From: kernel test robot <lkp@intel.com>
To: Joanne Koong <joannekoong@fb.com>, bpf@vger.kernel.org
Cc: kbuild-all@lists.01.org, andrii@kernel.org, ast@kernel.org,
daniel@iogearbox.net, Joanne Koong <joannelkoong@gmail.com>
Subject: Re: [PATCH bpf-next v1 6/7] bpf: Dynptr support for ring buffers
Date: Sat, 2 Apr 2022 14:40:17 +0800 [thread overview]
Message-ID: <202204021459.6f2G1oTF-lkp@intel.com> (raw)
In-Reply-To: <20220402015826.3941317-7-joannekoong@fb.com>
Hi Joanne,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on bpf-next/master]
url: https://github.com/intel-lab-lkp/linux/commits/Joanne-Koong/Dynamic-pointers/20220402-100110
base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20220402/202204021459.6f2G1oTF-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/64c5b9e2d2df7ff61dd8bd2e36a29ffff264e2ff
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Joanne-Koong/Dynamic-pointers/20220402-100110
git checkout 64c5b9e2d2df7ff61dd8bd2e36a29ffff264e2ff
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash kernel/bpf/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
kernel/bpf/ringbuf.c: In function '____bpf_ringbuf_reserve_dynptr':
>> kernel/bpf/ringbuf.c:491:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
491 | sample = (void *)____bpf_ringbuf_reserve(map, size, flags);
| ^
vim +491 kernel/bpf/ringbuf.c
478
479 BPF_CALL_4(bpf_ringbuf_reserve_dynptr, struct bpf_map *, map, u32, size, u64, flags,
480 struct bpf_dynptr_kern *, ptr)
481 {
482 void *sample;
483 int err;
484
485 err = bpf_dynptr_check_size(size);
486 if (err) {
487 bpf_dynptr_set_null(ptr);
488 return err;
489 }
490
> 491 sample = (void *)____bpf_ringbuf_reserve(map, size, flags);
492
493 if (!sample) {
494 bpf_dynptr_set_null(ptr);
495 return -EINVAL;
496 }
497
498 bpf_dynptr_init(ptr, sample, BPF_DYNPTR_TYPE_RINGBUF, 0, size);
499
500 return 0;
501 }
502
--
0-DAY CI Kernel Test Service
https://01.org/lkp
next prev parent reply other threads:[~2022-04-02 6:40 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-02 1:58 [PATCH bpf-next v1 0/7] Dynamic pointers Joanne Koong
2022-04-02 1:58 ` [PATCH bpf-next v1 1/7] bpf: Add MEM_UNINIT as a bpf_type_flag Joanne Koong
2022-04-06 18:33 ` Andrii Nakryiko
2022-04-02 1:58 ` [PATCH bpf-next v1 2/7] bpf: Add MEM_RELEASE " Joanne Koong
2022-04-04 7:34 ` Kumar Kartikeya Dwivedi
2022-04-04 19:04 ` Joanne Koong
2022-04-06 18:42 ` Andrii Nakryiko
2022-04-02 1:58 ` [PATCH bpf-next v1 3/7] bpf: Add bpf_dynptr_from_mem, bpf_malloc, bpf_free Joanne Koong
2022-04-06 22:23 ` Andrii Nakryiko
2022-04-08 22:04 ` Joanne Koong
2022-04-08 22:46 ` Andrii Nakryiko
2022-04-08 23:37 ` Joanne Koong
2022-04-09 1:11 ` Alexei Starovoitov
2022-04-12 2:12 ` Andrii Nakryiko
2022-04-15 1:43 ` Joanne Koong
2022-04-12 2:05 ` Andrii Nakryiko
2022-04-02 1:58 ` [PATCH bpf-next v1 4/7] bpf: Add bpf_dynptr_read and bpf_dynptr_write Joanne Koong
2022-04-02 13:35 ` Toke Høiland-Jørgensen
2022-04-04 20:18 ` Joanne Koong
2022-04-06 22:32 ` Andrii Nakryiko
2022-04-08 23:07 ` Joanne Koong
2022-04-02 1:58 ` [PATCH bpf-next v1 5/7] bpf: Add dynptr data slices Joanne Koong
2022-04-02 1:58 ` [PATCH bpf-next v1 6/7] bpf: Dynptr support for ring buffers Joanne Koong
2022-04-02 6:40 ` kernel test robot [this message]
2022-04-06 22:50 ` Andrii Nakryiko
2022-04-02 1:58 ` [PATCH bpf-next v1 7/7] bpf: Dynptr tests Joanne Koong
2022-04-06 23:11 ` Andrii Nakryiko
2022-04-08 23:16 ` Joanne Koong
2022-04-06 23:13 ` [PATCH bpf-next v1 0/7] Dynamic pointers Andrii Nakryiko
2022-04-07 12:44 ` Brendan Jackman
2022-04-07 20:40 ` Joanne Koong
2022-04-08 10:21 ` Brendan Jackman
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