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Date: Sat, 23 Mar 2019 11:53:40 +0100
From: Daniel Borkmann <daniel@...earbox.net>
To: Willem de Bruijn <willemdebruijn.kernel@...il.com>,
netdev@...r.kernel.org
Cc: ast@...nel.org, sdf@...gle.com, posk@...gle.com,
Willem de Bruijn <willemb@...gle.com>
Subject: Re: [PATCH bpf-next v3 00/13] bpf tc tunneling
Hey Willem,
On 03/22/2019 07:32 PM, Willem de Bruijn wrote:
> From: Willem de Bruijn <willemb@...gle.com>
>
> BPF allows for dynamic tunneling, choosing the tunnel destination and
> features on-demand. Extend bpf_skb_adjust_room to allow for efficient
> tunneling at the TC hooks.
Patch 9 in this series caused the following warning, please take a look
for sending a follow-up fix, thanks.
Report:
tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
branch HEAD: 7df5e3db8f6354125540dfa50affd2c02b7d2832 selftests: bpf: tc-bpf flow shaping with EDT
Regressions in current branch:
net/core/filter.c:3026:3: warning: 'mac_len' may be used uninitialized in this function [-Wmaybe-uninitialized]
net/core/filter.c:3027:3: warning: 'mac_len' may be used uninitialized in this function [-Wmaybe-uninitialized]
Error ids grouped by kconfigs:
recent_errors
├── arm64-allmodconfig
│ └── net-core-filter.c:warning:mac_len-may-be-used-uninitialized-in-this-function
└── x86_64-allmodconfig
└── net-core-filter.c:warning:mac_len-may-be-used-uninitialized-in-this-function
elapsed time: 171m
configs tested: 219
alpha defconfig
parisc allnoconfig
parisc b180_defconfig
parisc c3000_defconfig
parisc defconfig
um defconfig
arm u8500_defconfig
nds32 allyesconfig
mips pnx8335_stb225_defconfig
um allmodconfig
mips malta_kvm_guest_defconfig
powerpc mpc834x_itxgp_defconfig
x86_64 randconfig-a0-03231212
riscv tinyconfig
i386 tinyconfig
arm iop13xx_defconfig
arm pleb_defconfig
mips lemote2f_defconfig
powerpc mpc8560_ads_defconfig
mips bcm63xx_defconfig
powerpc mpc8540_ads_defconfig
alpha alldefconfig
nds32 allnoconfig
arm viper_defconfig
mips generic_defconfig
m68k mac_defconfig
mips rb532_defconfig
x86_64 fedora-25
x86_64 kexec
x86_64 lkp
x86_64 rhel
x86_64 rhel-7.6
i386 randconfig-n3-201911
i386 randconfig-n2-201911
i386 randconfig-n0-201911
i386 randconfig-n1-201911
mips 32r2_defconfig
mips 64r6el_defconfig
mips allmodconfig
mips allnoconfig
mips fuloong2e_defconfig
mips jz4740
mips malta_kvm_defconfig
mips txx9
nds32 defconfig
riscv allnoconfig
riscv defconfig
x86_64 allyesconfig
i386 allmodconfig
x86_64 randconfig-x015-201911
x86_64 randconfig-x016-201911
x86_64 randconfig-x013-201911
x86_64 randconfig-x012-201911
x86_64 randconfig-x017-201911
x86_64 randconfig-x018-201911
x86_64 randconfig-x010-201911
x86_64 randconfig-x014-201911
x86_64 randconfig-x019-201911
x86_64 randconfig-x011-201911
ia64 alldefconfig
ia64 allmodconfig
ia64 allnoconfig
ia64 defconfig
arm allmodconfig
arm arm5
arm arm67
arm imx_v6_v7_defconfig
arm ixp4xx_defconfig
arm mvebu_v7_defconfig
arm omap2plus_defconfig
arm sa1100
arm samsung
arm sh
arm tegra_defconfig
arm64 alldefconfig
arm64 allmodconfig
i386 randconfig-a1-201911
i386 randconfig-a2-201911
i386 randconfig-a0-201911
i386 randconfig-a3-201911
c6x evmc6678_defconfig
h8300 h8300h-sim_defconfig
nios2 10m50_defconfig
xtensa common_defconfig
xtensa iss_defconfig
arm allnoconfig
arm at91_dt_defconfig
arm efm32_defconfig
arm exynos_defconfig
arm multi_v5_defconfig
arm multi_v7_defconfig
arm shmobile_defconfig
arm sunxi_defconfig
arm64 allnoconfig
arm64 allyesconfig
arm64 defconfig
microblaze mmu_defconfig
microblaze nommu_defconfig
sparc defconfig
sparc64 allmodconfig
sparc64 allnoconfig
sparc64 defconfig
sh allyesconfig
sh ecovec24_defconfig
mips malta_qemu_32r6_defconfig
um x86_64_defconfig
arm ezx_defconfig
sh allnoconfig
mips bcm47xx_defconfig
powerpc fsp2_defconfig
arm aspeed_g4_defconfig
powerpc arches_defconfig
arm mps2_defconfig
arm tct_hammer_defconfig
arm cns3420vb_defconfig
s390 alldefconfig
c6x allmodconfig
powerpc currituck_defconfig
h8300 allyesconfig
powerpc maple_defconfig
arm spitz_defconfig
c6x allnoconfig
mips bmips_be_defconfig
powerpc ep8248e_defconfig
nios2 allyesconfig
x86_64 randconfig-u0-03231148
x86_64 randconfig-u0-03231200
x86_64 randconfig-u0-03231210
x86_64 randconfig-u0-03231220
x86_64 randconfig-u0-03231230
x86_64 randconfig-u0-03231240
x86_64 randconfig-k0-03180607
x86_64 randconfig-k1-03180607
x86_64 randconfig-k2-03180607
x86_64 randconfig-k3-03180607
i386 randconfig-k0-03180607
i386 randconfig-k1-03180607
i386 randconfig-k2-03180607
i386 randconfig-k3-03180607
x86_64 acpi-redef
x86_64 allyesdebian
x86_64 nfsroot
powerpc allnoconfig
powerpc defconfig
powerpc ppc64_defconfig
s390 default_defconfig
sh allmodconfig
sh rsk7269_defconfig
sh sh7785lcr_32bit_defconfig
sh titan_defconfig
openrisc or1ksim_defconfig
um i386_defconfig
x86_64 randconfig-m1-03190153
i386 randconfig-m0-03190153
x86_64 randconfig-m0-03190153
i386 randconfig-m1-03190153
x86_64 randconfig-m2-03190153
x86_64 randconfig-m3-03190153
i386 randconfig-m3-03190153
i386 randconfig-m2-03190153
x86_64 randconfig-l0-03230910
x86_64 randconfig-l1-03230910
x86_64 randconfig-l2-03230910
x86_64 randconfig-l3-03230910
i386 randconfig-l0-03230910
i386 randconfig-l1-03230910
i386 randconfig-l2-03230910
i386 randconfig-l3-03230910
x86_64 randconfig-s3-03231146
x86_64 randconfig-s4-03231146
x86_64 randconfig-s5-03231146
i386 randconfig-x010-201911
i386 randconfig-x018-201911
i386 randconfig-x017-201911
i386 randconfig-x013-201911
i386 randconfig-x014-201911
i386 randconfig-x011-201911
i386 randconfig-x015-201911
i386 randconfig-x019-201911
i386 randconfig-x012-201911
i386 randconfig-x016-201911
i386 randconfig-x077-201911
i386 randconfig-x070-201911
i386 randconfig-x074-201911
i386 randconfig-x072-201911
i386 randconfig-x075-201911
i386 randconfig-x071-201911
i386 randconfig-x078-201911
i386 randconfig-x079-201911
i386 randconfig-x076-201911
i386 randconfig-x073-201911
m68k allmodconfig
m68k m5475evb_defconfig
m68k multi_defconfig
m68k sun3_defconfig
i386 randconfig-x002-201911
i386 randconfig-x005-201911
i386 randconfig-x001-201911
i386 randconfig-x007-201911
i386 randconfig-x000-201911
i386 randconfig-x008-201911
i386 randconfig-x004-201911
i386 randconfig-x009-201911
i386 randconfig-x003-201911
i386 randconfig-x006-201911
x86_64 randconfig-x000-201911
x86_64 randconfig-x001-201911
x86_64 randconfig-x004-201911
x86_64 randconfig-x003-201911
x86_64 randconfig-x007-201911
x86_64 randconfig-x008-201911
x86_64 randconfig-x002-201911
x86_64 randconfig-x006-201911
x86_64 randconfig-x005-201911
x86_64 randconfig-x009-201911
i386 alldefconfig
i386 allnoconfig
i386 defconfig
x86_64 allmodconfig
---
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