Messages in this thread | | | Date | Mon, 21 Mar 2022 23:18:33 -0700 | From | Saeed Mahameed <> | Subject | Re: linux-next: build failure after merge of the net-next tree |
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On 21 Mar 14:45, Jakub Kicinski wrote: >On Mon, 21 Mar 2022 18:39:41 +1100 Stephen Rothwell wrote: >> Hi all, >> >> After merging the net-next tree, today's linux-next build (x86_64 >> allmodconfig) failed like this: >> >> In file included from include/linux/string.h:253, >> from include/linux/bitmap.h:11, >> from include/linux/cpumask.h:12, >> from arch/x86/include/asm/cpumask.h:5, >> from arch/x86/include/asm/msr.h:11, >> from arch/x86/include/asm/processor.h:22, >> from arch/x86/include/asm/timex.h:5, >> from include/linux/timex.h:65, >> from include/linux/time32.h:13, >> from include/linux/time.h:60, >> from include/linux/ktime.h:24, >> from include/linux/timer.h:6, >> from include/linux/netdevice.h:24, >> from include/trace/events/xdp.h:8, >> from include/linux/bpf_trace.h:5, >> from drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c:33: >> In function 'fortify_memset_chk', >> inlined from 'mlx5e_xmit_xdp_frame' at drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c:438:3: >> include/linux/fortify-string.h:242:25: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning] >> 242 | __write_overflow_field(p_size_field, size); >> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> >> Caused by commit >> >> 9ded70fa1d81 ("net/mlx5e: Don't prefill WQEs in XDP SQ in the multi buffer mode") >> >> exposed by the kspp tree. >> >> I have applied the following fix patch for today (a better one is >> probably possible). > >Hi Saeed, > >thoughts? >
I forgot about this warning in net :-/ we did a similar patch to net to avoid it, Stephen's patch is correct, I will submit his fixup to net-next in the morning.
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