Re: [net-next PATCHv2] bpf: Output error message to logbuf when loading failure

[Wangnan (F)]

On 2015/10/27 11:26, Alexei Starovoitov wrote:
> On Mon, Oct 26, 2015 at 07:13:08AM +0000, Wang Nan wrote:
> > Many reasons can make bpf_prog_load() return EINVAL. This patch utilizes
> > logbuf to deliver the actual reason of the failure.
> >
> > Without this patch, it is very easy for user to pass an object with
> > "version" section not match the kernel version code, and the problem
> > is hard to determine from return code (EINVAL).
> >
> > Signed-off-by: Wang Nan <wangnan0@xxxxxxxxxx>
> > Cc: Alexei Starovoitov <ast@xxxxxxxxxx>
> > Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> > Cc: David S. Miller <davem@xxxxxxxxxxxxx>
> > Cc: Wu Fengguang <fengguang.wu@xxxxxxxxx>
> NACK
> for both implementation and design.
OK. Let perf to report error message.

Thank you.

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