From: kbuild test robot <lkp@intel.com>
To: Roman Gushchin <guro@fb.com>
Cc: kbuild-all@01.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel-team@fb.com, tj@kernel.org,
Roman Gushchin <guro@fb.com>, Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>
Subject: Re: [PATCH bpf-next 08/14] bpf: introduce the bpf_get_local_storage() helper function
Date: Fri, 29 Jun 2018 04:02:08 +0800 [thread overview]
Message-ID: <201806290330.EIToJJaV%fengguang.wu@intel.com> (raw)
In-Reply-To: <20180628164719.28215-9-guro@fb.com>
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Hi Roman,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on bpf-next/master]
url: https://github.com/0day-ci/linux/commits/Roman-Gushchin/bpf-cgroup-local-storage/20180629-031527
base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: i386-randconfig-x017-201825 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All warnings (new ones prefixed by >>):
kernel/bpf/helpers.c: In function '____bpf_get_local_storage':
>> kernel/bpf/helpers.c:206:9: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
return (u64)this_cpu_read(bpf_cgroup_storage);
^
vim +206 kernel/bpf/helpers.c
198
199 BPF_CALL_2(bpf_get_local_storage, struct bpf_map *, map, u64, flags)
200 {
201 /* map and flags arguments are not used now,
202 * but provide an ability to extend the API
203 * for other types of local storages.
204 * verifier checks that their values are correct.
205 */
> 206 return (u64)this_cpu_read(bpf_cgroup_storage);
207 }
208
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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next prev parent reply other threads:[~2018-06-28 20:03 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-28 16:47 [PATCH bpf-next 00/14] bpf: cgroup local storage Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 01/14] bpf: add ability to charge bpf maps memory dynamically Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 02/14] bpf: introduce cgroup storage maps Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 03/14] bpf: pass a pointer to a cgroup storage using pcpu variable Roman Gushchin
2018-06-28 21:08 ` kbuild test robot
2018-06-29 2:08 ` kbuild test robot
2018-06-28 16:47 ` [PATCH bpf-next 04/14] bpf: allocate cgroup storage entries on attaching bpf programs Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 05/14] bpf: extend bpf_prog_array to store pointers to the cgroup storage Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 06/14] bpf/verifier: introduce BPF_PTR_TO_MAP_VALUE Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 07/14] bpf: don't allow create maps of cgroup local storages Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 08/14] bpf: introduce the bpf_get_local_storage() helper function Roman Gushchin
2018-06-28 20:02 ` kbuild test robot [this message]
2018-06-28 21:34 ` kbuild test robot
2018-06-28 16:47 ` [PATCH bpf-next 09/14] bpf: sync bpf.h to tools/ Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 10/14] bpftool: add support for CGROUP_STORAGE maps Roman Gushchin
2018-06-29 3:47 ` Jakub Kicinski
2018-06-28 16:47 ` [PATCH bpf-next 11/14] bpf/test_run: support cgroup local storage Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 12/14] selftests/bpf: add verifier cgroup storage tests Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 13/14] selftests/bpf: add a cgroup storage test Roman Gushchin
2018-06-28 16:47 ` [PATCH bpf-next 14/14] samples/bpf: extend test_cgrp2_attach2 test to use cgroup storage Roman Gushchin
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