From: David Laight <David.Laight@ACULAB.COM>
To: "'Ming Lei'" <tom.leiming@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Alexei Starovoitov <ast@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
"Martin KaFai Lau" <kafai@fb.com>
Subject: RE: [PATCH 9/9] samples/bpf: test percpu array map
Date: Tue, 12 Jan 2016 15:44:49 +0000 [thread overview]
Message-ID: <063D6719AE5E284EB5DD2968C1650D6D1CCC461F@AcuExch.aculab.com> (raw)
In-Reply-To: <1452527821-12276-10-git-send-email-tom.leiming@gmail.com>
From: Ming Lei
> Sent: 11 January 2016 15:57
...
> ---
> samples/bpf/test_maps.c | 110 ++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 110 insertions(+)
>
> diff --git a/samples/bpf/test_maps.c b/samples/bpf/test_maps.c
> index 6299ee9..ff5d373 100644
> --- a/samples/bpf/test_maps.c
> +++ b/samples/bpf/test_maps.c
> @@ -142,6 +142,106 @@ static void test_arraymap_sanity(int i, void *data)
> close(map_fd);
> }
>
> +static int handle_one_cpu(unsigned cpu, void *val_cpu, void *val)
> +{
> + unsigned long *cnt = val;
> +
> + *cnt += *(long *)val_cpu;
Integer pointer casts ring big alarm bells - they are accidents
waiting to happen.
If the pointers are 'pointer to long' then define them as such.
David
prev parent reply other threads:[~2016-01-12 15:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-11 15:56 [PATCH 0/9] bpf: support percpu ARRAY map Ming Lei
2016-01-11 15:56 ` [PATCH 1/9] bpf: prepare for moving map common stuff into one place Ming Lei
2016-01-11 18:24 ` kbuild test robot
2016-01-11 15:56 ` [PATCH 2/9] bpf: array map: use pre-defined nop map function Ming Lei
2016-01-11 19:08 ` Alexei Starovoitov
2016-01-11 15:56 ` [PATCH 3/9] bpf: introduce percpu verion of lookup/update in bpf_map_ops Ming Lei
2016-01-11 15:56 ` [PATCH 4/9] bpf: add percpu version of lookup/update element helpers Ming Lei
2016-01-11 15:56 ` [PATCH 5/9] bpf: syscall: add percpu version of lookup/update elem Ming Lei
2016-01-11 19:02 ` Alexei Starovoitov
2016-01-12 5:00 ` Ming Lei
2016-01-12 5:49 ` Alexei Starovoitov
2016-01-12 11:05 ` Ming Lei
2016-01-12 19:10 ` Martin KaFai Lau
2016-01-13 0:38 ` Ming Lei
2016-01-13 2:22 ` Martin KaFai Lau
2016-01-13 3:17 ` Ming Lei
2016-01-13 5:30 ` Alexei Starovoitov
2016-01-13 14:56 ` Ming Lei
2016-01-14 1:19 ` Alexei Starovoitov
2016-01-14 2:42 ` Ming Lei
2016-01-14 5:08 ` Alexei Starovoitov
2016-01-14 7:16 ` Ming Lei
2016-01-11 15:56 ` [PATCH 6/9] bpf: arraymap: introduce BPF_MAP_TYPE_ARRAY_PERCPU Ming Lei
2016-01-11 19:14 ` Alexei Starovoitov
2016-01-11 15:56 ` [PATCH 7/9] sample/bpf: introduces helpers for percpu array example Ming Lei
2016-01-11 15:57 ` [PATCH 8/9] sample/bpf: sockex1: user percpu array map Ming Lei
2016-01-11 15:57 ` [PATCH 9/9] samples/bpf: test " Ming Lei
2016-01-12 15:44 ` David Laight [this message]
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