Re: [PATCH] bpf.2: update JIT support list for Linux 4.18

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Hello Tobias,

On 8 August 2018 at 12:06, Tobias Klauser <tklauser@xxxxxxxxxx> wrote:
> JIT support for x86-32 was during the Linux 4.18 release cycle. Also
> correct the entry for MIPS (only MIPS64 is supported) and the source for
> the list.

Thanks for this. I'm fine with it all, except changing the source.
Your idea is to take whatever is said in the Doc file as the source,
but that relies on that file being correctly up to date. I prefer to
keep the documented source as is. (It may not be perfect, but it does
give some independent verification of the actual state of the various
architectures.)

Patch applied, but tweaked as I note above, to maintain mention of my
source, and add mention of your source..

Thanks,

Michael

> Signed-off-by: Tobias Klauser <tklauser@xxxxxxxxxx>
> ---
>  man2/bpf.2 | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/man2/bpf.2 b/man2/bpf.2
> index c712dce4150e..cbc131df2a83 100644
> --- a/man2/bpf.2
> +++ b/man2/bpf.2
> @@ -1181,7 +1181,8 @@ is initialized to 1 and is immutable.
>  one of the Spectre attacks against the BPF interpreter.)
>  .PP
>  The JIT compiler for eBPF is currently
> -.\" last reviewed in Linux 4.16-rc by grepping for BPF_ALU64
> +.\" last reviewed in Linux 4.18-rc by checking the documentation for
> +.\" bpf_jit_enable in Documentation/sysctl/net.txt
>  available for the following architectures:
>  .IP * 3
>  x86-64 (since Linux 3.18);
> @@ -1195,9 +1196,11 @@ PowerPC 64 (since Linux 4.8);
>  .IP *
>  SPARC 64 (since Linux 4.12);
>  .IP *
> -MIPS (since Linux 4.13);
> +MIPS 64 (since Linux 4.13);
>  .IP *
>  ARM32 (since Linux 4.14).
> +.IP *
> +x86-32 (since Linux 4.18).
>  .PD
>  .SH SEE ALSO
>  .BR seccomp (2),
> --
> 2.18.0.130.g98da2f6b3e4a
>
>



--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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