nouveau-dispnv50-disp.c:error:incomplete-definition-of-type-struct-nouveau_backlight
|   |-- drivers-gpu-drm-nouveau-dispnv50-disp.c:error:no-member-named-backlight-in-struct-nouveau_connector
|   |-- net-netfilter-ipset-ip_set_hash_ipportnet.c:warning:variable-port-is-uninitialized-when-used-here
|   `-- net-netfilter-ipset-ip_set_hash_ipportnet.c:warning:variable-port_to-is-uninitialized-when-used-here
`-- x86_64-randconfig-c001-20210803
    |-- drivers-of-fdt.c:warning:Value-stored-to-pprev-is-never-read-clang-analyzer-deadcode.DeadStores
    |-- fs-btrfs-compression.o:warning:objtool:btrfs_submit_compressed_read():unreachable-instruction
    |-- fs-btrfs-inode.o:warning:objtool:btrfs_add_link():unreachable-instruction
    |-- fs-btrfs-ioctl.c:warning:Value-stored-to-dirid-is-never-read-clang-analyzer-deadcode.DeadStores
    |-- fs-btrfs-lzo.c:warning:Branch-condition-evaluates-to-a-garbage-value-clang-analyzer-core.uninitialized.Branch
    |-- kernel-bpf-syscall.o:warning:objtool:map_lookup_elem():unreachable-instruction
    |-- mm-debug_vm_pgtable.o:warning:objtool:pte_advanced_tests():unreachable-instruction
    |-- net-ipv4-ip_output.o:warning:objtool:ip_generic_getfrag():unreachable-instruction
    |-- net-ipv4-raw.o:warning:objtool:raw_send_hdrinc():unreachable-instruction
    |-- net-ipv4-udp.o:warning:objtool:udplite_getfrag():unreachable-instruction
    |-- net-ipv6-ioam6.o:warning:objtool:ioam6_genl_dumpns():unreachable-instruction
    |-- net-ipv6-raw.o:warning:objtool:rawv6_send_hdrinc():unreachable-instruction
    `-- net-netlink-af_netlink.o:warning:objtool:netlink_sendmsg():unreachable-instruction

elapsed time: 759m

configs tested: 92
configs skipped: 3

gcc tested configs:
arm                                 defconfig
arm64                            allyesconfig
arm64                               defconfig
arm                              allyesconfig
arm                              allmodconfig
mips                           ip28_defconfig
arm                        cerfcube_defconfig
arm                        neponset_defconfig
arc                        nsimosci_defconfig
powerpc                 xes_mpc85xx_defconfig
arm                         s3c6400_defconfig
arm                            xcep_defconfig
arm                         vf610m4_defconfig
ia64                             alldefconfig
powerpc                      ppc64e_defconfig
s390                             alldefconfig
sh                           se7343_defconfig
h8300                    h8300h-sim_defconfig
ia64                      gensparse_defconfig
powerpc                     mpc512x_defconfig
ia64                             allmodconfig
ia64                                defconfig
ia64                             allyesconfig
x86_64                            allnoconfig
m68k                             allmodconfig
m68k                                defconfig
m68k                             allyesconfig
nios2                               defconfig
arc                              allyesconfig
nds32                             allnoconfig
nds32                               defconfig
nios2                            allyesconfig
csky                                defconfig
alpha                               defconfig
alpha                            allyesconfig
xtensa                           allyesconfig
h8300                            allyesconfig
arc                                 defconfig
sh                               allmodconfig
parisc                              defconfig
s390                             allyesconfig
s390                             allmodconfig
parisc                           allyesconfig
s390                                defconfig
i386                             allyesconfig
sparc                            allyesconfig
sparc                               defconfig
i386                                defconfig
mips                             allyesconfig
mips                             allmodconfig
powerpc                          allyesconfig
powerpc                          allmodconfig
powerpc                           allnoconfig
i386                 randconfig-a004-20210803
i386                 randconfig-a005-20210803
i386                 randconfig-a002-20210803
i386                 randconfig-a006-20210803
i386                 randconfig-a001-20210803
i386                 randconfig-a003-20210803
i386                 randconfig-a012-20210803
i386                 randconfig-a011-20210803
i386                 randconfig-a015-20210803
i386                 randconfig-a013-20210803
i386                 randconfig-a014-20210803
i386                 randconfig-a016-20210803
riscv                    nommu_k210_defconfig
riscv                            allyesconfig
riscv                    nommu_virt_defconfig
riscv                             allnoconfig
riscv                               defconfig
riscv                          rv32_defconfig
riscv                            allmodconfig
um                           x86_64_defconfig
um                             i386_defconfig
x86_64                           allyesconfig
x86_64                    rhel-8.3-kselftests
x86_64                              defconfig
x86_64                               rhel-8.3
x86_64                                  kexec

clang tested configs:
x86_64               randconfig-c001-20210803
x86_64               randconfig-a002-20210804
x86_64               randconfig-a006-20210804
x86_64               randconfig-a004-20210804
x86_64               randconfig-a003-20210804
x86_64               randconfig-a001-20210804
x86_64               randconfig-a005-20210804
x86_64               randconfig-a012-20210803
x86_64               randconfig-a016-20210803
x86_64               randconfig-a013-20210803
x86_64               randconfig-a011-20210803
x86_64               randconfig-a014-20210803
x86_64               randconfig-a015-20210803

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx




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