[linux-next:master] BUILD REGRESSION 7999516e20bd9bb5d1f7351cbd05ca529a3a8d60

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tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
branch HEAD: 7999516e20bd9bb5d1f7351cbd05ca529a3a8d60  Add linux-next specific files for 20210806

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]
drivers/spi/spi-mt65xx.c:242:10: warning: comparison of distinct pointer types ('typeof (hold) *' (aka 'unsigned short *') and 'typeof (65535) *' (aka 'int *')) [-Wcompare-distinct-pointer-types]
drivers/spi/spi-mt65xx.c:242:24: sparse:    int *
drivers/spi/spi-mt65xx.c:242:24: sparse:    unsigned short *
drivers/spi/spi-mt65xx.c:243:11: warning: comparison of distinct pointer types ('typeof (setup) *' (aka 'unsigned short *') and 'typeof (65535) *' (aka 'int *')) [-Wcompare-distinct-pointer-types]
drivers/spi/spi-mt65xx.c:261:13: warning: comparison of distinct pointer types ('typeof (inactive) *' (aka 'unsigned short *') and 'typeof (255) *' (aka 'int *')) [-Wcompare-distinct-pointer-types]
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:

(.text+0x708): undefined reference to `dma_fence_signal'
(.text+0xf0): undefined reference to `dma_fence_context_alloc'
arch/parisc/math-emu/decode_exc.c:49:14: error: expected identifier before numeric constant
arm-linux-gnueabi-ld: (.text+0x118): undefined reference to `dma_fence_init'
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: dereferencing pointer to incomplete type 'struct nouveau_backlight'
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/net/can/usb/peak_usb/pcan_usb.c:523:32: warning: Dereference of null pointer [clang-analyzer-core.NullDereference]
drivers/net/ethernet/mellanox/mlx5/core/en/channels.c:1:0: warning: dual license is used, are you sure you want to do this.
drivers/net/ethernet/mellanox/mlx5/core/en/channels.h:1:0: warning: dual license is used, are you sure you want to do this.
drivers/net/ethernet/mellanox/mlx5/core/lib/fs_ttc.c:1:0: warning: dual license is used, are you sure you want to do this.
drivers/net/ethernet/mellanox/mlx5/core/lib/fs_ttc.h:1:0: warning: dual license is used, are you sure you want to do this.
drivers/ptp/ptp_ocp.c:830:2: warning: Undefined or garbage value returned to caller [clang-analyzer-core.uninitialized.UndefReturn]
drivers/tty/serial/8250/8250_core.c:401:48: warning: parameter 'line' set but not used [-Wunused-but-set-parameter]
drivers/tty/serial/8250/8250_core.c:52:32: error: 'CONFIG_SERIAL_8250_RUNTIME_UARTS' undeclared here (not in a function); did you mean 'CONFIG_SERIAL_8250_SHARE_IRQ'?
drivers/tty/serial/8250/8250_core.c:74:17: error: 'CONFIG_SERIAL_8250_NR_UARTS' undeclared here (not in a function); did you mean 'CONFIG_SERIAL_8250_EXTENDED'?
fence.c:(.text+0x2bc): undefined reference to `dma_fence_release'
fence.c:(.text+0x3ac): undefined reference to `dma_fence_signal'
fence.c:(.text+0x64): undefined reference to `dma_fence_free'
include/linux/build_bug.h:16:51: error: bit-field '<anonymous>' width not an integer constant
include/linux/printk.h:380:5: error: expected '}' before '.' token
setup.c:(.init.text+0x14b8): undefined reference to `plat_swiotlb_setup'

Error/Warning ids grouped by kconfigs:

gcc_recent_errors
|-- alpha-randconfig-r026-20210804
|   |-- 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
|-- 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
|-- 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
|-- 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
|-- arm-randconfig-r003-20210804
|   |-- (.text):undefined-reference-to-dma_fence_context_alloc
|   |-- (.text):undefined-reference-to-dma_fence_signal
|   |-- arm-linux-gnueabi-ld:(.text):undefined-reference-to-dma_fence_init
|   |-- fence.c:(.text):undefined-reference-to-dma_fence_free
|   |-- fence.c:(.text):undefined-reference-to-dma_fence_release
|   `-- fence.c:(.text):undefined-reference-to-dma_fence_signal
|-- arm64-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
|-- 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
|-- arm64-randconfig-s032-20210806
|   |-- drivers-spi-spi-mt65xx.c:sparse:int
|   |-- drivers-spi-spi-mt65xx.c:sparse:sparse:incompatible-types-in-comparison-expression-(different-type-sizes):
|   `-- drivers-spi-spi-mt65xx.c:sparse:unsigned-short
|-- i386-randconfig-a014-20210805
|   |-- drivers-gpu-drm-nouveau-dispnv50-disp.c:error:dereferencing-pointer-to-incomplete-type-struct-nouveau_backlight
|   `-- drivers-gpu-drm-nouveau-dispnv50-disp.c:error:struct-nouveau_connector-has-no-member-named-backlight
|-- mips-allyesconfig
|   `-- setup.c:(.init.text):undefined-reference-to-plat_swiotlb_setup
|-- parisc-allyesconfig
|   |-- arch-parisc-math-emu-decode_exc.c:error:expected-identifier-before-numeric-constant
|   `-- include-linux-printk.h:error:expected-before-.-token
|-- powerpc-randconfig-r035-20210805
|   |-- drivers-tty-serial-8250_core.c:error:CONFIG_SERIAL_8250_NR_UARTS-undeclared-here-(not-in-a-function)
|   |-- drivers-tty-serial-8250_core.c:error:CONFIG_SERIAL_8250_RUNTIME_UARTS-undeclared-here-(not-in-a-function)
|   |-- drivers-tty-serial-8250_core.c:warning:parameter-line-set-but-not-used
|   `-- include-linux-build_bug.h:error:bit-field-anonymous-width-not-an-integer-constant
|-- x86_64-allnoconfig
|   |-- drivers-net-ethernet-mellanox-mlx5-core-en-channels.c:warning:dual-license-is-used-are-you-sure-you-want-to-do-this.
|   |-- drivers-net-ethernet-mellanox-mlx5-core-en-channels.h:warning:dual-license-is-used-are-you-sure-you-want-to-do-this.
|   |-- drivers-net-ethernet-mellanox-mlx5-core-lib-fs_ttc.c:warning:dual-license-is-used-are-you-sure-you-want-to-do-this.
|   `-- drivers-net-ethernet-mellanox-mlx5-core-lib-fs_ttc.h:warning:dual-license-is-used-are-you-sure-you-want-to-do-this.
`-- 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
|-- hexagon-randconfig-r016-20210804
|   |-- drivers-spi-spi-mt65xx.c:warning:comparison-of-distinct-pointer-types-(-typeof-(hold)-(aka-unsigned-short-)-and-typeof-()-(aka-int-))
|   |-- drivers-spi-spi-mt65xx.c:warning:comparison-of-distinct-pointer-types-(-typeof-(inactive)-(aka-unsigned-short-)-and-typeof-()-(aka-int-))
|   `-- drivers-spi-spi-mt65xx.c:warning:comparison-of-distinct-pointer-types-(-typeof-(setup)-(aka-unsigned-short-)-and-typeof-()-(aka-int-))
|-- 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
|-- x86_64-randconfig-c001-20210807
|   |-- drivers-net-can-usb-peak_usb-pcan_usb.c:warning:Dereference-of-null-pointer-clang-analyzer-core.NullDereference
|   `-- drivers-ptp-ptp_ocp.c:warning:Undefined-or-garbage-value-returned-to-caller-clang-analyzer-core.uninitialized.UndefReturn
`-- x86_64-randconfig-r001-20210806
    |-- drivers-gpu-drm-i915-display-intel_dpll_mgr.o:warning:objtool:icl_get_dplls():unreachable-instruction
    |-- drivers-gpu-drm-i915-display-skl_universal_plane.o:warning:objtool:glk_plane_max_width():unreachable-instruction
    |-- drivers-gpu-drm-i915-gem-i915_gem_ttm.o:warning:objtool:i915_ttm_swap_notify():unreachable-instruction
    |-- drivers-gpu-drm-i915-gt-intel_region_lmem.o:warning:objtool:intel_gt_setup_lmem():unreachable-instruction
    |-- drivers-gpu-drm-i915-intel_dram.o:warning:objtool:bxt_get_dram_info():unreachable-instruction
    `-- fs-btrfs-inode.o:warning:objtool:compress_file_range():unreachable-instruction

elapsed time: 2570m

configs tested: 98
configs skipped: 3

gcc tested configs:
arm                                 defconfig
arm64                            allyesconfig
arm64                               defconfig
arm                              allyesconfig
arm                              allmodconfig
i386                 randconfig-c001-20210805
um                           x86_64_defconfig
riscv                            allyesconfig
mips                             allyesconfig
um                             i386_defconfig
mips                             allmodconfig
riscv                            allmodconfig
arc                              allyesconfig
nios2                            allyesconfig
alpha                            allyesconfig
mips                     loongson1b_defconfig
arm                           sama5_defconfig
sh                     sh7710voipgw_defconfig
sh                          rsk7264_defconfig
arm                       imx_v6_v7_defconfig
ia64                        generic_defconfig
powerpc                         wii_defconfig
mips                        bcm47xx_defconfig
sh                            migor_defconfig
powerpc                      tqm8xx_defconfig
mips                           gcw0_defconfig
powerpc                     pq2fads_defconfig
mips                        omega2p_defconfig
arm                          collie_defconfig
powerpc                  mpc885_ads_defconfig
powerpc                      obs600_defconfig
powerpc                      walnut_defconfig
mips                          rb532_defconfig
arm                       spear13xx_defconfig
arm                         nhk8815_defconfig
x86_64                            allnoconfig
ia64                             allmodconfig
ia64                                defconfig
ia64                             allyesconfig
m68k                             allmodconfig
m68k                                defconfig
m68k                             allyesconfig
nios2                               defconfig
nds32                             allnoconfig
nds32                               defconfig
csky                                defconfig
alpha                               defconfig
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
powerpc                          allyesconfig
powerpc                          allmodconfig
powerpc                           allnoconfig
i386                 randconfig-a005-20210804
i386                 randconfig-a004-20210804
i386                 randconfig-a002-20210804
i386                 randconfig-a006-20210804
i386                 randconfig-a003-20210804
i386                 randconfig-a001-20210804
x86_64               randconfig-a012-20210804
x86_64               randconfig-a016-20210804
x86_64               randconfig-a011-20210804
x86_64               randconfig-a013-20210804
x86_64               randconfig-a014-20210804
x86_64               randconfig-a015-20210804
i386                 randconfig-a012-20210805
i386                 randconfig-a011-20210805
i386                 randconfig-a015-20210805
i386                 randconfig-a013-20210805
i386                 randconfig-a014-20210805
i386                 randconfig-a016-20210805
riscv                    nommu_k210_defconfig
riscv                    nommu_virt_defconfig
riscv                             allnoconfig
riscv                               defconfig
riscv                          rv32_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-c001-20210804
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

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




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